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Keywords: ct
BReP-SNAP-I-9Building a Patient-Specific Model Using Transfer Learning for 4D-CBCT Augmentation
L Sun*, Y Chang, Z Jiang, L Ren, Duke University Medical Center, Cary, NC
BReP-SNAP-I-11Comparison of a Deep Learning-Based CT Reconstruction Algorithm (AiCE) to Other Reconstruction Techniques in a Pediatric Population
S Brady*, E Somasundaram, J Dillman, A Trout, Cincinnati Childrens Hospital Med Ctr, Cincinnati, OH
BReP-SNAP-I-12Cone-Beam CT Image Reconstruction with Spherical Harmonics
T Shimomura*, A Haga, Tokushima UniversityTokushimaJP
BReP-SNAP-I-13Dedicated Breast CT: Comparative Evaluation of Multi-Scale Residual Dense Network and Residual Encoder-Decoder Network for Deep Learning-Driven Sparse-View Reconstruction
Z Fu, H Tseng, S Vedantham*, A Karellas, A Bilgin, University of Arizona, Tucson, AZ
BReP-SNAP-I-17Dynamic Range Reducer for C-Arm Cone-Beam CT Acquisitions: Initial Prototype and Evaluation
H Zhang1*, N Bennett2, S Hsieh3, K Mueller4, R Fahrig5, A Maier6, M Levenston7, G Gold8, A Wang9, (1) Stanford University, Stanford, CA, (2) Stanford University, Stanford, CA, (3) Mayo Clinic, Rochester, MN, (4) Siemens Medical Solutions Inc. (5) Siemens Healthcare GmbH (6) University of Erlangen-Nuremberg, (7) Stanford University, Stanford, CA, (8) Stanford University, Stanford, CA, (9) Stanford University, Stanford, CA
BReP-SNAP-I-18Electronic X-Ray Field Alignment Detection
E mckenzie1*, I Rutel2, (1) University of Alabama at Birmingham, Birmingham, AL, (2) University of Oklahoma Health Science Center, Oklahoma City, OK
BReP-SNAP-I-20Evaluation of CT-Based Radiomics Features for Predicting Parameters Measured Using a Pulmonary Function Test
Y Ieko1,2*, N Kadoya1, K Abe1,3, S Tanaka1, H Takagi4, T Kanai5, K Ichiji6, T Yamamoto1, H Ariga2, K Jingu1, (1) Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan, (2) Department of Radiation Oncology, Iwate Medical University School of Medicine, Iwate, Japan, (3) Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan, (4) Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan, (5) Department of Radiation Oncology, Yamagata University Faculty of Medicine, Yamagata, Japan, (6) Department of Radiological Imaging and Informatics, Tohoku University Graduate School of Medicine, Sendai, Japan.
BReP-SNAP-I-24Implementation of CT Protocol Management Software to Detect Deviations From Master Protocols
K Little1*, J Jacobs2, N Fitousi2, M Robins1, J Carpenter1, A Rupe1, D Hintenlang1, (1) Ohio State Univ, Columbus, OH, (2) Qaelum NV, Leuven, BE
BReP-SNAP-I-28Integrated Intensity-Based Quantification of Small Airway Dimensions Using Computed Tomography
Y Zhao, S Molloi*, University of California-Irvine, Irvine, CA
BReP-SNAP-I-30Investigation of the NPS as a Tool for Routine Quality Control of Digital X-Ray Systems
M Ghorbanzade*, I Elbakri, CancerCare Manitoba, Winnipeg, MBCA,
BReP-SNAP-I-31Machine Learning-Based Prediction of Contrast Enhancement in Transcatheter Aortic Valve Replacement CT
E Macdonald*, Z Qi, N Bevins, Henry Ford Health System, Detroit, MI
BReP-SNAP-I-33Maximum Likelihood-Based Charge Sharing Correction for Spectroscopic X-Ray Detectors
R Lalonde1*, K Iniewski2, J Tanguay1, (1) Ryerson University, Toronto, ON, CA, (2) Redlen Technologies, Saanichton, BC, CA
BReP-SNAP-I-34Noise Power Spectrum Analysis
E mckenzie*, D Gauntt, UAB Medical Center, Birmingham, AL
BReP-SNAP-I-35Orthogonal Limited Arc Scan Combinations of Cone-Beam CT Reconstructed Iteratively to Reduce Photon Starvation Artifacts Caused by Pedicle Screws
M Hermansen*, S Banks, M Arreola, A Entezari, F Bova, University of Florida, Gainesville, FL
BReP-SNAP-I-43Reducing the Number of Projections in CT Imaging Using Domain-Transform Manifold Learning
A Cramer1*, N Koonjoo2, B Zhu2, R Gupta3, M Rosen2, (1) Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA, (2) MGH/Martinos Center for Biomedical Imaging, Boston, MA, (3) Massachusetts General Hospital, Boston, MA
BReP-SNAP-I-44Scatter Correction of Sparsely Acquired 4D Cone-Beam CT by Bayesian Monte Carlo Extrapolation
S Blake*, O Dillon, R O'Brien, ACRF Image-X Institute, The University of Sydney, Eveleigh, NSW, Australia
BReP-SNAP-I-45Segmented Multislice Acquisition for Motion-Insensitive Super Resolution Multislice T2-Weighted Fast-Spin-Echo Imaging
S Kargar1,2*, E Borisch2, A Froemming2, R Grimm2, A Kawashima3, B King2, E Stinson2, S Riederer2, (1) University of Wisconsin-Madison, Madison WI, (2) Mayo Clinic, Rochester MN (3) Mayo Clinic, Scottsdale AZ
BReP-SNAP-I-46Self-Supervised Metal Artifact Reduction in X-Ray Computed Tomography by Joint Sinogram Completion and Image Refinement
L Yu*, Z Zhang, L Xing, Stanford Univ School of Medicine, Stanford, CA
BReP-SNAP-I-48Spectral Inconsistency Analysis On a CdTe Photon-Counting Detector
Binxiang Qi*, Hewei Gao, Tsinghua University, Haidian Dist, 11CN,
BReP-SNAP-I-58Variations in Radiomics Features of a Multi-Texture Phantom Introduced by Deep Learning Iterative Reconstruction Algorithms
N Baughan*, J P Cruz-Bastida, H Al-Hallaq, I Reiser, The University of Chicago, Chicago, IL
BReP-SNAP-I-59Reconstructing C-Arm Cone-Beam CT Knee Scans Using An Open-Source GPU-Based Toolbox
H Zhang1*, K Mueller2, R Fahrig3, A Maier4, M Levenston5, G Gold6, A Wang7, (1) Stanford University (2) Siemens Medical Solutions Inc. (3) Siemens Healthcare GmbH (4) University of Erlangen-Nuremberg (5) Stanford University (6) Stanford University (7) Stanford University, Stanford, CA
BReP-SNAP-M-7A Depthwise Separable Convolution Neural Network for Survival Prediction of Head & Neck Cancer
R Li1*, A Das2, N Bice1, P Rad2, A Roy2, N Kirby1, N Papanikolaou1, (1) University of Texas HSC SA, San Antonio, Texas, (2) The University of Texas at San Antonio
BReP-SNAP-M-11A Novel Kernel-Weighted Back-Projection Reconstruction Algorithm for Compton Camera Imaging
R Panthi1*, D Mackin1, S Peterson2, P Maggi3, J Polf3, S Beddar1, (1) The University of Texas M.D. Anderson Cancer Center, Houston, TX, (2) University of Cape Town, Rondebosch,ZA, (3) University of Maryland School of Medicine, Baltimore, MD
BReP-SNAP-M-15An Adversarial Machine Learning Framework and Biomechanical Model Guided Approach for Generating 3D Lung Tissue Elasticity From Low Dose End-Exhalation CT
A Santhanam1, B Stiehl1*, M Lauria1, I Barjaktarevic1, S Hsieh2, D Low1, (1) University of California, Los Angeles, Los Angeles, CA, (2) Mayo Clinic, Rochester, MN
BReP-SNAP-M-16Assessing Inter and Intrafraction Target Motion in Lung SBRT Using Deformable Image Registration
J Liang*, D Lack, Q Liu, R Sandhu, L Benedetti, C Stevens, D Yan, Beaumont Health, Royal Oak, MI
BReP-SNAP-M-17Assessing Longitudinal CT Perfusion Changes in Pancreas and Pelvic Node Tumors Treated with SBRT On Prospective Phase I Dose Escalation Trials
T Patton1*, A Santoso1, T Reinicke1, Y Vinogradskiy1, Q Diot1, C Fisher1, K Goodman2, B Jones1, (1) University of Colorado Anschutz Medical Campus, Aurora, CO, (2) Mount Sinai, New York, NY
BReP-SNAP-M-18Assessment of Texture Feature Robustness Using a Novel 3D-Printed Phantom
K Spuhler*, J Teruel, P Galavis, NYU Langone Health, New York, NY
BReP-SNAP-M-19Association of Lung CT Voxel-Based Radiomics Feature Map with Galligas PET Lung Ventilation Imaging
Z Yang*, K Lafata, X Chen, Y Chang, F Yin, Duke University, Durham, NC
BReP-SNAP-M-22Automatic Detection of Dental Artifact in a Fully-Automated Treatment Planning Workflow
S Hernandez*, C Sjogreen, S Gay, T Netherton, A Olanrewaju, C Nguyen, D Rhee, J Mendez, L Court, C Cardenas, MD Anderson Cancer Center, Houston, TX
BReP-SNAP-M-25Automatic Tumor and Multi-Organ Segmentation Technique in CT Based On Deep Learning for Radiation Therapy After Breast-Conserving Surgery
J Lee1*, H Cho1*, S Ye1, D Choi2, W Park2, H Kim2, W Cho2, H Kim2, (1) Seoul National University, Seoul, 41, KR, (2) Samsung Medical Center, Seoul, 41, KR (*J Lee and H Cho contributed equally to this work.)
BReP-SNAP-M-26Auto-Segmentation of Pelvic OARs On MRI Multi-Sequence Using An Fused-Unet
Zesen Cheng1,2, Tianyu Zeng1,2, Yimei Liu1, Lijuan Lai2, Xin Yang1*, Sijuan Huang1, (1) Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, 510060, China, (2) Department of Electronic and Information Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China
BReP-SNAP-M-27Beam-Energy and Depth-Of-Interaction Estimation in MV Imaging Using a Dual-Ended Readout
M Myronakis1*, R Berbeco1, (1) Department of Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute & Harvard Medical School, Boston, MA
BReP-SNAP-M-33Cascading Deep Multi-Label Network for CT Liver and Spleen Structure Segmentation: Learning From Imperfect Clinical Data
R Haq*, A Jackson, A Apte, M Montovano, A Wu, J Deasy, M Thor, Memorial Sloan-Kettering Cancer Center, New York, NY
BReP-SNAP-M-34CBCT Scatter Correction Using Monte Carlo Simulations and Deep Convolutional Neural Networks for Adaptive Proton Therapy
A Lalonde*, B Winey, J Verburg, H Paganetti, G Sharp, Massachusetts General Hospital and Harvard Medical School, Boston, MA
BReP-SNAP-M-37Combining Delta-Radiomics and Clinical Biomarkers Based On KNN-PCA Classification to Improve Treatment Outcome Prediction for Pancreatic Cancer
H Nasief1*, W Hall2, C Zheng3, S Tsai4, B Erickson5, X Li6, (1) Medical College of Wisconsin, Milwaukee, WI, (2) Medical College of Wisconsin, Milwaukee, WI, (3) University of Wisconsin Milwaukee, Milwaukee, WI, (4) Medical College of Wisconsin, Milwaukee, WI, (5) Medical College of Wisconsin, Milwaukee, WI, (6) Medical College of Wisconsin, Milwaukee, WI
BReP-SNAP-M-43Compton Scatter Imaging for Tumor Tracking - Initial Experiment with a Photon-Counting Detector
K Yang1*, Y Huang2, X Jia2, X Li1, B Liu1, (1) Harvard Medical School, Massachusetts General Hospital, Boston, MA, (2) The University of Texas Southwestern Medical Ctr, Dallas, TX,
BReP-SNAP-M-45CT-Based Convolutional-Neural-Network Segmentation of HCC Regions with Lung-Cancer-Based Transfer Learning
N Nagami12*, H Arimura2, J Nojiri3, R Nakano2, K Ninomiya2, M Ogata1, S Takita1, S Kitamura1, H Irie3, (1) Saga university hospital, Saga-shi, Saga, JP, (2) Kyushu University, Fukuoka, Fukuoka, JP, (3) Saga University, Saga-shi, Saga, JP,
BReP-SNAP-M-46CT-Based Radiomics Analysis: A New Imaging Biomarker in Chronic Obstructive Pulmonary Disease?
R Au1*, V Liu1, M Koo1, W Tan2, J Bourbeau3, J Hogg2, H Coxson2, M Kirby1, (1) Ryerson University, Toronto, Ontario, Canada, (2) Centre For Heart Lung Innovation, University Of British Columbia, Vancouver, British Columbia, Canada, (3) McGill University, Montreal, Quebec, Canada
BReP-SNAP-M-47CycleGAN Based Transfer Learning for Synthesizing CT Image From MR Image
W Li123*, T Bai1, D Nguyen1, A Owrangi1, S Kazemifar1, Y Li23, J Xiong2, Y Xie2, S Jiang1, (1) UT Southwestern Medical Center, Dallas, Texas, (2) Shenzhen Institutes Of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China, (3) Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, China
BReP-SNAP-M-52Deep Neural Network for Survival Analysis Using Intratumoral Radiomics and Dosiomics in the RTOG 0617 Clinical Trial
S Lee*, H Geng, H Zhong, Y Fan, M Rosen, Y Xiao, University of Pennsylvania, Philadelphia, PA
BReP-SNAP-M-63Dosimetric Predictors for Volumetric Liver Deformation and Change in Liver Function After SBRT for Hepatocellular Carcinoma: An In-Vivo Assessment Based On Longitudinal Magnetic Resonance Imaging
P Brodin*, A Correa De Sousa, H Nash, J Tang, W Tome, N Ohri, S Kalnicki, M Garg, C Guha, R Kabarriti, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
BReP-SNAP-M-65Evaluation of a Localized Correlation Based Predictive Metric as a Decision Making Tool in Online Image Guidance and Offline Adaptive Prostate Radiotherapy
A Gopal*, B Zhang, G Lasio, S Lee, B Yi, Univ. of Maryland School Of Medicine, Baltimore, MD
BReP-SNAP-M-69Evaluation of Two Different Systems for the Deformable Segmentation of a Lung Tumor in the Treatment of NSCLC Using SBRT
Y Cao1*, D Ghosh2, J Gomez3,A Singh4, H Malhotra5, (1) University at Buffalo, Buffalo, NY, (2) Williamsville North High School, Buffalo, NY, (3) Roswell Park Comprehensive Cancer Center, Buffalo, NY, (4)Roswell Park Comprehensive Cancer Center, Buffalo, NY, (5)Roswell Park Comprehensive Cancer Center, Buffalo, NY
BReP-SNAP-M-79GPU-Based Acceleration of MV-CBCT Simulation
M Shi1,2*, M Myronakis2, M Jacobson2, M Lehmann3, D Ferguson2, P Baturin4, P Huber3, R Fueglistaller3, T Harris2, I Valencia Lozano2, C Williams2, D Morf3, R Berbeco2, (1) University of Massachusetts Lowell, Lowell, MA, (2) Brigham and Women's Hospital & Dana Farber Cancer Institute & Harvard Medical School, Boston, MA, (3) Varian Medical Systems, Baden, Switzerland, (4) Varian Medical Systems, Palo Alto, CA
BReP-SNAP-M-81High-Precision Dosimetry in Yttrium-90 Radioembolization Through Post-Procedural CT Imaging of Radiopaque Microspheres in a Porcine Model
C Henry1*, M Strugari1,2, G Mawko1,3,4,6, K Brewer1,2,5,R Abraham4,7, A Syme1,3,6, (1) Department of Physics, Dalhousie University, Halifax, NS, CA, (2) Biomedical Translational Imaging Centre (BIOTIC), Halifax, NS, CA, (3) Department of Medical Physics, Nova Scotia Health Authority, Halifax, NS, CA, (4) Department of Diagnostic Imaging and Interventional Radiology, Dalhousie University, Halifax, NS, CA, (5) Department of Biomedical Engineering, Dalhousie University, Halifax, NS, CA, (6) Department of Radiation Oncology, Dalhousie University, Halifax, NS, CA, (7) ABK Biomedical Inc., Halifax, NS, CA
BReP-SNAP-M-84Image Processing System by Super-Resolution Using Deep Learning Leading to Exposure Dose Reduction
H Miyauchi1,2*, Y Tanaka1, K Takahashi1, M Nakano2, T Hasegawa3, M Hashimoto3, (1) Kitasato University Graduate School of Medical Sciences, Sagamihara, Kanagawa, JP, (2) Cancer Institute Hospital of JFCR, Koto-ku, Tokyo, JP, (3) Faculty of Allied Health Sciences, Kitasato university, Sagamihara, Kanagawa, JP
BReP-SNAP-M-94Interfractional Motion Is Not a Predictor of Delivery Accuracy in Liver Stereotactic Body Radiation Therapy
S Kuznetsova1*, R Sinha2, N Ploquin2, K Thind2, (1) University of Calgary, Calgary, AB, CA, (2) Tom Baker Cancer Centre, Calgary, AB, CA
BReP-SNAP-M-100Markerless Lung Tumour Tracking in the Beam-Eye-View for Modern VMAT Treatments
R Tjang1, J Booth2,3, C Shieh1, V Caillet1,2, P Keall1, D Nguyen4,1*, (1) ACRF Image-X Institute, The University of Sydney, Sydney, Australia (2) Northern Sydney Cancer Center, St Leonard, NSW, Australia (3) School of Physics, The University of Sydney, Australia (4) School of Biomedical Engineering, University of Technology Sydney
BReP-SNAP-M-101Monte Carlo Investigation of the Radio-Enhancement Effects Produced by a Gadolinium-Based Nanoparticle (AGuIX)
R Maschmeyer1*, H Byrne1, A McNamara2, G Le Duc3, O Tillement3,4, F Lux3,4,5, Z Kuncic1, (1) The University of Sydney, Sydney, Australia, (2) Massachusetts General Hospital & Harvard Med. Sch., Boston, MA, (3) NH TherAguix, Lyon, France, (4) Universite Claude Bernard Lyon 1, Lyon, France, (5) Institut Universitaire de France, France
BReP-SNAP-M-108Off-Line Treatment Monitoring of Head and Neck Radiotherapy Using Daily Cone-Beam Computed Tomography: A Preliminary Study
S Lee1*, B Zhang1, G Lasio1, A Gopal1, I Lee2, H Xu1, S Chen1, B Yi1, (1) University of Maryland School of Medicine, Baltimore, MD, (2) University of Maryland, College Park, MD
BReP-SNAP-M-109On the Impact of Image Rotation On Quantitative Textural Features in Radiomics Analysis
H Bagher-Ebadian1*, I Chetty1, (1) Henry Ford Health System, Detroit, MI
BReP-SNAP-M-115Prediction of Radiation Pneumonitis After Lung Stereotactic Body Radiation Therapy Using Dosiomics Features: A Retrospective Multi-Institutional Study
T Adachi1,2*, M Nakamura1,2, T Shintani2, T Mitsuyoshi2,3, R Kakino1,2, T Ogata3, H Tanabe3, T Ono2, H Hirashima2, T Sakamoto4, M Kokubo3, Y Matsuo2, T Mizowaki2, (1) Department of Information Technology and Medical Engineering, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan, (2) Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan, (3) Department of Radiation Oncology, Kobe City Medical Center General Hospital, Hyogo, Japan(4) Department of Radiation Oncology, Kyoto Katsura Hospital, Kyoto, Japan
BReP-SNAP-M-119Quantification of Lung Ventilation Using Voxel-Based Delta Radiomics Extracted From Thoracic 4DCT
X Chen1*, K Lafata2, Z Yang3, F Yin4, (1) ,Durham, NC, (2) Duke University, Durham, NC, (3) Duke University, Durham, NC, (4) Duke University, Durham, NC
BReP-SNAP-M-120Quantum-Inspired Approach to Predicting Geometric Changes in Head and Neck Cancer
J Pakela*, R Ten Haken, D McShan, M Matuszak, I El Naqa, University of Michigan, Ann Arbor, MI
BReP-SNAP-M-124Real Time Monitoring of Anatomy During IMRT and VMAT Breast Radiotherapy Using EPID Imaging
B Zwan1*, C Stanton1, H Byrne2, A Briggs, J Booth1, P Keall2, (1) Northern Sydney Cancer Centre, Royal North Shore Hospital, Sydney, NSW, AU, (2) The University of Sydney, Sydney, NSW, AU.
BReP-SNAP-M-134Segmentation of Invisible Target Volume with Estimated Uncertainties for Post-Operative Prostate Cancer Radiotherapy
A Balagopal*, D Nguyen, M Lin, H Morgan, N Desai, R Hannan, A Garant, Y Gonzalez, A Sadeghnejad Barkousaraie, S Jiang, UT Southwestern Medical Center, Dallas, TX
BReP-SNAP-M-143Tumor Motion in Locally Advanced Lung Cancer: A Study of 46 Patients with 4DCT and 4DCBCT
L Su1*, N O'donnell2, K Ding1, R Hales1, (1) Johns Hopkins University, Baltimore, MD, (2) Johns Hopkins Hospital
BReP-SNAP-M-146Uncertainty-Aware Reconstructed Image Correction for Proton Computed Tomography Using Bayesian Deep Learning
Y Nomura1*, S Tanaka1, J Wang1, H Shirato1, S Shimizu1, L Xing1,2, (1) Hokkaido University, Sapporo, Hokkaido, Japan, (2) Stanford University, Palo Alto, CA
BReP-SNAP-T-12A Method for Automatic Optimization of Breast Electronic Tissue Compensation Treatment Plans Based On the Breast Radius and Separation
A Podgorsak1,2*, L Kumaraswamy3, (1) University at Buffalo, Buffalo, NY, (2) Roswell Park Comprehensive Cancer Center, Buffalo, NY, (3) Novant Health, Winston-Salem, NC
BReP-SNAP-T-13A Monte Carlo and Film-Based Methodology for Direct EPID Image-To-Dose Calibration
J Renaud*, B Muir, National Research Council Canada, Ottawa, ON
BReP-SNAP-T-21Accuracy of Dose-Volume Metric Calculation for Small Volume Radiosurgery Targets
D Stanley1*, H Liu2, D Bridges1, E Thomas1, R Cardan1,J Fiveash1, R Popple1, (1) The University of Alabama at Birmingham, Birmingham, AL, (2) Thomas Jefferson University, Philadelphia, PA
BReP-SNAP-T-29Beam Modeling for a Novel Convergent X-Ray Treatment Machine
D Mirkovic*, D Bartkosk, R Tailor, J Moradi Kurdestany, M Salehpour, UT MD Anderson Cancer Center, Houston, TX
BReP-SNAP-T-48Dosimetric Evaluation of Static and Rotating Gamma Ray Systems for Intracranial SRS/SRT
Q Jiang 1*, A Eldib2, L Chen3, D wu4, B Wang5, S Li6, C Miyamoto7, J Li8, B Nguyen9, C Ma10, (1) The First Affiliated Hospital of Chongqing Medical University, Chongqing, China, (2) Fox Chase Cancer Center, Philadelphia, PA (3) Fox Chase Cancer Center, Philadelphia, PA (4) The People`s Hospital of Guangxi Zhuang Autonomous Region ,Guangxi, China (5) Temple University Hospital, Philadelphia, PA, (6) Temple University Hospital, Philadelphia, PA (7) Temple University, Philadelphia,(8) ,Huntingdon Valley, PA, (9) Prowess Inc., Concord, CA, (10) Fox Chase Cancer Center, Philadelphia, PA
BReP-SNAP-T-50Dosimetric Sensitivity to Sources of Uncertainties for Liver Cancer and Trigeminal Neuralgia Treated with Ablative Radiosurgery
M Liu1*, J E Cygler2,1,3, J Doody2, S Malone2, J Pantarotto2, D Tiberi2, E Vandervoort2,1,3, (1) Carleton University, Ottawa, ON, CA, (2) The Ottawa Hospital Cancer Centre, Ottawa, ON, CA, (3) University of Ottawa, Ottawa, ON, CA
BReP-SNAP-T-55Electromagnetic Tracking as a Quality Assurance Tool for Complex Intracavitary and Interstitial Cervix Brachytherapy Implants
I Kolkman-Deurloo1*, M Doorn Van1, L Heerden Van1, J Schiphof-godart1, D Schaart2, M Hoogeman1, (1) Erasmus MC - Cancer Institute, Rotterdam, NL, (2) Delft Univ of Technology, Delft, NL
BReP-SNAP-T-56Enhancing Efficiency of a Treatment Planning Process for Mixed Beam Radiotherapy Towards Clinical Usability
S Mueller1*, A Schoch1, N Torelli1, A Duetschler1, M K Fix1, D Henzen1, A Joosten1, D M Aebersold1, M F M Stampanoni2, P Manser1, (1) Inselspital, Bern University Hospital, and University of Bern, Bern, CH, (2) ETH Zurich and PSI, Villigen, CH
BReP-SNAP-T-60Estimation of Cable Leakage of Ionization Chamber in Megavoltage Photon Beam by Monte Carlo Simulation and Theoretical Analysis
R Yamauchi1,2*, M Igari3, Y Kasai4, M Hariu5, Y Suda6,2, T Kawachi7, T Katayose7, N Mizuno1, R Miyasaka7, H Saitoh2, (1) St. Lukes International Hospital ,Tokyo, JP, (2) Tokyo Metropolitan University, Tokyo, JP, (3) Saitama Medical University International Medical Center, Saitama, JP, (4) National Hospital Organization Tokyo National Hospital, Tokyo, JP, (5) Saitama Medical University Saitama Medical Center, Saitama, JP, (6) Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, JP, (7) Chiba Cancer Center, Chiba, JP,
BReP-SNAP-T-61Evaluation of Electromagnetic Catheter Tracking in HDR Prostate Brachytherapy for Different Imaging and Treatment Environments
C P Joshi1,2*, C Pinter3, A Lasso3, E Lugez3, T Vaughan3, C Shenfield1,2, G Fichtinger3, (1) Cancer Center of Southeastern Ontario, Kingston Health Sciences Centre, Kingston, ON, Canada, (2) Departments of Oncology and Physics, Queens University, Kingston, ON, Canada (3) School of Computing, Queens University, Kingston, ON, Canada
BReP-SNAP-T-62Examining the Capability of Versa HD to Accurately Treat Single-Isocenter Multi-Lesion Brain Patients
R McGurk1*, E Schreiber1, M Dance1, S Stathakis2, K Zourari3,4, G Kalaitzakis3,5, E Zoros3,4, E Pappas3,6, B Read7, P Barry7, N Papanikolaou2, S Das1, P Mavroidis1, (1) University of North Carolina at Chapel Hill, Chapel Hill, NC, (2) Mays Cancer Center - MD Anderson Cancer Center, San Antonio, TX, (3) 3RTsafe P.C., Athens, Greece, (4) Medical Physics Laboratory, Medical School, National and Kapodistrian University of Athens, Athens, Greece, (5) Department of Medical Physics, University of Crete, Heraklion, Greece, (6) Radiology & Radiotherapy Sector, Department of Biomedical Sciences, University of West Attica, Athens, Greece, (7) Oncology Solutions, Elekta AB
BReP-SNAP-T-68FLASH Gun-Ramp Characteristics and Monitor Chamber Performance Using An Elekta Linear Accelerator
J Vadas*, R Halford, D Yan, G Wilson, C Stevens, M Snyder, William Beaumont Hospital, Royal Oak, MI
BReP-SNAP-T-75Hybrid Direct Aperture Optimization for VMAT, Dynamic Trajectory Radiotherapy (DTRT) and Dynamic Mixed Beam Radiotherapy (DYMBER)
S Mueller1*, N Torelli1, A Duetschler1, O Elicin1, D M Aebersold1, M F M Stampanoni2, M K Fix1, P Manser1, (1) Inselspital, Bern University Hospital, and University of Bern, Bern, CH, (2) ETH Zurich and PSI, Villigen, CH
BReP-SNAP-T-85Improving Uncertainty in GammaPod Dose Through the Use of ND,w and IAEA TRS 483
B Yi*, S Becker, Univ. of Maryland School Of Medicine, Baltimore, MD
BReP-SNAP-T-95Laser-Like X-Ray Sources for a New Stereotactic Radiotherapy Paradigm
E Simiele*, D Breitkreutz, D Capaldi, L Skinner, Stanford University, Stanford, CA
BReP-SNAP-T-97Lesion Specific Asymmetric Rotational Margins for Targets Remote From Isocenter
C Dial*, V Sarkar, A Paxton, G Nelson, B Salter, University of Utah, Salt Lake City, UT
BReP-SNAP-T-99Margin Verification for Hypofractionated Prostate Radiotherapy Using a Novel Dose Accumulation Workflow and Iterative CBCT
M Studenski*, R Delgadillo, Y Xu, J Both, K Padgett, M Abramowitz, A Dal Pra, A Pollack, N Dogan, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
BReP-SNAP-T-101Measurements of LET, Nuclear Halo, Energy and Angular Spectra of a Proton Spot Scanning Beam with a Hybrid Semiconductor Detector
S Charyyev1*, C Chang2, A Stanforth3,4, J Harms5, C Oancea6, L Lin7, (1) Emory University, Atlanta, GA, (2) Emory University, Atlanta, GA, (3) Emory University, Atlanta, GA, (4) Georgia Institute of Technology, Atlanta, GA, (5) Emory University, Atlanta, GA, (6) ADVACAM, Prague, CZ, (7) Emory Proton Therapy Center, Atlanta, GA
BReP-SNAP-T-109Patient-Specific Partial Volume Corrections Using a 3D Printed Anthropomorphic Head and Neck Phantom
D Adam*, I Marsh, T Bradshaw, P Hill, B Cox, J Grudzinski, P Harari, B Bednarz, University of Wisconsin, Madison, WI
BReP-SNAP-T-113Portal Dosimetry Scripting Application Programming Interface (PDSAPI) for Winston Lutz Test
Y Hao, M Schmidt, Y Wu, M Yaqoub*, N Knutson, Washington University School of Medicine, St Louis, MO
BReP-SNAP-T-117Prioritizing Patient-Specific Geometry: Beam Angle Optimization in Stereotactic Radiosurgery
T Mann*, N Ploquin, K Thind, Tom Baker Cancer Center/University of Calgary, Calgary, AB
BReP-SNAP-T-127Surface Area Matters: The SRS/SRT Intermediate Dose Spill Depends On PTV Surface Area (not PTV Volume)
D Desai1, I Cordrey2*, E Johnson3, S Srinivasan4, H Elasmar5, (1) Memorial Hospital, Hixson, TN, (2) Hillsdale Wildflower Refuge, Cookeville, TN, (3) Univ Kentucky Medical Ctr, Lexington, KY, (4) Memorial Health Care System, Hixson, TN, (5) Memorial Health Care System, Chattanooga, TN
MO-CD-TRACK 1-4Production, SPECT Imaging, and Initial Evaluation of 67Cu for Theranostic Applications
M Merrick1*, D Rotsch2, A Tiwari1, J Nolen2, T Brossard2, J Song2, T Wadas1, J Sunderland1, S Graves1, (1) University of Iowa, Iowa City, IA, (2) Argonne National Laboratory, Lemont, IL
MO-EF-TRACK 3-2Development of a Megavoltage Photon FLASH Radiotherapy Platform at TRIUMF
N Esplen1*, L Egoriti2, A Gottberg3, M Bazalova-Carter1, (1) University of Victoria, Victoria, BC, (2) University Of British Columbia, Vancouver, BC, (3) TRIUMF, Vancouver, BC
MO-EF-TRACK 3-3Investigation of a Simple Calorimeter Design for the Dosimetry of Ultra-High Pulse Dose Rate (FLASH) Electron Beams
M McEwen1, A Bourgouin2*, A Schueller3, (1) National Research Council, Ottawa, ON, CA, (2) Carleton University, Ottawa, (3) Physikalisch-Technische Bundesanstalt, Braunschweig
MO-EF-TRACK 3-4ROAD: ROtational Direct Aperture Optimization with a Decoupled Ring-Collimator for FLASH
Q Lyu1*, R Neph1, D O'Connor2, D Ruan1, S Boucher3, K Sheng1, (1) UCLA School of Medicine, Los Angeles, CA, (2) University of San Francisco, San Francisco, CA, (3) Radiabeam Technologies, Santa Monica, CA
MO-EF-TRACK 3-7Implementation and Dosimetry of EFLASH Radiotherapy
C Mendez1*, T Karan1, M Petric1, A Bergman1, D Ta1, J Sweeney1, A Kyle2, J Baker2, C Duzenli1, A Minchinton2, (1) BC Cancer, Vancouver, BC (2) Bc Cancer Research Centre, Vancouver, BC
MO-EF-TRACK 3-9A First Step Toward Dose Calibration in FLASH Electron Beams
J Polf1*, F Bateman2, S Mossahebi1, P Sabouri1, M MacFarlane1, R Tosh2, (1) University of Maryland School of Medicine, Baltimore, MD, (2) NIST, Gaithersburg, MD
MO-F-TRACK 1-5Functional Changes of Lung in Young E-Cigarette Users Identified by Hyperpolarized Gas MRI
K Qing1,2*, H Mu 2,I Vergalasova1, X Feng2,3, H Mu 2,NJ Tustison 2, JF Mata 2, JP Mugler, III 2, YM Shim 2, (1) Rutgers Cancer Institute of New Jersey, New Brunswick, NJ (2) University of Virginia, Charlottesville, VA (3) Carina Medical, LLC, Lexington, KY
MO-F-TRACK 2-3Intensity-Based Thresholding of Probability Maps in Deep-Learning-Based Segmentation
N Bice*, N Kirby, R Li, T Bahr, J Rembish, M Agarwal, S Stathakis, M Fakhreddine, UT Health San Antonio, San Antonio, TX
MO-F-TRACK 2-4OARnet: Organs-At-Risk Delineation in Head and Neck CT Images
M H Soomro*, H Nourzadeh, V Leandro Alves, W Choi, J Siebers, University of Virginia, Charlottesville, VA
MO-F-TRACK 2-6Multi-Modality Convolutional Neural Network for Automatic Lung Tumor Segmentation
S Wang*, L Yuan, R Mahon, E Weiss, Virginia Commonwealth University, Richmond, VA
PO-GeP-I-2A 5D Motion Phantom for Simulating Simultaneous Cardiac and Respiratory Motions
X Wu*, S Goddu, A Curcuru, H Gach, H Li, D Yang, Washington University in St. Louis, St. Louis, MO
PO-GeP-I-3A Body Mass Index-Based Method for Size-Specific Dose Estimates (SSDE) in Adults
D Yan1,2*, B Chen2, W Lu1, J Qiu1, L Shi1, (1) Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, CN (2) Hwamei Hospital, university Of Chinese Academy Of Sciences, Ningbo, CN
PO-GeP-I-6A Deep Learning-Based End-To-End CT Reconstruction Method
K Lu*, L Ren, F Yin, Duke University, Durham, NC
PO-GeP-I-8A Five Year Review of Established Local DRLs for Adult CT Examinations in Nova Scotia
S Schofield1, E Tonkopi1,2*, (1) Nova Scotia Health Authority, Halifax, NS, CA, (2) Dalhousie University, Halifax, NS, CA
PO-GeP-I-10A Method for Assessing Confidence of Dual-Contrast Photon-Counting CT Material Quantification
C Leary*, T Griglock, Oregon Health & Science Univ, Portland, OR
PO-GeP-I-12A New Approach for Coronary Calcium Scoring at Reduced Dose with Lower Tube Voltage -A Simulation Study Based On Reference Image Acquisitions
Y Zhou*, D Zhang, W Paz, Cedars-Sinai Medical Center, Los Angeles, CA
PO-GeP-I-15A Phantom-Based Assessment of Low-Contrast Performance Comparing Iterative Reconstruction Algorithms in CT
S Leon*, C Schaeffer, E Olguin, M Arreola, University of Florida, Gainesville, FL
PO-GeP-I-18A Robust Real-Time Acceleration and Reconstruction Scheme for Rapid MRI Using Principal Component Analysis
M Wright*, B Dietz, E Yip, J Yun, B G Fallone, K Wachowicz, Medical Physics, University of Alberta, Cross Cancer Institute, Edmonton, AB, CA
PO-GeP-I-19A Semi-Automatic Cardiac Substructure Segmentation Platform for Radiotherapy Planning CT
E Zhang1*, J Li2, R Timmerman3, P Alluri4 , M Chen5, W Lu6, X Gu7, (1) The University of Texas Southwestern Medical Ctr, Dallas, TX, (2) Guangdong General Hospital, Guangzhou, CN, (3) UT Southwestern Medical Center, Dallas, TX, (4) UT Southwestern Medical Center, Dallas, TX, (5) UT Southwestern Medical Center, Dallas, TX, (6) UT Southwestern Medical Center, Dallas, TX, (7) UT Southwestern Medical Center, Dallas, TX
PO-GeP-I-20A Sparse Sampling RF Pulse Sequence for 3D 13C Metabolic MR Chemical Shift Imaging
J-X Wang1*, (1) University of Alabama at Birmingham, Birmingham, AL
PO-GeP-I-21A Study On Fast CBCT
J Dai1, M Li2*, (1) National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, Beijing, CN, (2) ,
PO-GeP-I-22Accuracy of Dual-Energy CT Virtual Non-Contrast/unenhanced and Material Density Images: A Phantom Study
B Li*, M Pomerleau, A Gupta, J Soto, S Anderson, Boston University Medical Center, Boston, MA
PO-GeP-I-24Accurate 3D Stopping-Power Ratio Estimation by Statistical Image Reconstruction From Dual Energy CT Sinogram Data Exported From a Commercial Multi-Slice CT Scanner
M Medrano1*, T Ge1, D Politte2, J Williamson2, T Zhao2, R Liu2, R Liao1, M Porras-Chaverri4, B Whiting3, J O'Sullivan 1 (1) Washington University in St. Louis, St. Louis, MO,(2) Washington University School of Medicine, St. Louis, MO, (3) University of Pittsburgh, Pittsburgh, PA, (4) Universidad de Costa Rica, San Jose, SJ
PO-GeP-I-28Altered BNST-Insula Functional Connectivity in Pediatric Bipolar Disorder
W Cao1, Y Guo1, D Cui1, Q Jiao1*, W Gao2, L Su3, G Lu4, (1)Department of Radiology, Shandong First Medical University &Shandong Academy of Medical Sciences, Tai'an, 271016, China, (2) Department of Child Psychology, The Children's Hospital, Zhejiang University School of Medicine, Zhejiang Hangzhou, 310003, China, (3) Mental Health Institute of the Second Xiangya Hospital, Key Laboratory of Psychiatry and Mental Health of Central South University, Changsha, 410011, China, (4) Department of Medical Imaging, Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, 210002, China,
PO-GeP-I-31An Investigation of Using a Single CT Image to Assess Size-Specific Dose Estimates (SSDE)
A Abuhaimed1*, C Martin2, (1) King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia, (2) University of Glasgow, Glasgow, UK
PO-GeP-I-38Automatic CT Air Bubble Artifact Detection in Routine QC Images
A Verones1,2*, S Wong3, J Cheung4, T Lee4, T Bjarnason1,5,6, (1) University of British Columbia, Vancouver, CA, (2) Advanced Quality Systems, Inc., Vancouver, CA, (3) Tuen Mun Hospital, HK, (4) Prince of Wales Hospital, HK, (5) University of British Columbia, Okanagan, Kelowna, CA, (6) Interior Health, Kelowna, CA
PO-GeP-I-43Calculation of Radiation Doses to Patients Undergoing Interventional Procedures by Monte Carlo Simulations
HW Nam, MY Lee, HJ Na, KP Kim*, Kyung Hee University, Yongin-si,Gyeonggi,KR
PO-GeP-I-45CBCT-Based Radiomics of Prostate Cancer for Predicting Patient Outcome to Radiotherapy
R Delgadillo*, B Spieler, J Ford, D Kwon, F Yang, M Studenski, K Padgett, M Abramowitz, R Stoyanova, A Pollack, N Dogan, University of Miami, Miami, FL
PO-GeP-I-50Chemical Exchange Saturation Transfer MRI: Sensitive to Intracellular PH Change Over Time in a Rat Model of Brain Cancer
M Mozaffari*, N Nystrom, A Li, M Bellyou, T Scholl, R Bartha, Robarts Research Institute, Western University, London, ON, Canada
PO-GeP-I-51Clinical Decision Making in CT: Risk Assessment Comparison Across 12 Risk Metrics in Patient Populations
F Ria*, W Fu, J Hoye, P Segars, A Kapadia, E Samei, RAI Labs, Duke University Health System, Durham, NC
PO-GeP-I-55CNR Dependence On Spatial Resolution and Subject Contrast in Phase Contrast CT
B Nelson*, S Leng, C McCollough, Mayo Clinic, Rochester, MN
PO-GeP-I-57Comparison and Validation of Noise Magnitude Estimation Methods From Patient CT Images
F Ria*, T Smith, E Abadi, J Solomon, E Samei, Duke University Health System, Durham, NC
PO-GeP-I-59Comparison of IMAR and AiMAR Techniques for Metal Artifact Reduction in CT-Guided Microwave Ablations
M Jacobsen*, E Thompson, X Liu, B Odisio, E Cressman, R Layman, UT MD Anderson Cancer Center, Houston, TX
PO-GeP-I-65Correlation of Body Mass Index (BMI) and Water Equivalent Diameter (Dw) Used for Size-Specific Dose Estimates (SSDE)
A Abuhaimed1*, C Martin2, (1) King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia, (2) University of Glasgow, Glasgow, UK
PO-GeP-I-66Cross-Modality Esophagus Segmentation Using Physics-Based Data Augmentation
S Alam1*, T Li2, S Zhang3, D Lee4, P Zhang5, S Nadeem6, (1), (2), (4), (5), (6) Memorial Sloan Kettering Cancer Center, New York, NY, (3) Peking University Cancer Hospital & Institute, Beijing, China
PO-GeP-I-67CT Exam Alert Level Setting, Evaluation, and Case Examples
R Lamoureux*, D Sandoval, G Chambers, R Selwyn, University of New Mexico, Albuquerque, NM
PO-GeP-I-69CT-Derived Pulmonary Perfusion
E Castillo1*, R Castillo2, Y Vinogradskiy3, G Nair1, I Grills1, T Guerrero1, C Stevens1, (1) William Beaumont Hospital, Royal Oak, MI, (2) Emory Univ, Atlanta, GA, (3) University of Colorado Denver, Aurora, CO
PO-GeP-I-70DAP Measurements in Dental/Maxillofacial Cone Beam CT
E Gingold1*, A Stratis2, D Mihailidis3, (1) Thomas Jefferson University, Philadelphia, PA, (2) KU Leuven/UZ Leuven, Leuven, BE, (3) University of Pennsylvania, Philadelphia, PA
PO-GeP-I-73Deep-Learning-Based CT ImageStandardization to Improve Stability of Radiomics Features in Non-Small CellLung Cancer
J Zhang1*, M Selim2, M Brooks3, B Fei4, G Zhang5, J Chen6, (1) University of Kentucky, Lexington, KY, (2) University Of Kentucky, ,,(3) University Of Kentucky, ,,(4) University of Texas (UT) at Dallas and UT Southwestern Medical Center, Richardson, TX, (5) Uthealth, ,,(6) University Of Kentucky,
PO-GeP-I-74Dental and Maxillofacial Cone Beam Computed Tomography Dose Index in Full-Fan and Full-Scan Mode
S Jia*, L Zhang, Y Xing, H Gao, Tsinghua University, Haidian Dist, 11CN,
PO-GeP-I-75Design and Fabricating Diagnostic X-Ray Spectrum Unfolding Systems Based On HPGe Detector and CR Film
A Mahjoob1, S Sina2*, R Faghihi1, (1)Nuclear Engineering department, School of Mechanical Engineering, Shiraz University, Shiraz, Iran(2) Radiation Research Center, Shiraz University, Shiraz, Iran
PO-GeP-I-79Developing a Novel Approach for ECG Classification Using Modified Local Binary Patterns
e zeraatkar1*, M Gholamian2, N Jahani3, M Yazdi4, (1) Shiraz Urban Railway Organozation,Shiraz,IR (2) Shiraz University, Shiraz Iran,(3) Green Land Shiraz Eksir Chemical and Agricultural Industries Cimpant,Shiraz,Iran(4)Shiraz University,Shoraz Iran
PO-GeP-I-85Development of An Optical/micro-CT Specimen Imaging System Optimized for Breast Conserving Surgery
B Maloney1*, S Streeter1, M Jermyn1, M Gesner2, P Travis2, J Kempner2, J Meganck2+, K Paulsen1,3,4, B Pogue1,3,4, (1) Thayer School of Engineering, Dartmouth College, Hanover, NH, (2) PerkinElmer, Hopkinton, MA, (3) Geisel School of Medicine, Dartmouth College, Hanover, NH, (4) Norris Cotton Cancer Center, Lebanon, NH (+) Currently: Boston Scientific, Marlborough, MA
PO-GeP-I-87Digital Whole Slides-Based Deep Learning for the Prediction of Treatment Outcome in Head and Neck Squamous Cell Carcinoma
H Yu1, D Jing2, W Lu1, W Lu1, J Qiu1, L Shi1*, (1) Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, CN, (2) Xiangya Hospital, Central South University, Changsha, CN
PO-GeP-I-93Dose Comparison of Elekta Infinity 4D Symmetry Scan Versus Cone Beam CT
I Koistinen1*, M Koistinen2, (1) University of Maine, Orono, ME, (2) CHEM Center for Rad Oncology, Millis, MA
PO-GeP-I-99Effect of Contrast Agent Administration On Water Equivalent Diameter in CT
B Viggiano*, T Szczykutowicz, University Wisconsin-Madison, Madison, WI
PO-GeP-I-102Enhanced 4DCT Combined with Image Histology Screening and Quantitative Analysis of Left Ventricular Myocardial Function Changes and Stability Characteristics
M Su*, G Gong, Y Yin, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, CN
PO-GeP-I-106Estimation of 3D Imaging Dose for KV-MV-STR CBCT
M Shi1,2*, M Jacobson2, M Myronakis2, D Ferguson2, M Lehmann3, P Baturin4, T Harris2, P Huber3, R Fueglistaller3, I Valencia Lozano2, C Williams2, D Morf3, R Berbeco2, (1) University of Massachusetts Lowell, Lowell, MA, (2) Brigham and Women's Hospital & Dana Farber Cancer Institute & Harvard Medical School, Boston, MA, (3) Varian Medical Systems, Baden, Switzerland, (4) Varian Medical Systems, Palo Alto, CA
PO-GeP-I-107Estimation of X-Ray Energy Spectrum for CT Scanner From Percentage Depth Dose Measurement
Y Hasegawa1*, A Haga1, D Sakata2, Y Kanazawa1, M Tominaga1, M Sasaki1, T Imae3, K Nakagawa3, (1) University of Tokushima, Tokushima, JP, (2) National Institute of Radiological Sciences, Chiba, JP, (3) The University of Tokyo Hospital, Tokyo, JP
PO-GeP-I-112Evaluation of Deep Learning Based Image Reconstruction for Dual Energy CT Gout Imaging
E Nett*, M Dimoff, GE Healthcare, Waukesha, WI
PO-GeP-I-116Evaluation of Machine Learning Algorithms Performance for the Classification of Euthymic Pediatric Bipolar Disorder and Healthy Adolescents From Resting-State FMRI Data
T Wang1, Y Guo2, Q Jiao3*, W Cao4, D Cui5, W Gao6, L Su7, G Lu8, (1) ,,,(2) Shandong First Medical University, ,,(3) Shandong First Medical University, Taian, 37, CN, (4) Shandong First Medical University &Shandong Academy of Medical Sciences, Tai'an, 37, CN, (5) Shandong First Medical University, Taian, 37, CN, (6) Zhejiang University School of Medicine, ,,CN, (7) Key Laboratory of Psychiatry and Mental Health of Central South University, ,,CN, (8) Clinical School of Medical College, Nanjing University, ,,CN
PO-GeP-I-119Evaluation of Synthetic CT Generation From CBCT Using a Deep Learning Model
A Haidari1,2*, D Granville2, E Ali1,2, (1) Carleton University, Ottawa, ON, CA, (2) The Ottawa Hospital Cancer Centre, Ottawa, ON, CA
PO-GeP-I-120Fast DTI Using Deep Learning Based On Cartesian and Non-Cartesian Undersampling Schemes
Z Gao1*, T Arsenault2, Z Chang3, (1) Duke Kunshan University, Suzhou, Jiangsu, China (2) Duke University, Durham, NC (3) Duke University Medical Center, Durham, NC
PO-GeP-I-123Feasibility of Using Average Intensity Projection of 4D In-Treatment CBCT for Patient Setup Verification
J Kim*, C Hong, K Keum, J Kim, Yonsei University College of MedicineSeoulKR
PO-GeP-I-127Gray Matter-Based Radiomics and Machine Learning for the Diagnosis of Attention-Ddeficit/Hyperactivity Disorder
S Zhao1*, Z Mu2, H Zhao3, J Qiu3, W Lu3, W Lu3, L Shi3, (1) Beijing Anding Hospital, Capital Medical University, Beijing, CN, (2) The Second Affiliated Hospital Of Shandong First Medical University, Taian, CN, (3) Shandong First Medical University & Shandong Academy Of Medical Sciences, Taian, CN
PO-GeP-I-128Heel Effect and Its KVp Dependence in Mammography
V Garcia*, C Stallcup, W Wang, University of Oklahoma Health Science Center, Oklahoma City, OK
PO-GeP-I-133Image Quality in the Slice-Plane of Half-Reconstructed Computed Tomography in Filtered Back Projection and Iterative Reconstruction Methods
N Tsuda1*, K Mitsui2, S Oda3, N Tanaka4, H Aibe5, (1) Division of Radiology, Saga-ken Medical Centre Koseikan, Saga-shi, ,JP, (2) Division of Radiology, Saga-ken Medical Centre Koseikan, Saga-shi, ,JP, (3) Division of Radiology, Saga-ken Medical Centre Koseikan, Saga-shi, ,JP, (4) Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Fukuoka-shi, ,JP, (5) Department of Radiology, Saga-ken Medical Centre Koseikan, Saga-shi, ,JP
PO-GeP-I-136Impact of Low Contrast Objects On a PET Continuous Bed Motion Data Driven Gating Algorithm
J Meier*, O Mawlawi, MD Anderson Cancer Ctr., Houston, TX
PO-GeP-I-138Impact of Scanner Speed On the Rate of Radiologist Complaint of Motion Artifact On Pediatric Body CT
M Lipford*, T Szczykutowicz, University Wisconsin-Madison, Madison, WI
PO-GeP-I-139Improvement of Image Quality Using Image-Domain Multi-Material Decomposition Framework for Dual-Energy CT
H Lee*, H Kim, S Choi, Yonsei University, Wonju, GangwonKR,
PO-GeP-I-140Influence of Water Equivalent Diameter (Dw) Variability Inside the Scan Area On Size-Specific Dose Estimates (SSDE)
A Abuhaimed1, C Martin2*, (1) King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia, (2) University of Glasgow, Glasgow, UK
PO-GeP-I-141Initial Empirical Investigation of Photon Counting Circuits Based On Polycrystalline Silicon TFTs
AK Liang*, M Koniczek, Y El-Mohri, Q Zhao, LE Antonuk, University of Michigan, Ann Arbor, MI
PO-GeP-I-143Inter-Scanner T1 and T2 Mapping Evaluation Using Multiple MRI Phantoms at 3T
J Yu*, S Fahrenholtz, Y Zhou, W Sensakovic, A Panda, Mayo Clinic, Phoenix, AZ
PO-GeP-I-145Left Ventricular Assist Device (LVAD) Artifacts in Digital Radiography
J Wells*, L Washington, E Samei, Duke University Medical Center, Durham, NC
PO-GeP-I-147Machine Learning Based On CT Radiomic Features Can Predict Residual Tumor From Radiation Changes in Head and Neck Cancer Patients Treated with Definitive Chemoradiotherapy
E Florez*, T Thomas, C M. Howard, H Khosravi, J Storrs, S Lirette, A Fatemi, University of Mississippi Medical Center, Jackson, MS
PO-GeP-I-148Matching Convolution Kernels and Iterative Reconstruction for Quantitative Accuracy and Noise Power Spectrum in Dual-Layer and Dual-Source Spectral CT
G Anthony*, Y Liang, Indiana University, Indianapolis, IN
PO-GeP-I-149Metal Artifact in CBCT and the Impact On Dental Implant Planning
A Ismail, N L Ford*, University of British Columbia, Vancouver, BC, CA
PO-GeP-I-150Metal Artifact Reduction Algorithms for CT in the Trauma Setting: Do They Take Too Long?
S Rose*, M Lipford, N Stabo, C Bartels, M Lubner, T Szczykutowicz, University Wisconsin-Madison, Madison, WI
PO-GeP-I-151Modification of the Vendor Computed Tomography Stray Radiation Data Using Pediatric Patient Parameters for Shielding Design
Weiyuan Wang*, Victor Garcia, University of Oklahoma Health Science Center, Oklahoma City, OK
PO-GeP-I-155Non-Circular Source-Detector Trajectories Suitable for Limited Angle and Low-Dose CBCT-Based Interventions
S Hatamikia1*, A Biguri2, G Kronreif3, J Kettenbach4, T Russ5, W Birkfellner6, (1) Austrian Center for Medical Innovation and Technology, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria, AT, (2) Institute of Sound and Vibration Research, University of Southampton, United Kingdom(3) Austrian Center Medical Innovation and Technology, Wiener Neustadt, ,AT, (4)Department of Diagnostic and Interventional Radiology and Nuclear Medicine, Wiener Neustadt, Austria(5)Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Heidelberg University,Germany(6) Medical University Vienna, Vienna, 9, AT
PO-GeP-I-157NRsim: Normal Resolution Simulations Using High Resolution Acquisitions On a Commercial CT Scanner
A Hernandez1*, D Shin2, C Abbey3, J Seibert1, N Akino4, T Goto4, J Vaishnav2, K Boedeker4, J Boone1, (1) University of California Davis, Sacramento, CA, (2) Canon Medical System USA, Tustin, CA, (3) University of California Santa Barbara, Santa Barbara, CA, (4) Canon Medical Systems Corporation, Otawara, Japan
PO-GeP-I-158Occupational Radiation Exposure in the Radiological Departments: Assessing the Importance of Radiation Protection of Medical Radiation Workers
F Nuru*, E Osei, Grand River Regional Cancer Center, Kitchener, ON, CA
PO-GeP-I-159Optimization and Validation of An Automatic Noise Measurement Algorithm for Clinical CT Image Data
M Ahmad*, A Thomas, M Jacobsen, R Layman, K Brock, UT MD Anderson Cancer Center, Houston, TX
PO-GeP-I-162Optimizing Imaging Angles in CBCT
Z Hui*, O Dillon, University of Sydney, Sydney, NSW, AU
PO-GeP-I-163Organ Dose Estimation in Body CT Examinations Using a Mathematical Model Based On Planar Scan Range Average Dose
R Faghihi1, S Sina2, M Masoudi1*, (1) Nuclear Engineering department,Shiraz University, Shiraz,Iran, (2) Radiation Research Center, Shiraz University,Iran
PO-GeP-I-165Pediatric CT Radiation Exposure: Where We Were, and Where We Are Now
A Mustafa*, T Goodman, E Rowe, Yale University School of Medicine/YNHH Radiology, New Haven, CT
PO-GeP-I-169Positron Emission Tomography Scatter Image Reconstruction with CNN Machine Learning
G Fontaine*, S Pistorius, University of Manitoba, Winnipeg, MB
PO-GeP-I-171Projection Acquisition Condition of Slow Gantry Rotation for Respiratory Correlated 4D Inverse Geometry Computed Tomography
K Kim1*, D Shin1, T Kim2, J Chung3, S Kang1, W Cho4, T Suh1, (1) Catholic University of Korea, Seoul, ,KR, (2) Proton Therapy Center, National Cancer Center, Goyang-si, Gyeonggi-do, KR, (3) Seoul National University Bundang Hospital, Seongnam, 41, KR, (4) Boramae Medical Center, Seoul, ,KR, (7) Catholic Univ Medical College, Seoul, ,KR
PO-GeP-I-173Prospective Study Using Delta-Radiomics and MRI Biomarkers to Assess Tumor Response of the Dominant Intraprostatic Lesion (DIL) at Multiple Treatment Time Points
M Dumas*, E Mohamed, E Carver, A Feldman, M Pantelic, D Hearshen, B Movsas, I Chetty, N Wen, Henry Ford Health System, Detroit, MI
PO-GeP-I-175Quantification of Small Airway Dimensions Using High Resolution Computed Tomography: A Phantom Study
Y Zhao1*, A Hernandez2, J Boone2,3, S Molloi1, (1) University of California-Irvine, Irvine, CA, (2) University of California-Davis, Sacramento, CA, (3) UC Davis Medical Center, Sacramento, CA
PO-GeP-I-176Quantification of the HU Variation On KV CBCT for Direct Dose Calculation in Adaptive Radiotherapy
N Givehchi*, A Strzelecki, M Lehmann, M Plamondon, S Scheib
PO-GeP-I-178Quantitative Evaluation of Image Quality of Deep-Learning-Based CT Reconstruction Using Structural SIMilarity (SSIM)
K Yang*, A Parakh, R Gupta, A Kambadakone, X Li, B Liu, Massachusetts General Hospital, Harvard Medical School, Boston, MA
PO-GeP-I-181Quantitative Imaging of 177Lu in the Presence of 90Y for Peptide Receptor Radionuclide Therapy: A Simulation Study
C Miller1*, A Rahmim12, C Uribe-munoz34, A Celler4, (1) Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, CA (2) Department of Integrative Oncology, BC Cancer Research Centre, Vancouver, BC, CA (3) PET Functional Imaging, BC Cancer Research Centre, Vancouver BC, CA (4) Department of Radiology, University of British Columbia, Vancouver, BC, CA
PO-GeP-I-183Radiation Risk Assessment of Using Gold Nanoparticles as Contrast Agent in Image-Guided Radiotherapy: A Monte Carlo Study
J Chow1*, D Mututantri-bastiyange2, (1) Princess Margaret Cancer Centre, Toronto, ON, CA, (2) Ryerson University, Toronto, ON, CA
PO-GeP-I-185Real Time Image Reconstruction Technique for Digital Breast Tomosynthesis-Guided Needle Biopsy
P Singh1*, C Choi2, T Vent2, A Maidment3, (1) Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, (2) Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, (3) Department of Radiology, University of Pennsylvania, Philadelphia, PA
PO-GeP-I-188Research Progress On Radiation Dose Optimization in CT Examination of Children in China
D Xing1, W Lu1, L Jing2*, W Lu1, (1) Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong Province, CN, (2) Taian Tumor Hospital, Taian, Shandong Province, CN
PO-GeP-I-190Shape Analysis in PET Images Using Convolutional Neural Nets: Limitations of Standard Architectures
I Klyuzhin1,2*, A Rahmim1,2, (1) BC Cancer Research Centre, Vancouver, BC, CA, (2) University of British Columbia, Vancouver, BC, CA
PO-GeP-I-193Spatial Resolution Improvement with Unsupervised Estimation of Non-Ideal Focal Spot Effect for Computed Tomography
Z Zhang*, X Li, L Yu, X Liang, L Xing, Stanford Univ School of Medicine, Stanford, CA
PO-GeP-I-195Standard-Of-Care LutaThera Exposure Rates, Radiation Precaution Durations and Estimated Total Effective Dose Equivalents: One Institution's First Year and a Half Experience
W Erwin1*, M Jacobsen1, R Wendt1, (1) UT MD Anderson Cancer Center, Houston, TX
PO-GeP-I-196Stochastic Backprojection for Accelerated Model-Based Iterative 3D Image Reconstruction
A Sisniega1*, J Stayman1, S Capostagno1, C Weiss1, T Ehtiati2, J Siewerdsen1, (1) Johns Hopkins University, Balitmore, MD, (2) Siemens Healthineers, Forchheim, Germany
PO-GeP-I-198Structural MRI-Based Radiomics and Machine Learning for the Classification of Attention-Deficit/Hyperactivity Disorder Subtypes
C Lin1, J Qiu2, K Hou3, W Lu3, W Lu3, X Liu3, J Qiu3, L Shi3*, (1) Taian Disabled Soldiers' Hospital Of Shandong Province, Taian, CN, (2) Taian Municipal Center For disease control and prevention, Taian, CN, (3) Shandong First Medical University & Shandong Academy Of Medical Sciences, Taian, CN
PO-GeP-I-201Super Resolution Reconstruction of T2-Weighted Knee MRI From Single-Plane Low Resolution Interleaved Acquisitions
R Nosrati1,2, O Afacan1,2*, A Gholipour1,2, A Tsai1,2, S Warfield1,2, (1) Harvard Medical School, Boston, MA, (2) Boston Children's Hospital, Boston, MA
PO-GeP-I-208The Effect of Reconstruction and Volume Preset Parameters On Low-Contrast Visibility for KV CBCT
H Lee1, M Goss2*, D Pavord3, S Palefsky4, J Sohn5, (1) Allegheny Health Network, Pittsburgh, PA, (2) Allegheny Health Network, Pittsburgh, PA, (3) Allegheny General Hospital, Pittsburgh, PA, (4) Elekta, Inc., Atlanta, GA, (5) Allegheny Health Network, Pittsburgh, PA
PO-GeP-I-209The Effect of Reconstruction Filters On Dual Energy CT Images From a Single-Source Sequential System
C Olguin*, I Barreto, S Leon, C Schaeffer, A Heshmat, M Arreola, University of Florida College of Medicine, Gainesville, FL
PO-GeP-I-214Theoretical Framework for Evaluation of X-Ray Spectra Shape Effects On Dual-Energy Image Quality
I Romadanov1*, M Sattarivand2, (1) Nova Scotia Health Authority, Halifax, NS, CA, (2) Nova Scotia Cancer Centre, Halifax, NS, CA
PO-GeP-I-219Training and Validation of a Commercial Deep Learning Contouring Platforms
J Koo*, J Caudell, V Feygelman, E Moros, K Latifi, H. Lee Moffitt Cancer Center, Tampa, FL
PO-GeP-I-222Understanding the Interdependent Relationship Between Radiation Dose and Iterative Reconstruction Strength in Abdominal CT Using a Live Animal Model
H Ganesh*, F Raslau, C Adams, E Escott, J Zhang, University of Kentucky, Lexington, KY
PO-GeP-I-223Upright Dedicated Cone-Beam Breast CT: Short-Scan, Non-Uniform, Sparse-View Angular Sampling for Radiation Dose Reduction
H Tseng, S Vedantham*, A Karellas, University of Arizona, Tucson, AZ
PO-GeP-I-224Usefulness of Novel Temporal Subtraction Technique with Small Region of Interest for Finding Suspicious Lung Nodule On Digital Chest Radiographs
M Ozaki1*, J Morishita2, Y Shimizu3, Y Sasaki4,Y Yamashita1, Y Yoon2,H Yabuuchi2(1)Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, (2) Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan, (3) Department of Radiological Technology, Yamaguchi University Hospital, Ube, Japan,(4)Department of Radiology, Iwate Prefectural Central Hospital, Morioka, Japan
PO-GeP-I-228Validation of a Deformable Image Registration Method to Assess Lung Ventilation From 4DCT
C Laplante*, S Bedwani, J Carrier, Hopital Notre-Dame du CHUM, Montreal, QCCA,
PO-GeP-I-229Validation of a Novel 3D Printed Contrast-Detail Phantom for Cardiac Nuclear Medicine
S Green*, J Grice, Vanderbilt University Medical Center, Nashville, TN
PO-GeP-I-231Validation of Robust CT-Ventilation Methods
E Castillo1*, R Castillo2, Y Vinogradskiy3, G Nair1, I Grills1, T Guerrero1, C Stevens1, (1) Beaumont Health System, Royal Oak, MI, (2) Emory Univ, Atlanta, GA, (3) University of Colorado Denver, Aurora, CO
PO-GeP-I-233Variations in Image Artifacts at Ultra-Low Radiation Dose Levels Due to Differences in Scanner Make and Model: Implications for CT Screening Applications
J Browne, M Bruesewitz, Z Long*, T Vrieze, C McCollough, L Yu, Mayo Clinic, Rochester, MN
PO-GeP-M-12D to 3D Line Pattern Match (3DLM) Scheme in 6D for Marker Based Image Guided Radiation Therapy
H Kuo1*, D Lovelock2, A Damato3, M Zelefsky4, S Lin5, C Della-Biancia6, S Berry7, M Hunt8, (1) Memorial Sloan Kettering Cancer Ctr, Norwalk, CT, (2) Memorial Sloan-Kettering Cancer Ctr, New York, NY, (3) Memorial Sloan Kettering Cancer Ctr, New York, NY, (4) Memorial Sloan Kettering Cancer Ctr,New York City, ,(5) Norwalk Hospital, Norwalk, CT, (6) Memorial Sloan Kettering Cancer Ctr, New York, NY, (7) Memorial Sloan Kettering Cancer Ctr, New York, NY, (8) Mem Sloan-Kettering Cancer Ctr, New York, NY
PO-GeP-M-34DCT Quality Assurance with Multi-Vendors Respiratory Signals Input
T Lin*, A Galuza, J Liu, C Ma, Fox Chase Cancer Center, Philadelphia, PA
PO-GeP-M-5A Comparison of Internal Target Volumes (ITVs) Between 4DCT Simulation Images and 4DCBCT Pre-Treatment Images Using a Respiratory Phantom at Two Different Simulated Respiratory Rates
S Parker*, C Whiddon, D Nelson, J Foster, Wake Forest Baptist Health High Point Medical Center, High Point, NC
PO-GeP-M-13A Deep Transfer Learning-Based Radiomics Model for Prediction of Local Recurrence in Laryngeal Cancer
Y Jia12*, X Qi2, J Du2, R Chin2, E McKenzie2, K Sheng2, (1) Shaanxi Key Laboratory of Network Data Intelligent Processing; UCLA School of Medicine, Xi'an, Shaanxi, CN, (2) UCLA School of Medicine, Los Angeles, CA
PO-GeP-M-24A Novel Coplanar Multi-Modality Tomographic Imaging for Image Guidance in Radiotherapy Using Hybrid Radiation Detector
Hewei Gao*, Yingxian Xia, Tsinghua University, Haidian Dist, 11CN,
PO-GeP-M-45Accurate Tracking of Position and Dose During VMAT Based On VMAT-CT
X Zhao1*, R Zhang2, (1) Louisiana State University, Baton Rouge, LA, (2) Mary Bird Perkins Cancer Center, Baton Rouge, LA
PO-GeP-M-49ALARA in a Flash - Radiation Shielding and Safety Implications Following Linac Conversion to An Electron FLASH-RT Unit
Y Poirier*, S Becker, S Mossahebi, N Lamichhane, A Sawant, University of Maryland School Of Medicine, Baltimore, MD
PO-GeP-M-50Alert System for Monitoring Changes in Patient Anatomy During Radiation Therapy of Head and Neck Cancer
B Schaly1, 2*, J Kempe1, V Venkatesan1, 3, S Mitchell1, J Chen1, 2, (1) London Regional Cancer Program, London, ON, CA, (2) Departments of Medical Biophysics and Oncology, Western University, London, ON, CA, (3) Department of Oncology and Schulich School of Medicine and Dentistry, Western University, London, ON, CA
PO-GeP-M-54An Automatic Tumor Motion Determination Towards Daily ITV Margin Verification in Lung SBRT Using Markerless 4D-CBCT
T Fuangrod1*, B Sakchatchawan2,3, Y Vichianin3, and K Srungboonmee4 (1) Faculty of Medicine and Public Health, HRH Princess Chulabhorn College of Medical Science, Chulabhron Royal Academy, Bangkok, TH (2) Chulabhorn Hospital, HRH Princess Chulabhorn College of Medical Science, Chulabhron Royal Academy, Bangkok, TH (3) Department of Radiological Technology, Faculty of Medical Technology, Mahidol University, Bangkok, TH (4) Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, TH
PO-GeP-M-63Application of Kilovoltage Cone-Beam CT Images in Extracting Radiomics Signature for Predicting Radiation-Induced Pneumonitis
Y Huang*, H Liu, R Yu, Y Pu, Y Zhang#, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing, BeijingCN, #corresponding author: Yibao Zhang; email: zhangyibao@pku.edu.cn
PO-GeP-M-70Assessment of CBCT-Based Dose Accumulation for Robustly Optimized Intensity-Modulated Proton Therapy Plans with Different Uncertainty Scenarios for Treatment of Prostate Cancer
Y Xu*, M Butkus, N Brovold, A King, T Diwanji, A Pollack, M Abramowitz, N Dogan, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
PO-GeP-M-73Assessment of Ventilation-Perfusion (V/Q) Relationships with 68Ga V/Q PET/CT in Lung Cancer Patients
Z Li1*, J Callahan2, M Hofman2, S Siva2, T Yamamoto1, (1) University of California Davis, Sacramento, CA, (2) Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
PO-GeP-M-78Automated Identification of DICOM-RT Structures Using Map Projections and Machine Learning
D Cutright1*, T Wu1, A Roy2, M Gopalakrishnan3, B Mittal3 (1) University of Chicago Medicine, Chicago, IL, (2) The University of Texas at San Antonio, San Antonio, TX, (3) Northwestern Memorial Hospital, Chicago, IL
PO-GeP-M-79Automatic Prostate Bed Target Segmentation On Daily Cone-Beam CT Image Using a Multi-Path 3D Dense-UNet
J Fu1*, S Yoon1, A Kishan1, K Singhrao1, Z Wang1, J Lewis2, D Ruan1, (1) Department Of Radiation Oncology, UCLA, Los Angeles, CA, (2) Cedars-Sinai Medical Center, Beverly Hills, CA.
PO-GeP-M-81Automatic Segmentation of the Prostate On CT Images Using a Bi-Directional Convolutional LSTM U-Net with Novel Loss Function
X Li1*, H Bagher-Ebadian2, C Li1, E Mohamed2, F Siddiqui2, B Movsas2, D Zhu1, I Chetty2, (1) Wayne State University (2) Henry Ford Health System, Detroit, MI
PO-GeP-M-87Calculation of Rotational Patient Positional Error Corrected Setup Margin in Frameless Stereotactic Radiosurgery and Radiotherapy
B Sarkar1*, (1) Apollo Gleneagles Hospitals Limited (2) GLA University Mathura
PO-GeP-M-91CAPULET: A Novel Coded Aperture Prompt-Gamma Ultra-Light Imaging DETector
A Vella*, F Van den Heuvel, CRUK/MRC Oxford Institute for Radiation Oncology, University of Oxford, Oxford, GB
PO-GeP-M-92CBCT-Based Adaptive Intensity Modulated Proton Radiotherapy
P Sabouri1, M Mundis1, S Andersson2, R Nilsson2, K Eriksson2, S Chen1, S Mossahebi1*, (1) University of Maryland School of Medicine, Baltimore, MD (2) RaySearch Laboratories AB, Stockholm, SE
PO-GeP-M-93Characterization of CT Hounsfield Units Uniformity of 3D-Printed Materials for Proton Therapy
E Orton1*, C Engelberts1, R Orbovic1, M Crocker1,2, B Basaric1, D Sobczak3, L Zhao3, (1) Adaptiiv Medical Technologies, Halifax, NS, CA, (2) Dalhousie University, Halifax, NS, CA, (3) St. Jude Children's Research Hospital, Memphis, TN
PO-GeP-M-94Characterization of Patient Shifts From Ct Simulation to First Fraction to Improve Tumor Localization
S Drehmel1*, J Lawrence2, C Ferreira3, E Ehler3 (1) University of Minnesota, Minneapolis, MN, (2) University of Minnesota, Saint Paul, MN, (3) University of Minnesota, Minneapolis, MN
PO-GeP-M-96Characterizing the Excursion of Sensitive Cardiac Substructures Due to Respiration
C.R. Miller1,2*, E.D. Morris1,3, A.I. Ghanem1,4, M. Pantelic5, E.M. Walker1, C.K. Glide-Hurst1,3, (1) Department of Radiation Oncology, Henry Ford Cancer Institute, Detroit, MI (2) College of Engineering, Wayne State University, Detroit, MI (3) Department of Radiation Oncology, Wayne State University School of Medicine, Detroit, MI (4) Department of Clinical Oncology, Alexandria University, Alexandria, Egypt, (5) Department of Radiology, Henry Ford Cancer Institute, Detroit, MI
PO-GeP-M-106Comparing Delivered Dose Estimations with and Without Dose Recalculation for Head-And-Neck Adaptive Radiotherapy
Y Hu*, M Aristophanous, L Cervino, A Caringi, N Allgood, M Hunt, Memorial Sloan Kettering Cancer Center, New York, NY
PO-GeP-M-108Comparing the Stability of Deep Inspiration Breath-Holds Between ABC and VisionRT During Breast Irradiation
Z Iqbal1, R McBeth1, M Joo1*, D Parsons1, A Rahimi1, N Kim1, A Sawant2, X Gu1, B Zhao1, (1) University of Texas Southwestern Medical Center, Dallas, TX, (2) University of Maryland School of Medicine, Baltimore, MD
PO-GeP-M-120Cone-Beam CT Radiomics for Patients with Liver Tumors Treated by Stereotactic Body Radiation Therapy: A Pilot Study
P Yang1*, J Shan2, Q Zhou2, L Xu1, Z Cao1, T Niu3, M Huang4, X Sun2, (1) Zhejiang University, Hangzhou, ,CN, (2) Department of Radiation Oncology, Sir Run Run Shaw Hospital, Zhejiang Univ., Hangzhou, ,CN,(3) Georgia Institute Of Technology,Woodruff School of Mechanical Engineering,Atlanta,GA(4) Duke University, Department of Radiation Oncology, Durham, NC,
PO-GeP-M-123Convolutional Neural Network Learning From RT Dose Distribution and Images Improves Predicting Locoregional Recurrence for Head and Neck Cancer
A Wu1*, Y Li2, M Qi1, X Lu1, Y Liu1, L Zhou1, T Song1, (1) Southern Medical University, Guangzhou, Guangdong, CN, (2) Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, CN
PO-GeP-M-126CT Image Parameter Estimation Using PCA-Based Deep Learning in Chronic Obstructive Pulmonary Disease
A Moslemi1*, W Tan2, J Bourbeau3, J Hogg2, H Coxson2, M Kirby1, (1) Ryerson University, Toronto, Ontario, CA, (2) Centre For Heart Lung Innovation, University Of British Columbia, (3) McGill University
PO-GeP-M-127CT Vs. Fluoroscopy Guidance for Nusinersen Intrathecal Injection: Quantitative Evaluation of the Learning Process Effect On Patients Radiation Exposure
R Al Helo*, L Zimmermann, A Azar, N Bass, D Jordan, N Azar, University Hospitals Cleveland Medical Center, Cleveland, OH
PO-GeP-M-138Deep Learning-Based Auto-Segmentation of OARs in Head and Neck CT Images
Z Shen1*, A Garsa1, S Sun2, N Bai2, C Zhang2, A Shiu1, E Chang1, W Yang1, (1) University of Southern California, Los Angeles, CA, (2) DeepVoxel Inc., Irvine, CA
PO-GeP-M-142Delay-Line Based Optical Reservoir Computing Towards Real-Time Respiratory Motion Prediction
Z Liang1, C Shi2, X Tang3*, J Li4, X Shen5, Z Huang6, (1) Rensselaer Polytechinic Institute, Troy, NY, (2) Memorial Sloan Kettering Cancer Center, Marlboro, NJ, (3) Yale New Haven Hospital, New Haven, CT, (4) Rensselaer Polytechnic Institute, Troy, NY, (5) Rensselaer Polytechnic Institute, New York, NY, (6) Rensselaer Polytechnic Institute, Troy, NY
PO-GeP-M-146Detector Performance Effects On Compton Camera Data Quality
P Maggi1*, S Peterson2, R Panthi3, D Mackin3, S Beddar3, J Polf1, (1) University of Maryland, Baltimore, Baltimore, MD, (2) University of Cape Town, Rondebosch, ,ZA, (3) The University of Texas M.D. Anderson Cancer Center, Houston, TX
PO-GeP-M-147Determination of Planning Target Volume Margin for Gastric Lymphoma Radiotherapy Using Daily Four-Dimensional Cone-Beam Computed Tomography
Y Shimohigashi1*, Y Doi1, Y Kono1, M Maruyama1, Y Kai1, R Toya2, (1) Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan, (2) Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan
PO-GeP-M-156Differentiating the Pathological Subtypes of Primary Lung Cancer for Patients with Brain Metastases Based On Radiomics Features From Brain CT Images
X Jin1*, Z Ji2, C Xie3, (1) Wenzhou Medical University First Hospital, Wenzhou, ,CN, (2) ,,,(3) ,Wenzhou, ,CN
PO-GeP-M-159Direct Dose Calculation On CBCTs for Various Treatment Sites in Adaptive Radiotherapy
C Wessels*, S Scheib, Varian Medical System, Daettwil, AGCH,
PO-GeP-M-167Dose Verification of Four-Dimensional Cone-Beam Computed Tomography for Target Localization of Planned and Unplanned Target Motion
C Baley*, S Stathakis, P Myers, N Kirby, K Rasmussen, N Papanikolaou, D Saenz, Mays Cancer Center - MD Anderson Cancer Center, San Antonio, TX
PO-GeP-M-169Dosimetric Analysis of OARnet Auto-Delineations for Head and Neck Organs-At-Risk
M H Soomro*, H Nourzadeh, V Leandro Alves, W Choi, J Siebers, University of Virginia, Charlottesville, VA
PO-GeP-M-170Dosimetric and Geometric Evaluation of Five Commercial Contour Propagation Tools for Online Adaptive Radiotherapy
D Nash1,2*, S Juneja1, A McWilliam2,3, AL Palmer1,4,5, E Vasquez Osorio2,3, (1) Queen Alexandra Hospital, Portsmouth, UK, (2) University of Manchester, Manchester, UK (3) The Christie NHS Foundation Trust, Manchester, UK (4) University of Surrey, Guildford, UK (5) University of Portsmouth, Portsmouth, UK
PO-GeP-M-180Effect of Using Harmonized Radiomic Features On Predicting Volume of Radiographic Changes Following Stereotactic Body Radiotherapy in Lung
R N Mahon1*, M Ghita1, G D Hugo2, N Kalman3, N Mukhopadhyay1, E Weiss1, (1) Virginia Commonwealth University, Richmond, VA, (2) Washington University School of Medicine, St. Louis, MO, (3) Miami Cancer Institute, Miami, FL.
PO-GeP-M-188Establishment and Validation of a Multi-Omics Nomogram to Predict Lymph Node Metastasis of Esophageal Squamous Cell Carcinoma
Z Li1, B Li2*, (1)University of Jinan,Jinan, Shandong Province, CN, (2)Shandong Cancer Hospital and Institute, Jinan,Shandong Province,CN; Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong Province,CN;
PO-GeP-M-189Estimation of Radiation Dose to Korean Population by Cardiovascular SPECT-CT Examinations
YJ Yun1, HW Nam2, WJ Kim3, KP Kim4*, (1) Kyunghee University, Yongin-si,Gyeonggi,KR, (2) Kyunghee University,Yongin-si,Gyeonggi,KR, (3) Korea Institute Of Nuclear Safety,Yuseong-gu,Daejeon,KR, (4) Kyung Hee University, Yongin-si,Gyeonggi,KR
PO-GeP-M-192Evaluating ICBCT Image Quality at Halcyon Linac for Patient Set Up Verification
M Gei1*, J Visak2, D Pokhrel3, (1) University of Kentucky, Georgetown, KY, (2) University of Kentucky, New Lenox, IL, (3) University of Kentucky, Lexington, KY
PO-GeP-M-195Evaluating the Efficacy of Regression Models in Radiomics: A Study with NSCLC Patients
HHF Choi1*, (1) ,Vancouver, BC, CA
PO-GeP-M-200Evaluation of Intrafractional Motion in Spine Stereotactic Body Radiotherapy
M Kanda*, Y Nakajima, K Ito, Y Suda, H Ogawa, K Abe, K Karasawa, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, JP,
PO-GeP-M-204Evaluation of MRI Radiomics Feature Robustness Using a Virtual Radiomics Phantom
C Ma*, X Wang, K Qing, N Yue, K Nie, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ
PO-GeP-M-206Evaluation of Real-Time Cine Imaging During MLC and Gantry Motion for MR-Guided Radiation Therapy
J Kielbasa*, S Meeks, P Kelly, T Willoughby, O Zeidan, A Shah, UF Health Cancer Center at Orlando Health, Orlando, FL
PO-GeP-M-212Evaluation of the Direct Density Algorithm for Energy-Independent Radiotherapy Planning
A Shutler1*, A Sarkar1, G Grousset2, J Shah2, F Mourtada1, (1) Christiana Care Health System, Newark, DE, (2) Siemens Healthineers USA, Malvern, PA
PO-GeP-M-215Evaluation of the Stability of Radiomics Features Using 4D-CT and Across Radiomics Platforms for Lung and Liver Tumors
X Wang1*, C Ma1, H Wang2, Y Zhang1, N Yue1, K Nie1, (1) Rutgers-Cancer Institute of New Jersey, Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, (2) Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
PO-GeP-M-219Feasibility of Direct Proton Dose Calculation On CBCT Scans in Esophageal Cancer
G Defraene*, M Thomas, R De Roover, S Michiels, T Depuydt, E Sterpin, K Haustermans, KU Leuven - University of Leuven
PO-GeP-M-224Feasibility of Surface Tracking During Framed Stereotactic Radiosurgery
A Paxton*, V Sarkar, H Zhao, C Dial, B Salter, University of Utah, Salt Lake City, UT
PO-GeP-M-231Generalizability Issue of Deep Learning Models in Medicine and Its Potential Solutions: Illustrated with CBCT to CT Image Conversion
X Liang*, D Nguyen, S Jiang, UT Southwestern Medical Center, Dallas, TX
PO-GeP-M-236High Resolution Spectroscopic MRI and Scripting: Towards Automated Planning for a Multi-Center Clinical Trial
E Schreibmann, K Ramesh*, H Shu, H Shim, Department of Radiation Oncology and Winship Cancer Institute of Emory University
PO-GeP-M-237Higher Ventilation Induced Radiation Pneumonitis for Non-Small Cell Lung Cancer Patients
T Lin*, S Kumar, A Dayal, C Ma, Fox Chase Cancer Center, Philadelphia, PA
PO-GeP-M-238How Low Can You Go? A CBCT Dose Reduction Study
A Olch1*, P Alaei2, (1) University of Southern California, and Children's Hospital of Los Angeles, Los Angeles, CA, (2) University of Minnesota, Minneapolis, MN, AF
PO-GeP-M-239Identifying Robust Radiomic Features Extracted From Images Generated by 0.35T MR-Linac
R Ericsson-szecsenyi1*, G Zhang2, G Redler2, K Latifi2, V Feygelman2, M Tomaszewski2, E Moros2, (1) University of Lund, (2) H. Lee Moffitt Cancer Center, Tampa, FL
PO-GeP-M-243Impact of ICBCT Reconstruction On Cone Beam Acquisitions
G Stinnett*, G Nelson, R Price, H Zhao, A Paxton, V Sarkar, B Salter, University of Utah, Salt Lake City, UT
PO-GeP-M-245Impact of Imaging Frequency On the Accuracy of Patient Treatment Dose: An Evaluation Based On Halcyon MVCBCT
H Wang*, Q Hu, Y Huang, Y Zhang#, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing, BeijingCN,#corresponding author: Yibao Zhang; email: zhangyibao@pku.edu.cn
PO-GeP-M-252Improved Auto-Segmentation for CT Male Pelvis: Comparison of Deep Learning to Traditional Atlas Segmentation Methods
C Halley*, H Wan, A Kruzer, D Pittock, D Darkow, M Butler, N Cole, M Bending, P Jacobs, AS Nelson, MIM Software Inc., Cleveland, OH
PO-GeP-M-256Increased DQE Through Use of Light Field Cameras and Thick Scintillators in Megavoltage Imaging
B Preusser1*, E Pearson1, P La Riviere1, R Wiersma2, (1) University of Chicago, Chicago, IL (2) University of Pennsylvania, Philadelphia, PA
PO-GeP-M-258Individualized Prediction of Local Recurrence After Radical Surgery for Esophageal Squamous Cell Carcinoma: Development and Validation of Radiomics Nomogram
Z Li1, B Li2*, (1) University of Jinan, Jinan, Shandong, CN, (2) Shandong Cancer Hospital and Institute,Jinan, Shandong,CN;Shandong First Medical University and Shandong Academy of Medical Sciences,Jinan, Shandong,CN.
PO-GeP-M-262Initial Investigation of Dose Calculation On Intra-Irradiation Cone-Beam CT Images
H Iramina*, M Nakamura, T Mizowaki, Kyoto University, Graduate School of Medicine, Kyoto, JP
PO-GeP-M-269Investigating Internal-External Motion Correlation Using Fast Helical Free-Breathing CT and Simultaneous Respiratory Bellows
M Lauria1*, R Navaratna2, D O'Connell1, P Lee3, D Low1, (1) UCLA, Los Angeles, CA, (2) University of Wisconsin, Madison, WI, (3) The University of Texas M.D. Anderson Cancer Center, Houston, TX
PO-GeP-M-271Investigating the Impact of Secondaries Neutrons On Compton Camera for Medical Imaging
S Peterson1*, P Maggi2, R Panthi3, D Mackin3, S Beddar3, J Polf2, (1) University of Cape Town, Rondebosch, ZA, (2) University of Maryland School of Medicine, Baltimore, MD, (3) The University of Texas MD Anderson Cancer Center, Houston, TX
PO-GeP-M-273Investigation of Partial-Arc CBCT Protocols for Imaging Extremities
P Watson*, E Poon, McGill University Health Centre, Montreal, QC, CA
PO-GeP-M-278KV-Energy Fan-Beam CT Imaging Performance of a Novel Biology-Guided Radiotherapy (BgRT) Machine
Z Sun1*, H Gao2, S Xu3, J Ye4, C Huntzinger5, S Shirvani6, S Mazin7, T Laurence8, (1) Reflexion Medical, Hayward, CA, (2) Tsinghua University, Haidian Dist, 11, CN, (3) Reflexion Medical, Hayward, CA, (4) Reflexion Medical, Hayward, CA, (5) RefleXion Medical, Hayward, CA, (6) Reflexion Medical, Hayward, CA, (7) Reflexion Medical, Hayward, CA, (8) Reflexion Medical, Hayward, CA
PO-GeP-M-284Limitations of Dose-Volume Metrics in Deformable Registration: Implications for Organs-At-Risk in Sharp Dose Gradients
H Keller1,2*, A Mehlisch3, P Manser4, M K Fix4, K Han1,2, T Tadic1,2, (1) Dept. Radiation Oncology, University of Toronto, Toronto, CA; (2) Princess Margaret Cancer Centre - UHN, Toronto, CA, (3) Department of Physics, ETH Zurich, Zurich, Switzerland; (4) Inselspital (Bern University Hospital), University of Bern, Bern, Switzerland.
PO-GeP-M-285Long Term Stability of KV Cone Beam CT (CBCT) Image Quality Assurance for IBA Proteus PLUS Proton Therapy System
J George*, J Bennouna, S Rana, J Yu, L Coutinho, M Hobson, L Perles, S George, A Gutierrez, Miami Cancer Institute, Miami, FLORIDA,
PO-GeP-M-286Longitudinal Analysis of Parotid Gland Anatomical Changes During Radiotherapy by Recurrent Convolutional Neural Networks
D Lee*, P Zhang, S Alam, J Jiang, S Nadeem, A Caringi, N Allgood, Y Hu, Memorial Sloan Kettering Cancer Center, New York, NY
PO-GeP-M-290Machine Learning of MAA SPECT Lung Perfusion Radiomics to Predict Radiation and Immune-Mediated Pneumonitis in Patients with Locally Advanced Non-Small Cell Lung Cancer
H Thomas T1, J Zeng2, P Kinahan2, R Miyaoka2, H Vesselle2, R Rengan2, S Bowen2*, (1) Christian Medical College Vellore, Vellore, TN, IN, (2) University of Washington, School of Medicine, Seattle, WA
PO-GeP-M-293Mean Energy, Dose, and Sources of Out-Of-Field Radiation in Flattening-Filter and Flattening-Filter-Free 6 MV Beams, Measured with TL Dosimeters
VM Lopez-Guadalupe1, A Rodriguez-Laguna2, MA Poitevin-Chacon2, E Lopez-Pineda1, ME Brandan1*, (1) Instituto De Fisica, UNAM, Mexico City, MX (2) Unidad de Radioterapia, Hospital Medica Sur, Mexico City, MX
PO-GeP-M-298Monte Carlo Simulation Framework for Scatter Correction of KV and MV CBCT Images of the Varian TrueBeam STx Linac
B Zapien Campos*, Instituto de Fisica,UNAM,Mexico City,MX A Martinez Davalos*, Instituto de Fisica,UNAM,Mexico City,MX H Alva Sanchez*, Instituto de Fisica,UNAM,Mexico City,MX M Rodriguez Villafuerte*, Instituto de Fisica,UNAM,Mexico City,MX
PO-GeP-M-303MRI-Only Brain Radiotherapy: Assessing the Dosimetric Accuracy of Synthetic CT Images Generated Using Cycle GAN
S Kazemifar1*, A Barragan Montero2, T Bai1, R Timmerman1, Y Park1, M Lin1, S Jiang1, A Owrangi1, (1) UT Southwestern Medical Center, Dalllas, TX, (2) Universite Catholique de Louvain, Brussels, VBR, BE
PO-GeP-M-305Multi-Modality Imaging of Treatment Response After Stage III Non-Small Cell Lung Cancer Radiotherapy
HM Young1,2,3*, O Chau1,2*, K Burgers3, TY Lee1,3,4, FS Prato1,4, G Wisenberg1,4, S Gaede1,2,4, (1) Western University, London, ON, CA, (2) London Regional Cancer Program, London, ON, CA, (3) Robarts Research Institute, London, ON, CA, (4) Lawson Health Research Institute, London, ON, CA
PO-GeP-M-308Multiple Resolution Residual Network for Automatic Thoracic Organs-At-Risk Segmentation in CT
H Um*, J Jiang, M Thor, A Rimner, L Luo, J Deasy, H Veeraraghavan, Memorial Sloan Kettering Cancer Center, New York, NY
PO-GeP-M-309Multi-Section CT Radiomics Can Accurately Predict Postoperative Recurrence in Esophageal Squamous Cell Cancer Patients Achieving PCR After Neoadjuvant Chemoradiotherapy Followed by Surgery
Q Qiu1*, J Duan1, H Deng2, Z Han3, J Gu1, Y Yin1, (1) Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, CN, (2) Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, CN (3) Yantai Yuhuangding Hospital, Yantai, Shandong, CN
PO-GeP-M-310Normal Tissue and Tumor Segmentation Using V-Net Regularized by YOLO
C Hsu1*, C Morin1, T Kirby2, M Metzger1, J Flerlage1, S Kaste1, M Krasin1, B Shulkin1, J Lucas1, (1) St. Jude Children's Research Hospital, Memphis, TN, (2) Rhodes College, Memphis , TN
PO-GeP-M-312On the Feasibility of Daily Delivered Dose Evaluation Using RTapp for Adaptive Lung SBRT Treatments
N Zulkarnain*, D Mathew, C Cho, A Santhanam, D Elliott, S Seshan, Y Watanabe, University of Minnesota, Minneapolis, MN
PO-GeP-M-325Patterns in the Diffusion Characteristics of Brain Metastases in Stereotactic Radiosurgery Patients Using Diffusion Weighted Imaging
J Madamesila*, N Ploquin, E Tchistiakova, Tom Baker Cancer Center, Calgary, AB, CA
PO-GeP-M-328Pre-Clinical Evaluation of a Surface Imaging System for Intracranial Stereotactic Radiosurgery
E Covington1*, C Huyghe2, S Wiesner2, D Hanson2, R Popple1, (1) University of Alabama-Birmingham, Birmingham, AL, (2) Varian Medical Systems, Palo Alto, CA
PO-GeP-M-331Predicting Treatment Outcome After Immunotherapy Based On Delta-Radiomic Model in Metastatic Melanoma
X Chen1*, M Zhou1, K Wang2, Z Wang4, Z Zhou4, (1) Xi'an Jiaotong University, Xi'an, Shaanxi, CN, (2) UT Southwestern Medical Center, Dallas, TX, (3) Peking University Cancer Hospital, Beijing, CN, (4) University Of Central Missouri, Warrensburg, Missouri
PO-GeP-M-334Prediction of Uterus Volume Shrinkage for Cervical Cancer Patients During Radiotherapy Using Machine-Learning Approach with Treatment Planning-CT Radiomic Features
M Nakano1*, T Nakamoto2, Y Kumai1, Y Koizumi1, M Sumi1, K Nawa2, T Imae2, Y Yoshioka1, M Oguchi1, (1) Cancer Institute Hospital of JFCR, Koto-ku, Tokyo, JP, (2) The University of Tokyo Hospital, Bunkyo-ku, Tokyo, JP
PO-GeP-M-337Prognostic Prediction for Lung Stereotactic Body Radiotherapy Using Breath-Hold CT-Based Radiomic Features with Random Survival Forest: A Multi-Institutional Study
R Kakino1,2,3*, M Nakamura1,2, T Mitsuyoshi2,4, T Shintani2, M Kokubo4, Y Negoro5, M Fushiki6, M Ogura7, S Itasaka8, C Yamauchi9, S Otsu10, T Sakamoto11, M Sakamoto12, N Araki13, H Hirashima2, T Adachi1,2, Y Matsuo2, T Mizowaki2, (1) Division of Medical Physics, Department of Information Technology and Medical Engineering, Human Health Sciences, Graduate School of Medicine, Kyoto University, (2) Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, (3) Research Fellow at Japan Society for the Promotion of Science, (4) Department of Radiation Oncology, Kobe City Medical Center General Hospital, (5) Department of Radiology, Tenri Hospital, (6) Department of Radiation Oncology, Nagahama City Hospital, Nagahama, (7) Department of Radiation Oncology, Kishiwada City Hospital, Kishiwada , (8) Department of Radiation Oncology, Kurashiki Central Hospital, (9) Department of Radiation Oncology, Shiga General Hospital, (10) Department of Radiation Oncology, Kyoto City Hospital, (11) Department of Radiation Oncology, Kyoto-Katsura Hospital, (12) Department of Radiology, Japanese Red Cross Fukui Hospital, (13) Department of Radiation Oncology, National Hospital Organization Kyoto Medical Center
PO-GeP-M-343Prototyping a Morphological Positioning Robot for Radiotherapy
R Yang1, 3, K Bao3, L Zheng3, P Guan3, F.Q. Guo1, 2*, (1) Yale University, New Haven, CT, (2) Yale New Haven Hospital, New Haven, CT, (3) South China University of Technology
PO-GeP-M-348Quantification of Prostate Positioning Accuracy and Movement During SBRT with CBCT Imaging
K Jones*, Z Grelewicz, J Van Schelt, A Templeton, D Wang, J Turian, Rush University Medical Center, Chicago, IL
PO-GeP-M-350Quantify the Difference in Target Margin Sharpness Demonstrated On 4DCT and 4DCBCT Images
Y Tseng1*, M Zhang2, M Hunt2, Y Song2, (1) Columbia University, New York, NY, (2) Memorial Sloan Kettering Cancer Center, New York, NY
PO-GeP-M-356Radiation Hardness of Cadmium Telluride Solar Cells in Proton Therapy Beam Mode
S Cho1*, S Ahn2, J Song3, (1) Chonnam National University Hospital, Chonnam, ,KR, (2) National Cancer Center, Goyang-si Gyeonggi-do, ,KR, (3) Chonnam National University Medical School, Chonnam, ,KR
PO-GeP-M-358Radiomics Feature Robustness Under Different Image Perturbation Combinations and Intensities: A Study On Nasopharyngeal Carcinoma CT Images
J Zhang1, X Teng1*, Z Ma1, T Yu1, S Lam1, F Lee2, K Au2, W Yip2, J Cai1, (1) The Hong Kong Polytechnic University, Hung Hom, Kowloon, HKSAR, (2) Queen Elizabeth Hospital, HKSAR
PO-GeP-M-360Real-Time Long Range Respiratory Prediction
J Prinable*, R O'Brien, ACRF Image X Institute, University of Sydney Central Clinical School, Sydney, AU
PO-GeP-M-364Reconstruction of Intrafractional 3D Images From Real-Time 2D KV Radiograph and 4DCT
J Kim*, G Chen, A Tai, S Lim, T Keiper, X Li, H Zhong, Medical College of Wisconsin, Milwaukee, WI
PO-GeP-M-371ROdiomX: A New Validated Software for the Radiomics Analysis of Medical Images in Radiation Oncology
H Bagher-Ebadian1*, M Lu1, F Siddiqui1, A Ghanem1, N Wen1, Q Wu1, B Movsas1, I Chetty1, (1) Henry Ford Health System, Detroit, MI
PO-GeP-M-385Stereotactic Space Definition Accuracy in the Latest Gamma Knife Icon Based Radiosurgery
B Liu1*, T Cui1, N Yue1, S Danish1, J Weiner1,K Nie1, (1) Rutgers Cancer Institute of New Jersey, New Brunswick, NJ
PO-GeP-M-389Surveillance of Conventionally Fractionated Lung Radiotherapy Using a CBCT Dose Calculation Framework - a Preliminary Study
G Lasio*, B Zhang, S Lee, A Gopal, B Yi, Univ. of Maryland School Of Medicine, Baltimore, MD
PO-GeP-M-390Synthetic Contrast Enhancement of Cone Beam Computed Tomography (CBCT) for Adaptive Radiotherapy
O Dona*, Y Wang, D Horowitz, A Xu, J Rickman, C Wuu, Columbia Univ, New York, NY
PO-GeP-M-393Techniques and Strategies for Minimizing Reconstruction Artifacts in Extended FOV CT Used for Radiation Therapy Treatment Planning
S Scarboro*, A Polemi, E Aliotta, P Collins, University of Virginia, Charlottesville, VA
PO-GeP-M-395The Content-Based Standardizing Nomenclatures (CBSN) in Radiotherapy for Nasopharyngeal Carcinoma OARs
X MAI1,2, S HUANG1,2, Z Zhong1,2, W Zheng1,3, S Chen1,2, S Zhou2, S Huang1, Y XIA1, X HUANG1, X Yang1*, (1) Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, 510060, China,(2) XinHua College of Sun Yat-sen University, Guangzhou, Guangdong, 510520, China, (3)Southern Theater Air Force Hospital of the People's Liberation Army, Guangzhou, Guangdong, 510050, China
PO-GeP-M-398The Feasibility of Using Radiomics to Detect T-Spine Lytic Bone Metastases in Simulation-CT Images
H Naseri*, J Kildea, McGill University, Montreal, QC, CA,
PO-GeP-M-400The Impact of CT Reconstruction Kernels On Atlas Based Automatic Segmentation
M Reyhan*, B Swann, I Vergalasova, N Yue, K Nie, R Singh, M McKenna, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ
PO-GeP-M-403To Distinguish Peripheral Lung Cancer and Pulmonary Inflammatory Pseudotumor Using CT-Radiomics Features Extracted From PET/CT Images
C Ma, Y Yin*, Shandong Cancer Hospital and Institute,Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, ShandongCN,
PO-GeP-M-410Treatment of Oligoresistant and Oligoprogressive Disease in Metastatic Prostate Cancer Patients with Radiation Therapy
A Roth1*, G Cooley1, J Smilowitz1, P Ferjancic1, G Liu1, R Jeraj1,2, (1) University of Wisconsin, Madison, WI, (2) University of Ljubljana, SI
PO-GeP-M-412Unboxing Artificial Intelligence "black-Box" Models - A Novel Heuristic
S Weppler1,2*, H Quon1,2, N Harjai1, C Beers1, L Van Dyke2, C Kirkby1,2,3, C Schinkel1,2, W Smith1,2, (1) University of Calgary, Calgary, AB, CA, (2) Tom Baker Cancer Centre, Calgary, AB, CA, (3) Jack Ady Cancer Centre, Lethbridge, AB, CA.
PO-GeP-M-416Using Raman Spectroscopy and Machine Learning to Predict and Monitor Cellular Radiation Responses
X Deng*, K Milligan, R Ali-Adeeb, P Shreeves, S Van Nest, J Andrews, A Brolo, J Lum, A Jirasek, University of British Columbia, Kelowna, BC, CA, University of Victoria, Victoria, BC, CA, Deeley Research Centre, BC Cancer, Victoria, BC, CA, Weill Cornell Medicine, New York, NY, USA
PO-GeP-M-417Using Very Small Contour Sets to Train High-Quality Deep-Learning Segmentation Models
Y Zhao*, D Rhee, C Cardenas, L Court, J Yang, The University of Texas MD Anderson Cancer Center, Houston, TX
PO-GeP-M-425Validation of Four-Dimensional Computed Tomography Without An External Respiratory Signals Device for the Radiotherapy Planning of Lung Cancer Patients
Y Shimohigashi1*, Y Doi1, Y Kono1, M Maruyama1, Y Kai1, R Toya2, (1) Department of Radiological Technology, Kumamoto University Hospital, Kumamoto, Japan,(2) Department of Radiation Oncology, Kumamoto University Hospital, Kumamoto, Japan,
PO-GeP-M-439Comparison of a 3D Convolutional Neural Network Segmentation Method to Traditional Atlas Segmentation for CT Head and Neck Contours
A Kruzer*, H Wan, M Bending, C Halley, D Darkow, D Pittock, N Cole, P Jacobs, AS Nelson, MIM Software Inc., Cleveland, OH
PO-GeP-P-22Standardizing I-131 Outpatient Risk Stratification and Workflows
N Busse1*, K McCullough2, S Franz3, N Bunda-Randall4, (1) Denver Health, Denver, CO, (2) Colorado Associates in Medical Physics (CAMP), Colorado Springs, CO, (3) Colorado Associates in Medical Physics (CAMP), Berthoud, CO, (4) Colorado Associates in Medical Physics (CAMP), Pueblo, CO
PO-GeP-P-32Evaluation of Spatial Resolution in Fluoroscopic Imaging Compared to Digital Subtraction Angiography
D Ragan1*, T Maguire1, S Schafer2, S Tutton1, S White1, A Gorman3, Y Lu1, Y Liu1, (1) Medical College of Wisconsin, Milwaukee, WI, (2) SIEMENS Medical Systems, Madison, WI, (3) Froedtert Health, Milwaukee, Wi
PO-GeP-P-37Staff Exposure During a HDR Endobronchial Brachytherapy Stuck Source Event Requiring Surgical Extraction: A Full Scale Simulation
N Octave*, M Goulet, P Duguay-drouin, M Lagace, A Dagnault, CISSS - Chaudiere-Appalaches, Levis, QCCA,
PO-GeP-P-61Dosimteric Impact of Distortion Correction of MR Image Set for Cranial Stereotactic Radiation Treatments
R Sandhu*, C Knill, I Grills, P Chinnaiyan, Z Seymour, Beaumont Health System, Royal Oak, MI
PO-GeP-P-79Clinical Experiences with Varians Triggered Imaging Via Auto Beam Hold Function for Intra-Fraction Motion Monitoring of Soft Tissues with Implanted Fiducials
M Hermansen1, M Baca1, T Origer1, L Cooper1, R Clayton1, T Sokolowski1, A Markovic2, A Sadeghi1*, (1) Banner MD Anderson, Gilbert, AZ, (2) Banner MD Anderson, Fort Collins, CO
PO-GeP-P-83Accuracy of Electron Monte Carlo Dose Calculations
L Vazquez1*, C Huerta Hernandez2, O Calvo3, S Oddiraju4, (1) Piedmont Health Care,Atlanta, GA, (2) GRP, Temple, TX, (3) Advanced Physics Solutions, San Antonio, TX, (4) Baylor Scott and White Clinics, Round Rock, TX
PO-GeP-P-87Dose Verification of Constant Dose Rate and Constant Gantry Speed Arc Therapy (CDRCAS-IMAT) Planning Using 2D Detector Array
R Zhang1, W Bai2*, Y Feng1, W Jiang1, H Meng1, (1)Department of Biomedical Engineering, Tianjin University, Tianjin, China (2)The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei
PO-GeP-P-88Evalutaion of Two Detector Arrays for CDR-CAS-IMAT Pretreatment Quality Assurance
W Bai1, Y Gao2, R Zhang1*, S Wang1, J Guo1, X Han1, (1) The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China,(2) Department of Gastroenterology, Hebei General Hospital, Shijiazhuang,China
PO-GeP-P-92On The Effectiveness and Accuracy of .Decimal's 3D Scanner System
J Newton*, K Li, John R. Marsh Cancer Center, Hagerstown, MDAF,
PO-GeP-P-94The Effect of Different Aperture Shape Controller Modes in Eclipse Photon Optimizer for Lung SBRT Planning
J Fang1*, Z Zhang2, D Zhu1, K Yu3, (1) Saint Thomas Rutherford Hospital, Murfreesboro, TN, (2) University of Miami, Coral Gables, FL, (3) John Patrick University Of Health & Applied Sciences, South Bend, IN
PO-GeP-T-10A Comparison of Prediction Models in Autocorrelated Processes for Quality Assurance
j Lah1*, G Kim2, D Shin3, (1) Myongji Hospital, Hanyang University College of Medicine, Goyang-si, KR, (2) University of California, San Diego, La Jolla, CA,(3) National Cancer Center, Goyang-si, KR
PO-GeP-T-19A DNA-Based Detector for Quantification of DNA Damage From Ionizing Radiation
M Tambasco*, San Diego State University, San Diego, CA
PO-GeP-T-21A Dosimetric Comparison of TBI with a Dedicated Co-60 Irradiator to Tomotherapy-Based TBI and TMLI
S Ahmed1*, M Dominello1,2, A Hammoud2, A Nalichowski1,2, J Burmeister1,2, (1) Wayne State University School of Medicine, Detroit, MI, (2) Karmanos Cancer Institute, Gershenson ROC, Detroit, MI
PO-GeP-T-32A Method for the Daily Quality Assurance of a Six-Degree-Of-Freedom Treatment Table
O Dona*, Y Wang, A Xu, C Wuu, Columbia University, New York, NY
PO-GeP-T-41A Novel and Innovative Device to Retract Rectum During Radiation Therapy Applications of Pelvic Tumors
E Parsai1, G Giri2*, M Elahinia3, P Bayatimalayeri4, D Elliott5, (1) University of Toledo Medical Center, Toledo, OH, (2) University Of Toledo, ,,(3) University of Toledo, Toledo, ,(4) University of Toledo, Toledo, OH, (5) University of Toledo Medical Center, Toledo,
PO-GeP-T-45A Novel Conformity Index to Minimize Volume Effects: Application in SRS/SRT
S Oh*, Y Liang, H Lee, D Lee, J Sohn, Allegheny Health Network, Pittsburgh, PA
PO-GeP-T-59A Planning Study to Reduce Heart Dose with Deep Inspiration Breath Hold (DIBH) for Left Breast Electron Boost
L Zhang*, G Li, W Lu, S Powell, L Hong, Memorial Sloan Kettering Cancer Center, New York, NY
PO-GeP-T-88Adaptive Proton Therapy Dose Evaluation and Planning Using Cone Beam Computed Tomography
C Ackerman*, P Tsai, h Zhai, M Kang, C Apinorasethkul, D Bhatti, H Lin, New York Proton Center, New York, NY
PO-GeP-T-89Adrenal SBRT Treatment Using ExaCradle Dampening System
F Clemente-Gutierrez*, F San Miguel Avedillo, P Chamorro Serrano, Hospital Central de la Defensa "Gomez Ulla", Madrid, MES,
PO-GeP-T-100An Intelligent IMRT Optimization Method Based On Radiobiological Effects Oriented by Dose Prediction
X Lu1*, Y Li2, A Wu1, M Qi1, Y Liu1, L Zhou1, T Song1, (1) Southern Medical University, Guangzhou, Guangdong, CN, (2) Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, CN
PO-GeP-T-131Atlas-Based PTV Contouring for Total Marrow Irradiation
A Cherpak1,2,3*, K Chytyk-Praznik1,2,3, L Mulroy1,2, (1) Nova Scotia Health Authority, Halifax, NS, CA (2) Department Of Radiation Oncology, Dalhousie University, Halifax, NS, CA (3) Department of Physics and Atmospheric Sciences, Dalhousie University, Halifax, NS, CA
PO-GeP-T-154Beyond TG119: Providing Multiple Institutional Planning and Dosimetry Comparisons for Stereotactic Radiosurgery Commissioning
J Burmeister1*, R Culcasi2, G Baran3, M Dominello4, A Molineu5, S Benedict6, R Popple7, B Salter8, K Yenice9, (1) Karmanos Cancer Center / Wayne State University School of Medicine, Detroit, MI, (2) Karmanos Cancer Center / Wayne State University School of Medicine, Detroit, MI, (3) Karmanos Cancer Center, Detroit, MI, (4) Wayne State University School of Medicine, Detroit, MI, (5) UT MD Anderson Cancer Center, Houston, TX, (6) UC Davis Cancer Center, Sacramento, CA, (7) Univ Alabama Birmingham, Birmingham, AL, (8) University Utah, Salt Lake City, UT, (9) University of Chicago, Chicago, IL
PO-GeP-T-158BolusVisionOnline: 3D Soft Bolus Printing Utilizing Eclipse Scripting API (ESAPI)
J Tan*, T Chiu, S Jiang, UT Southwestern Medical Center, Dallas, TX
PO-GeP-T-165Can We Use a Decay Plan for GammaPod APBI Treatments?
M Guerrero*, B Zhang, E Nichols, S Becker, Univ. of Maryland School Of Medicine, Baltimore, MD
PO-GeP-T-168CdTe-Based Semiconductor Detector for Correction-Less Small-Field Dosimetry
F Akbari*, D Shvydka, E Parsai, University of Toledo Medical Center, Toledo, OH
PO-GeP-T-184Clinical Context of Neutron Dose Contribution From 10MV FFF Vs 15MV Photon Beams
J Vickress1,2*, G Zeng1, R Sankreacha1, (1) Trillium Health Partners/the Credit Valley Hospita, Mississauga, ON, CA (2) University of Toronto Department of Radiation Oncology, Toronto, Ontario, CA
PO-GeP-T-186Clinical Experience Implementing An Ion Chamber Array for Monthly Beam Constancy Versus Ion Chamber in Water
D Barbee*, S Taneja, A Rea, NYU Langone Health, New York, NY
PO-GeP-T-188Clinical Implementation of a New a Single-Isocenter Multiple-Target Cranial Optimization Algorithm
C Knill*, R Sandhu, R Halford, L Lin, Z Seymour, I Grills, P Chinnaiyan, Beaumont Health System, Royal Oak, MI
PO-GeP-T-194CNC-Laser Assisted Automated Electron Cutout Fabrication with 3D Print-Based Quality Assurance and Computer Vision
T Chiu1*, D Shrestha1, Z Xiong1, H Wang2, M Lin1, Y Park1, A Godley1, R Reynolds1, (1) UT Southwestern Medical Center, Dallas, TX, (2) Texas Tech University, Lubbock, TX
PO-GeP-T-198Commissioning of a 3D Scanner for Digitizing and Ordering Electron Cutouts Using 3-D Printed Phantoms
M Malin*, S Taneja, D Barbee, NYU Langone Medical Center, New York, NY
PO-GeP-T-200Commissioning of a Free Breathing Amplitude Gated Treatment Program Using Varian TrueBeam 2.7 Imaging Capabilities
S Hickling*, A Veres, M Grams, Mayo Clinic, Rochester, MN
PO-GeP-T-206Comparative Study of SRS End-To-End QA Processes of a Diode Array Device and An Anthropomorphic Phantom Loaded with Radiochromic XD Film
S Lim*, M Chan, L KUO, T Li, X Li, A Ballangrud, D Lovelock, Memorial Sloan Kettering Cancer Center, New York, NY
PO-GeP-T-233Comparison of Two Commercial Software Packages for Y-90 SIRT Dosimetry
M Studenski*, M Witte, B Spieler, M Georgiou, L Portelance, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
PO-GeP-T-237Comprehensive Calibration and Evaluation of a Cone-Beam CT On a Pre-Clinical Small Animal Radiation Research Platform
Y Huang1*, Y Zhong1, C Wang1, Y Gonzalez1, C Shen1, X Jia1, (1) The University of Texas Southwestern Medical Ctr, Dallas, TX
PO-GeP-T-241Cone Beam Computed Tomography (CBCT) Image Quality Assurance: Establishing a Quantitative Program
S Taneja*, D Barbee, A Rea, M Malin, NYU Langone Medical Center, New York, NY
PO-GeP-T-249Creating a High Quality Reference Data Set for SRS Cones
N Knutson*, Y Hao, T Mazur, M Schmidt, F Reynoso, Washington University School of Medicine, St Louis, MO
PO-GeP-T-250Creation and Validation of An Interactive Electron Cutout Library
K Crotteau*, M Keohane, A Riegel, Northwell Health, Lake Success, NYAF,
PO-GeP-T-251Currency-Based Shielding of Electron Beams
A Rea*, G Jennings, B Cooper, D Barbee, NYU Langone Health, New York, NY
PO-GeP-T-253Cyberknife MultiPlan IMRT QA Comparison Between MapCHECK2 and SRS MapCHECK
W Feng1*, J Feng2, J Yang3, J Zhou4, C Yang5, L Zhou6, J Sakellakis7, P Abbass8, (1) Saint Barnabas Medical Center, Livingston, NJ, (2) Philadelphia Cyberknife, Havertown, PA, (3) Alliance Imaging/Alliance Oncology, Havertown, PA, (4) Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, (5) Monmouth Medical Center, Long Branch, NJ, (6) Livingston, NJ, (7) Clara Maass Medical Center, Montville, NJ, (8) 21st Century Oncology, Jupiter, FL
PO-GeP-T-273Determination of Confidence Limits for Linac-Based SRS Point, Composite and Per-Field Measurements From a Clinically Comprehensive SRS Test Suit
G Baran1*, R Culcasi1, M Dominello2, J Burmeister1,2, (1) Karmanos Cancer Institute, Detroit, MI (2) Wayne State University School of Medicine, Detroit, MI
PO-GeP-T-291Development of An Age-Scalable Colon Model with Substructures for Colon Radiation Therapy Dosimetry in Large Pediatric Cohorts for Late-Effects Studies
C Owens1,2*, A Gupta1,2, S Shrestha1,2, S Smith1, C Lee3, C Peterson1,4, A Paulino5, S Kry1,2, D Followill1,2, R Howell1,2, (1) Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA, (2) The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX, USA, (3) Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD, USA, (4) Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA, (5) Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
PO-GeP-T-299Development of Patient Height-Specific 3D Age-Scaling Factors to Generate DICOM Computational Phantoms for Retrospective Late-Effects Studies
A Gupta1,2*, C Owens1,2, S Shrestha1,2, S Smith1, R Weathers1, R Howell1,2, (1) Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA, (2) The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX, USA
PO-GeP-T-308Does Radiomics Have the Potential to Assess KV-CBCT Image Performance Acquired From Phantom Data Used for Daily QA?
M Shenouda*, N Baughan, J Cruz Bastida, E Pearson, H Al-Hallaq, The University of Chicago, Chicago, IL
PO-GeP-T-309Dose Calculation Accuracy Comparison of BrainLab Monte Carlo and Eclipse Acuros XB for SRS/SBRT Planning
J Yoon*, A Gray, The University of Rochester Cancer Cen, Rochester, NY
PO-GeP-T-313Dose-Rate and "SSD" Dependence of Commercially Available Diamond and Diode Detectors
A Khan*, W Culberson, L DeWerd, Dept of Med Phys, School of Medicine and Public Health, Univ of Wisc-Madison
PO-GeP-T-317Dosimetric Advantages of Partial Prostate SBRT Compared to Whole-Gland SBRT
C Langmack1*, B Traughber1,2, M Kharouta1,2, R Ellis1,3, E Fredman1,2, L Ponsky1,2, M Machtay1,2, T Baig1, K Xu1, T Podder1,2, (1) University Hospitals, Cleveland, OH, (2) Case Western Reserve University, Cleveland, OH, (3) Penn State Cancer Institute, Hershey, PA,
PO-GeP-T-325Dosimetric Comparison Between Two Dose Calculation Algorithms Available in Gamma Knife Planning System (the Traditional TMR10 and the New Convolution Algorithms)
M Fager1*, A Carlsson Tedgren1, M Gubanski2, P Forander3, H Benmakhlouf1, (1) Department of Radiotherapy Physics and Engineering, Karolinska University Hospital, Solna, AB, SE, (2) Department Of Radiation Oncology, Karolinska University Hospital,Solna, AB, SE,(3) Department Of Neurosurgery, Karolinska University Hospital,Solna, AB, SE,
PO-GeP-T-327Dosimetric Comparison of Gamma Knife(R) IconTM and Linear Accelerator-Based FSRT Plans for the Re-Irradiation of Large (> 14 Cc) Recurrent Glioblastomas
M Schelin*, H Liu, W Shi, Y Yu, K Mooney, Thomas Jefferson University, Philadelphia, PA
PO-GeP-T-340Dosimetric Evaluation of a New Integrated SBRT/IMRT Treatment System
D wu1*, A Eldib2, L Chen3, Q Jiang4, B Wang5, T Dos Santos6, C Ma7, (1) The People`s Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, CN, (2) Fox Chase Cancer Center, Philadelphia, PA, (3) Fox Chase Cancer Center, Philadelphia, PA, (4) The First Affliated Hospital of Chongqing Medical University, Chongqing, Chongqing, CN, (5) Temple University Hospital, Philadelphia, PA, (6) AdventHealth at Gordon, Calhoun, GA, (7) Fox Chase Cancer Center, Philadelphia, PA
PO-GeP-T-373Efficient Estimation of Electron Cutout Factor Using Eclipse Electron Monte Carlo Model
F Kalantari1, G Narayanasamy1, S Morrill1, G Deshazer1, S Gholami2, E Galhardo1*, (1) University of Arkansas for Medical Sciences, Little Rock, AR, (2) Cancer institute-Imam Khomeini hospital-TUMS, Tehran, ,IR,
PO-GeP-T-375Efficient Quality Assurance Method for Multi-Lesion Stereotactic Radiosurgery Treatment with a Single Isocenter
H Kang*, S Gros, R Patel, Loyola Univ Medical Center, Maywood, IL
PO-GeP-T-393Evaluation and Commissioning of the SDX Spirometer Based System for Use in Proton Pencil Beam Scanning Treatment Under Deep Inspiration Breath-Hold
L Perles*, M Hobson, A Gutierrez, Miami Cancer Institute, Miami, FL
PO-GeP-T-394Evaluation of a Commercial Tungsten Eye Shield for Orthovoltage Beams Using Gafchromic Film
M Shafiq ul Hassan1, H Chen1*, J Bond1, D Allen1, Z Chen1, (1) Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut, USA
PO-GeP-T-399Evaluation of a Novel EPID Based Dosimetry System for Verification of VMAT QA in Comparison with Traditional 3D Detector Quality Assurance
R Varadhan1*, S Way2, C Overbeck3, M Bedoya4, A Jahagirdar5, R Malmin6, R Malmin7, (1) Minneapolis Radiation Oncology, ,,(2) Minneapolis Radiation Oncology, ,,(3) Minneapolis Radiation Oncology, ,,(4) Minneapolis Radiation Oncology, ,,(5) Edina High School, ,,(6) Minneapolis Radiation Oncology,
PO-GeP-T-404Evaluation of Correlation Between Tumour Volume and Plan Quality Metrics in Stereotactic Radiotherapy
N Loganathan*, V Goel, Max Super Speciality Hospital, Shalimarbagh, New Delhi, Delhi INDIA,
PO-GeP-T-408Evaluation of New Markers for the Interstitial Plastic Component in MR-Based Cervix Brachytherapy
J Chimeno Hernandez1, F Blazquez1, G Montoliu2, J Bosque2, G Jose1, J Ruiz Rodriguez1, V Carmona Meseguer1, F Lliso-Valverde1, J Perez-Calatayud1*, (1) Radiotherapy Department,Hospital Universitari i Politecnic La Fe, Valencia,Spain , (2) Radiodiagnostic Department, Hospital Universitari I Politecnic La Fe, Valencia, Spain
PO-GeP-T-411Evaluation of PTW MicroSilicon Diode Detector for Small Field Dosimetry with the Elekta Versa HD Linear Accelerator
J Kim, C Hong, H Kang*, Yonsei University College of MedicineSeoulKR
PO-GeP-T-413Evaluation of Respiratory Phase Shifts Between Lung Tumor and External Marker Motions Using a 320-Slice Volumetric 4D-CT
Y Akino1*, O Suzuki2, H Shiomi2, F Isohashi2, Y Seo2, K Tamari2, T Hirata2, K Ogawa2, (1) Osaka University Hospital, Suita, Osaka, JP, (2) Osaka University Graduate School of Medicine, Suita, Osaka, JP
PO-GeP-T-420Evaluation of the RayStation Monte Carlo Dose Algorithm for Small-Field Surface-Collimated Electrons
J Fenoli1*, M Oakey1, S Andrew2, R McGurk1, (1) University of North Carolina Chapel Hill, Chapel Hill, NC, (2) Rex UNC Radiation Oncology, Raleigh, NC
PO-GeP-T-425Evaluation of Trends and Performance Indicators for IROC Houston's SRS Head Phantom
H Mehrens*, T Nguyen, M Glenn, D Branco, S Edward, S Hartzell, N Hernandez, P Alvarez, A Molineu, P Taylor, D Followill, S Kry, MD Anderson, Houston, TX
PO-GeP-T-432Examining the Capability of Precision, IPlan, Raystation and Monaco to Satisfy the UNC Treatment Planning Protocol of Stereotactic Radiosurgery for Multi-Lesion Brain Cases
E Schreiber1*, M Dance1, S Stathakis2, A Licon2, N Papanikolaou2, S Das1, P Mavroidis1, (1) Univ North Carolina, Chapel Hill, NC, (2) Mays Cancer Center - MD Anderson Cancer Center, San Antonio, TX
PO-GeP-T-437Experimental Study for the Absorbed-Dose to Water of Heavy Ion Beam by An Ionization Method
S Jin, K Wang*, J Zhang, z wang, National Institute of Metrology, Beijing, Beijing,CN,
PO-GeP-T-444Feasability Study Of Stereotactic Intracranial Treatments On Halcyon Treatment Machine
F JOSSERAND PIETRI1*, D NGUYEN2, V Passerat3, N Barbet2, M Khodri2, (1) Radiotherapy Center ORLAM, MERMOZ, Lyon, 69, FR, (2) Radiotherapy centers of ORLAM group, Macon, ,FR, (3) Radiotherapy Centers Of Orlam Group, Villeurbanne,,FR
PO-GeP-T-456Feasibility Study of Total Lymph Node Planning with Halcyon Using Three Isocenters
W Feng1, M Needham2, G Huebscher3, S Zhang4, W Qi5, A Grann6*, (1) Saint Barnabas Medical Center, Livingston, NJ, (2) Saint Barnabas Medical Center, Livingston, NJ, (3) Saint Barnabas Medical Center, Livingston, NJ, (4) Alliance Imaging/alliance Oncology, Havertown, PA, (5) Alliance Imaging/alliance Oncology, Havertown, PA, (6) Saint Barnabas Medical Center, Livingston, NJ
PO-GeP-T-457Feasibility Study to Use HDR Interstitial Brachytherapy for the Treatment of Small Skin Cancer at Nose
Z Gu*, J Robbins, A Kakakhel, Y Kim, University of Arizona, Tucson, AZ
PO-GeP-T-468Full Automation of Spine Stereotactic Radiosurgery/Stereotactic Body Radiation Therapy (SRS/SBRT) Planning Using Varian Eclipse Scripting API
J Teruel*, M Malin, A McCarthy, E Sulman, J Silverman, D Barbee, Department of Radiation Oncology, NYU Langone Health, New York, NY
PO-GeP-T-475Gross Patient Error Detection Via Cine Transmission Dosimetry
N Dang1*, V Leandro Alves1, M Ahmed2, J Siebers1, (1) University of Virginia, Charlottesville, VA, (2) Vanderbilt University Medical Center, Nashville, TN
PO-GeP-T-479How Much CTV Coverage Is Lost When the PTV Margin Is Zero?
J Chang1*, (1) Northwell Health and Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Lake Success, NY
PO-GeP-T-481Image Quality of Commercial CT Metal Artifact Reduction Algorithms and a Novel In-House Algorithm for Head and Neck (H&N) Cancer and the Dosimetric Implications On Proton Therapy
D Branco*, S Kry, P Taylor, X Zhang, J Rong, S Frank, D Followill, The University of Texas MD Anderson Cancer Center, Houston, TX
PO-GeP-T-485Imaging the Effective Point of Measurement of a Dosimeter Inside a Phantom
S Cyriac1*, J Liu2, E Calugaru2, J Chang2,3, (1) KIMS Cancer Care and Research Center Pvt Ltd, Trivandrum, KL, IN, (2) Northwell Health and Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Lake Success, NY, (3) Hofstra University, Hempstead, NY
PO-GeP-T-495Impact of the Change in the Mean Excitation Energy of Diamond On Energy Deposition in Different Beam Qualities
V Kaveckyte1,2*, A Carlsson Tedgren1,2, J M Fernandez-Varea3, (1) Linkoping University, Linkoping, Sweden, (2) Karolinska University Hospital, Stockholm, Sweden, (3) Barcelona University, Barcelona, Spain
PO-GeP-T-504Implementing Radiation Safety Practices During the Decline, Expiration and Post Mortem of An I-131 Patient
J Howley*, M Seddon, M Hough, A Donohoe, C Inbornone, AdventHealth, Altamonte Springs, FLAF,
PO-GeP-T-505Implementing Volume-Staged Radiosurgery for Treatment of Large-Volume Arteriovenous Malformations On a Conventional Linac-Based System
E Sudentas*, Mount Sinai West, New York, NY
PO-GeP-T-507Implications of Metallic Spine Hardware On Dosimetry and Image Verification in Spine SBRT
E Tchistiakova*, H Morrison, K Thind, N Ploquin, Tom Baker Cancer Center, Calgary, AB,CA
PO-GeP-T-520Initial Steps Towards A Clinical FLASH Radiotherapy System: Pediatric Whole Brain Irradiation with 40 MeV Electrons
D Breitkreutz1*, M Shumail2, K Bush1, S Tantawi2, P Maxim3, B Loo1, (1) Department of Radiation Oncology, Stanford University, California, USA (2) Stanford National Accelerator Laboratory, Stanford University, California, USA (3) Department of Radiation Oncology, Indiana University, Indiana, USA
PO-GeP-T-531Investigating How Various Parameters Influence Secondary Neutron Spectra Produced During High-Energy Electron-Beam Treatments
F Mathew1*, G Al Makdessi2, L Montgomery1, J Kildea1, (1) McGill University, Montreal, QC, CA, (2) McGill University Health Centre, Montreal, QC, CA
PO-GeP-T-534Investigating the Impact of Inter-Fractional Variations to the Delivered Dose to Esophagus During VMAT for Lung Cancer Using CBCT-Based Deformable Image Registration
P Mavroidis1*, C Trustram Eve1, A Walters1, A Weiner1, S Stathakis2, J Hammers1, S Das1, K Wang1, (1) Univ North Carolina, Chapel Hill, NC, (2) Mays Cancer Center - MD Anderson Cancer Center, San Antonio, TX
PO-GeP-T-537Investigation of Monte Carlo User Codes for the Simulation of the Xoft Axxent Electronic Brachytherapy Source: A Comparative Study
A Walter*, L DeWerd, Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI
PO-GeP-T-549Investigation On the Use of Our 3D Age-Scaling Functions (ASF) to Scale Whole-Body Regions to Any Arbitrary Age
A Gupta1,2*, C Owens1,2, S Shrestha1,2, C Lee3, P Balter1, S Smith1, R Weathers1, S Kry1,2, D Followill1,2, J Long1,4, R Howell1,2, (1) Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA, (2) The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX, USA, (3) Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD, USA, (4) Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA,
PO-GeP-T-560Lens Dose to Standing Patients Treated With Electrons to the Hand
J Van Schelt*, Rush University Medical Center, Chicago, IL
PO-GeP-T-565LINAC-Based Stereotactic Radiosurgery Dosimetric Outcomes Dictated by Isocenter Settings
J Zhang1*, S Lee2, W Inouye2, W Lien1, (1) Southern California Permanente Medical Group, Los Angeles, CA, (2) Va Long Beach Healthcare System,Long Beach, CA
PO-GeP-T-580Mixed Electron-Photon Radiation Therapy Delivery and Quality Assurance
VJ Heng1*, M Renaud2, M Serban3, J Seuntjens1, (1) McGill University, Montreal, QC, CA, (2) Polytechnique Montreal, Montreal, QC, CA, (3) McGill University Health Centre, Montreal, QC, CA
PO-GeP-T-590Monte Carlo Investigation of the Perspective Direction Dependence of Cherenkov Emission
T Dou1*, E Larochelle2, T Zhu3, (1) Texas Center for Proton Therapy, Irving, TX, (2) Dartmouth College, Hanover, NH (3) University Pennsylvania, Philadelphia, PA
PO-GeP-T-614Optimisation Strategy and Conformity Guidance for Mono-Isocentre SRS VMAT of Targets
K Blythe*, D Eaton, Guys And St Thomas Nhs Foundation Trust
PO-GeP-T-618Optimization of Treatment Isocenter Location in Radiation Therapy to Minimize the Impacts of Rotational Uncertainties
T Cui1*, Y Zhou2, N Yue3, I Vergalasova4, Y Zhang5, J Zhu6, K Nie7, (1) Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, (2) Fudan University Zhongshan Hospital, Shanghai, 31, CN, (3) Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, (4) Rutgers, Cancer Institute of New Jersey, New Brunswick, NJ, (5) Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, (6) Rutgers cancer institute of New Jersey, New Brunswick, NJ, (7) Rutgers Cancer Institute of New Jersey, New Brunswick, NJ
PO-GeP-T-629Patient Specific QA for External Beam Radiotherapy Using the HYPERSCINT Plastic Scintillation Detector
M Goulet*, CISSS - Chaudiere-Appalaches, Levis, QC, CA
PO-GeP-T-631Patient SRS Plans Verification of the New O-Ring System (Halcyon™)
D NGUYEN1*,J FARAH3, F JOSSERAND PIETRI2, M KHODRI1, (1) Radiotherapy centers of ORLAM group, MACON,FR, (2) Radiotherapy centers of ORLAM group, LYON,FR, (3) Vision RT Ltd, LONDON,UK
PO-GeP-T-640Physical Characteristics of Annihilation and Related Background Photons Produced in X-Ray Irradiation with Medical Linear Accelerator
K Takahashi*1, T Hanada2, H Miyauchi1,4, Y Tanaka1, M Hashimoto3, T Hasegawa3, (1)Graduate School of Medical Sciences, Kitasato University, Kanagawa, Japan, (2)Department of Radiology, Keio University School of Medicine, Tokyo, Japan, (3) Faculty of Allied Health Sciences, Kitasato University, Kanagawa, Japan, (4)Cancer Institute Hospital of JFCR, Tokyo, Japan
PO-GeP-T-643Portal Dosimetry Comparison for Three Beam-Matched Varian TrueBeam LINACs
K Yang1*, W Jiang2, R Patel2,1, S Sharma1, A Ju1, (1) East Carolina University, Greenville, NC, (2) 21st Century Oncology, Greenville, NC
PO-GeP-T-647Preclinical Application of Electronic Portal Imaging Device
Akbar Anvari,1,2 Amit Sawant2 (1) Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, Philadelphia, PA, USA (2) Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD, USA
PO-GeP-T-651Pre-Clinical Testing On a Novel Film OrthoChromic OC-1 for Quality Assurance in Radiation Therapy
W Feng1*, A Chu2, C Shi3, (1) Saint Barnabas Medical Center, Tenafly, NJ, (2) Montefiore Medical Center, Bronx, NY, (3) Memorial Sloan Kettering Cancer Center, Marlboro, NJ
PO-GeP-T-663Proton Energy Spectrum-Based Linear Energy Transfer Measurement
W Yao1*, (1) University of Maryland School of Medicine, Baltimore, MD
PO-GeP-T-673Quality Correction Factors of Small-Cavity Ionization Chambers in Small MR-Guided Radiotherapy Beams
Y Cervantes1,2*, I Billas3, S Duane3, H Bouchard1,2,4, (1) Universite de Montreal, Departement de physique, Montreal, QC, CA (2) Centre de recherche du Centre hospitalier de l'Universite de Montreal, QC, CA, (3) National Physical Laboratory, Teddington, UK,(4)Centre hospitalier de l'Universite de Montreal, Departement de radio-oncologie, Montreal, QC
PO-GeP-T-680Quantitative Assessment Based On a Yearlong Survey of the Production of Radioactive Materials in Mevion Hyperscan Proton Therapy System
B Chiang*, G Macdurmon, S Ahmad, Y Chen, University of Oklahoma Health Sciences Center, Oklahoma City, OK
PO-GeP-T-684Radiation Planning and the Dosimetric Impact On An Orthotopic and Syngeneic Murine Model of Breast Cancer
S Rusu1*, B Janic2, S Brown3, G Valadie4, J Ewing5, I Chetty6, N Wen7, (1) Henry Ford Hospital, Detroit, MI, (2) Henry Ford Hospital System, Grosse Point Woods, MI, (3) Henry Ford Hospital, Detroit, MI, (4) Wayne State University, Detroit, MI, (5) Henry Ford Hospital System, Detroit, MI, (6) Henry Ford Health System, Canton, MI, (7) Henry Ford Health System, Detroit, MI
PO-GeP-T-692Rapid Hippocampal Sparing HyperArc VMAT Radiosurgery for Multiple Brain Metastases
A Palmiero*, L Critchfield, t hunter, W St Clair, M Randall, D Pokhrel, University of Kentucky, Lexington, KY
PO-GeP-T-697Real-Time In-Vivo Dose Tracking for Scalp Cutaneous Lymphoma Treated with Electron: First Time Application of E-PSD for Patient Dose Tracking
Z Xu1*, C Langmack1, A Bhatt1,2, T Baig1, B Traughber1,2, E Harris1,2, T Podder1,2, (1) University Hospital Seidman Cancer Center, Cleveland, OH,(2) Case Western Reserve University, Cleveland, OH
PO-GeP-T-713SABR Pre-Treatment Verification of Multiple Dosimeters (alanine, PTW60019, NanoDot, and TLD100H)
N Esen1*, P Ramachandran2, P Archer1, M Geso4, (1) Peter MacCallum Cancer Centre,Victoria,Australia, (2) Princess Alexandra Hospital, Brisbane, QLD,Australia. (3) RMIT University, Medical Radiations Science Discipline.
PO-GeP-T-714Scanning Beam-Based Dose Delivery for Rotating Gamma Ray Systems for Intra- and Extra-Cranial SRS/SBRT
J Xu*, C Ma, Fox Chase Cancer Center, Philadelphia, PA
PO-GeP-T-715Scripting API-Based Frame Coordinate Calculator for Stereotactic Body Radiotherapy
Y Park1*, Z Iqbal1, A Pompos1 (1) UT Southwestern Medical Center, Dallas, TX
PO-GeP-T-726Single Isocenter Multiple Target Stereotactic Radiosurgery Commissioning Experience From Concept to Patient Specific QA
M Piantino*, D Piantino, J Anderson, M Cohen, R Prahbu, S Burri, Atrium Health Levine Cancer Institute - Morehead, Charlotte, NC
PO-GeP-T-728SLD Repair Impact On Treatment Effectiveness of Proton Therapy with Various Cell Specific Parameters
K Kasamatsu1*, T Matsuura2,3,4, S Tanaka2,4, K Umegaki2,3,4, (1) Hokkaido University Graduate school of Biomedical Science and Engineering, Sapporo, JP, (2) Hokkaido Universty Faculty of Engineering, Sapporo, Hokkaido, JP, (3) Hokkaido University Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education (GI-CoRE), Sapporo, Hokkaido, JP, (4) Hokkaido University Hospital Proton Beam Therapy Center, Sapporo, Hokkaido, JP
PO-GeP-T-729Small Field Stereotactic Radiosurgery Fluence Measurement for Cone and MLC-Based Plans Using SRS MapCHECK
C Geraghty1*, T Li2, J Carroll3, B Hasson4, (1) Anne Arundel Medical Center, Annapolis, MD, (2) ,Annapolis, MD, (3) Versant Medical Physics & Radiation Safety, Tewksbury, MA, (4) Anne Arundel Medical Center, Annapolis, MD
PO-GeP-T-731Some Unique Radiation-Safety Related Challenges with Installation of a MR-Linac
G Pang, Odette Cancer Centre and Department of Radiation Oncology, University of Toronto, Toronto, ON, CA
PO-GeP-T-733Sparing Submandibular Gland Following Gland Transfer in Head and Neck Cancer Patients: Effect of Day-To-Day Setup Uncertainty
V Moiseenko1*, T Atwood2, C Coffey3, P Hua4, M Cornell5, P Sanghvi6, (1) UC San Diego, La Jolla, CA, (2) University of California San Diego, La Jolla, CA, (3) University Of California, San Diego, ,,(4) University Of California, San Diego, ,,(5) UC San Diego, San Diego, CA, (6) University Of California, San Diego,
PO-GeP-T-735Spinal Stereotactic Radiotherapy Treatment Plan Quality and Delivery Comparison Between a Conventional Linac and a 1.5T MR-Linac
M Aima*, E Han, N Hughes, T Briere, D Yeboa, P Castillo, J Wang, J Yang, S Vedam, The University of Texas MD Anderson Cancer Center, Houston, TX
PO-GeP-T-757TG-119 Equivalent for SRS: Standardizing Linac Based Stereotactic Radiosurgery (SRS) Dosimetric Commissioning Using a Clinically Comprehensive Set of Intracranial Optimization Problems
R Culcasi1*, G Baran1, M Dominello2, J Burmeister1,2, (1) Karmanos Cancer Institute, Detroit, MI (2) Wayne State University School of Medicine, Detroit, MI
PO-GeP-T-763The Dosimetric Characteristics of Titanium Implants On Proton Spine SBRT
M Kang1*, J Yamada2, L Hu1, C Ackerman1, C Apinorasethkul1, P Park1, J Moreau1, G Yu1,I Choi1, C B Simone II1, H Lin1, (1) New York Proton Center, New York, NY, (2) Memorial Sloan-Kettering Cancer Center, New York, NY
PO-GeP-T-764The Dosimetric Effect of Vertebral Body Replacement/Fixation Devices On Spine SBRT: A Monte Carlo Study
X Chen1*, J Fan2, I Veltchev1, J Li3, J Meyer1, C Ma1, (1) Fox Chase Cancer Center, Philadelphia, PA, (2) Inova Health System, Fairfax, VA, (3) OUR United RT Group, Xi'an, China
PO-GeP-T-769The Effect of Single-Walled Carbon Nanotubes Over the Efficiency of the Protective Garment Against Diagnostic X-Ray
R Zohdiaghdam1, M Mahmoudian2, N Riyahi-Alam3*, s salimi4, (1) Urmia University of Medical Sciences, ,,IR, (2) Nanotechnology Research Institute, Urmia University, Urmia, Iran, ,,IR, (3) Department of Medical Physics & Biomedical Engineering, School if Medicine, Tehran University of Medical Sciences(TUMS), Tehran, Iran, Tehran, ,IR, (4) Urmia University of Medical Sciences, Urmia, Iran, ,,IR
PO-GeP-T-770The Effect of Spatiotemporal Variations in Thermal Neutron Transmission On Yb-169 Source Re-Activation Efficiency
RT Flynn1*, QE Adams1, KM Hopfensperger2, (1) Department of Radiation Oncology, University of Iowa, Iowa City, IA, (2) Department of Biomedical Engineering, The University of Iowa, Iowa City, IA
PO-GeP-T-772The Impact of Envelope Smoothing On Photon and Electron Beam Profile Characteristics
K Jiang*, M MacFarlane, M Guerrero, S Becker, S Chen, S Lee, Department of Radiation Oncology, University of Maryland, Baltimore, MD
PO-GeP-T-818Understanding Variations in Dose Fall-Off for Low Energy Electrons Vs. Mid and High Energies in Presence of Different Cutouts at Different SSDs
E Salari*, E Parsai, D Shvydka, University of Toledo Medical Center, Toledo, OH
PO-GeP-T-824Use of Octavius 4D for the Patient Specific Dose Validation of Single-Isocenter Multiple Brain Metastasis Stereotactic Radiosurgery
J McCulloch*, J Pawlowski, N Kirby, K Rasmussen, Z Shi, P Myers, S Stathakis, N Papanikolaou, D Saenz, Mays Cancer Center - MD Anderson Cancer Center, San Antonio, TX
PO-GeP-T-835Vaginal Cylinder HDR Brachytherapy: Effect of Inhomogeneity On Dose Calculation
M Meftahi*, W Song, Virginia Commonwealth University, Richmond, VA
PO-GeP-T-838Validation of a New Tool for Testing Spatial Accuracy of Off-Axis Beam Apertures Used in Single-Isocenter Stereotactic Treatment of Multiple-Metastases of the Brain
D Pinkham1*, A Murray2, H Kudrolli2, S Hancock3 (1) Yale School of Medicine, New Haven, CT, (2) Sun Nuclear Corporation, Melbourne, FL, (3) Southeast Missouri Hospital, Cape Girardeau, MO
PO-GeP-T-843Validation of CT Calibration for Proton Therapy Using Water-Based Materials
M Cohilis1*, E Sterpin1,2, K Salvo3, T Depuydt2, J Lee1, K Souris1, (1) UCLouvain, Institut de Recherche experimentale et Clinique, Center of Molecular Imaging Radiotherapy and Oncology, Bruxelles, BE, (2) KULeuven, Department of Oncology, Laboratory of Experimental Radiotherapy, Leuven, BE, (3) UZ Leuven, Leuven, BE
SU-A-TRACK 4-0Anatomical and Clinical Diagnostic Reference Levels; An Update
K Kanal1*, J Damilakis2*, V Tsapaki3*, (1) University Washington, Seattle, WA, (2) University of Crete, Crete, GR, (3) International Atomic Energy Agence, Vienna, Vienna, AT
SU-B-TRACK 1-3Quantifying the Effectiveness of Non-Leaded Protective Drapes in Interventional Radiology and Cardiology
M Robins*, K Little, X Jiang, X Yang, J Zhang, D Hintenlang, Ohio State Univ, Columbus, OH
SU-B-TRACK 1-5(Un)Likelihood of Skin Injury When Substantial Radiation Doses Are Exceeded
M Vanderhoek*, C Morrison, Henry Ford Health System, Detroit, MI
SU-B-TRACK 2-45DCT Reconstruction Accuracy and Elasticity Estimation Performance for Low Dose Fast-Helical Free Breathing CT
M Lauria1*, B Stiehl1, D O'Connell1, S Hsieh2, I Barjaktarevic1, A Santhanam1, D Low1, (1) UCLA, Los Angeles, CA, (2) Mayo Clinic, Rochester, MN
SU-B-TRACK 2-5A Quantitative Analysis of Lung Elastography Using Free Breathing Fast Helical CT Scans
B Stiehl*, M Lauria, I Barjaktarevic, D Low, A Santhanam, UCLA, Los Angeles, CA
SU-C-TRACK 1-1Optimization Gap: Iterative Reconstruction Does Not Deliver Actual CT Dose Reduction in a Large, Diverse Fleet of Clinical CT Scanners
J Bell1*, C Smitherman2, T Petrone2, W Moloney3, D Jordan1, (1) University Hospitals, Cleveland, OH, (2) Petrone Associates, LLC, Staten Island, NY, (3) Bio-Med Associates, Inc, Yardley, PA
SU-C-TRACK 1-2A Practical Model for Equilibrium Dose Measurement
K Grizzard*, D Vergara, J Moroz, M Hoerner, Yale New Haven Hospital and Yale University School of Medicine, Department of Radiology and Biomedical Imaging, New Haven, CT
SU-C-TRACK 1-6Implementation of Tube Current Modulation Into An Organ Dose Calculator for CT Patients
C Lee1*, Y Yeom2, J Atkinson3, L Folio4, (1) National Cancer Institute, Rockville, MD, (2) National Cancer Institute, Rockville, MD, (3) Georgia Institute of Technology, Atlanta, GA,(4) National Institutes of Health, Bethesda, MD
SU-CD-TRACK 2-7A Random Forest Machine-Enabled Diagnostic Algorithm Combing Quantitative CT Radiomics and Clinical Factors for the Identification of Patients with Corona Virus Disease-19 (COVID-19): A Discovery and Validation Study
X Li1,2*, J Li3, X Zhao4, Z Ding1, B Yang1, Q Deng1, S Ma2, Y Kuang5, (1) Hangzhou Cancer Hospital, Hangzhou First People's Hospital Group, Hangzhou, China, (2) Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China, (3) Zhejiang University of Traditional Chinese Medicine, Hangzhou, China, (4) Hangzhou Municipal Health Commission, Hangzhou, China, (5) University of Nevada, Las Vegas, NV
SU-CD-TRACK 2-8Multi-Block Discriminant Analysis of Integrative 18F-FDG-PET/CT Radiomics for Predicting Circulating Tumor Cells in Early Stage Non-Small Cell Lung Cancer Treated with Stereotactic Body Radiation Therapy
S Lee*, G Kao, S Feigenberg, J Dorsey, M Frick, S Jean-baptiste, C Uche, Y Fan, Y Xiao, University of Pennsylvania, Philadelphia, PA
SU-D-TRACK 1-3Image Quality Assessment of a MR-Compatible E4D Ultrasound Probe for Image Guided Radiation Therapy
S Jupitz1*, J Zagzebski1, J Holmes1, D Mills2, W Lee2, H Chan2, A Patel2, L Smith2, B Bednarz1, (1) University of Wisconsin, Madison, WI, (2) GE Global Research
SU-D-TRACK 1-4Dosimetric Evaluation of Synthetic-CT Generated by Multi-Sequence MR Images for Head and Neck MR-Only Radiotherapy
M Qi1*, Y Li2, A Wu1, X Lu1, Y Liu1, L Zhou1, T Song1, (1) Southern Medical University, Guangzhou, Guangdong, CN, (2) Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, CN
SU-E-TRACK 1-1BEST IN PHYSICS (IMAGING): Comparison of Loss Functions in Dual-Domain Convolutional Neural Networks for Low-Dose CT Enhancement
KJ Chung1-3*, R Souza4,5, R Frayne4,5, TY Lee1-3, (1) University of Western Ontario, London, ON, CA, (2) Robarts Research Institute, London, ON, CA, (3) Lawson Health Research Institute, London, ON, CA, (4) University Of Calgary, Calgary, AB, CA, (5) Foothills Medical Centre, Calgary, AB, CA
SU-E-TRACK 1-2Phantom-Based Training Framework for Deep Convolutional Neural Network CT Noise Reduction
N Huber*, A Missert, H Gong, S Leng, L Yu, C McCollough, Mayo Clinic, Rochester, MN
SU-E-TRACK 1-7An Optimal Timing Protocol for Improved CT Pulmonary Angiography
Y Zhao*, L Hubbard, S Malkasian, P Abbona, S Molloi, University of California-Irvine, Irvine, CA
SU-F-TRACK 1-7The Application of Partial Domain Adaptation Transfer Learning in the Classification of Retinopathy Using OCT Images From Different Datasets
J Wu1*, D Li1, YM Yang2, (1) Shandong Normal University, Jinan, Shandong, CN, (2) UCLA, Los Angeles, CA
SU-F-TRACK 2-2Automatic On-Board Liver Tumor Localization by Cone-Beam Projections and a Deformation-Driven Technique (U-Net-Bio)
Y Zhang*, J Wang, X Huang, Y Zhang, UT Southwestern Medical Center, Dallas, TX
SU-F-TRACK 2-3Cycle Consistent VoxelMorph-Based Deformable Image Registration (DIR) for Real Time Ultra-Quality 4D Image Synthesis
H Xiao*, G Ren, J Zhang, X Teng, J Cai, Hong Kong Polytechnic University, Hong Kong, 91
SU-F-TRACK 2-7Synthesizing of Lung Tumors in Computed Tomography Images
T O'Briain1*, K Moo Yi1, S Chitsazzadeh2, M Bazalova-Carter1, (1) University of Victoria, Victoria, BC, CA, (2) BC Cancer - Victoria, Victoria, BC, CA
SU-F-TRACK 3-8Towards High-Sensitivity Multi-Point Fiber Bragg Gratings Dosimeter for Radiotherapy
M Lebel-Cormier1,2,3*, T Boilard1,4, M Bernier1,4, L Beaulieu1,2,3, (1) Laval University, Quebec, QC,CA (2) Centre de recherche sur le cancer, Universite Laval, QC, CA, (3) CHU de Quebec - Laval University and CRCHU de Quebec, QC, CA, (4) Center for Optics, Photonics, and Lasers (COPL), QC, CA
TH-A-TRACK 5-2Dosimetry of Ultra-Short High Dose-Per-Pulse Very High Energy Electron Beams
M McManus1, 2*, F Romano3, 1, N Lee1, F Wilfrid4, 6, G Antonio4, Gary Royle2, H Palmans5, 1, A Subiel1, (1) National Physical Laboratory, London, GB ,, (2) University College London, London, GB ,,(3) Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Catania, IT ,,(4) Cern, Geneva, CH ,, (5) MedAustron, Wiener Neustadt, AT ,, (6) CEA-Saclay, IRFU, FR
TH-A-TRACK 5-5Magnetic-Modulated Radiation Therapy with High Energy Electron Beams
M Chen*, L Ma, X Gu, W Lu, UT Southwestern Medical Center, Dallas, TX
TH-AB-TRACK 4-1Evaluation of a Novel Sequential 4D Scan Technique for Reduced Motion Artifacts in Respiratory-Gated CT Scans
J Cammin1*, R Morris2, (1) Washington University, School of Medicine, St. Louis, MO, (2) Washington University, School of Medicine, St. Louis, MO
TH-AB-TRACK 4-4Deep-Learning Based Auto-Detection of Brain Metastases for Stereotactic Radiosurgery
Z Tian*, S Kahn, W Curran, T Liu, X Yang, Winship Cancer Institution, Emory University, Atlanta, GA
TH-AB-TRACK 4-7Deep Learning-Based Auto-Segmentation of Swallowing and Chewing Structures
A Iyer*, M Thor, R Haq, J Deasy, A Apte, Memorial Sloan Kettering Cancer Center, New York, NY
TH-AB-TRACK 4-11Using Hyperpolarized Xe-129 Gas-Exchange MRI to Guide Functional Avoidance Planning in Thoracic Radiation Therapy
L Rankine1,2*, Z Wang2, E Bier2, C Kelsey3, L Marks1, B Driehuys2, S Das1, (1) University of North Carolina School of Medicine, Chapel Hill, NC, (2) Duke University, Durham, NC, (3) Duke University Medical Center, Durham, NC
TH-AB-TRACK 4-14CycleGAN-Based Cone-Beam CT Correction for Adaptive Proton Therapy of Pediatric Patients
J Uh*, C Wang, S Acharya, C Hua, St. Jude Childrens Research Hospital, Memphis, TN
TH-C-TRACK 1-1Adaptive Spectral Inconsistency Modeling for Photon-Counting Detector CT
Binxiang Qi, Hewei Gao*, Tsinghua University, Haidian Dist, 11CN,
TH-C-TRACK 1-2Establishing Quality Control Action Limit for Spectral CT Imaging Using ACR CT Phantom and Longitudinal Measurements
X Duan*, Y Zhang, J Anderson, UT Southwestern Medical Center, Dallas, TX
TH-C-TRACK 1-3Evaluation of the Modulation Transfer Function From a Model-Based and a Statistical-Based Hybrid Iterative Reconstruction Algorithm Using Single-Energy and Dual-Energy CT
E Olguin*, S Leon, C Olguin, M Arreola, University of Florida, Gainesville, FL
TH-C-TRACK 1-7Synthetic Dual Energy CT Images From Single Energy CT Image for Proton Radiotherapy
S Charyyev, T Wang*, Y Lei, B Bradshaw Ghavidel, J Beitler, M McDonald, W Curran, T Liu, J Zhou, X Yang, Emory Univ, Atlanta, GA
TH-C-TRACK 4-0NCRP 184 - Radiation Exposure to Patients in the United States
M Mahesh1*, D Frush2*, D Miller3*, (1) Johns Hopkins University, Baltimore, MD, (2) Stanford University, Palo Alto, CA, (3) Food and Drug Administration, Silver Spring, MD
TH-D-TRACK 1-1Clinical Translation of a Novel Megavoltage Multi-Layer Imager
T Harris1,3*, J Seco2,3, D Ferguson1, P Huber4, M Lehmann4, M Shi1,5, M Jacobson1, I Valencia Lozano1, M Myronakis1, D Morf4, P Baturin6, R Fueglistaller4, R Berbeco1, (1) Brigham and Womens Hospital & Dana Farber Cancer Institute, Boston, MA, (2) BioMedical Physics in Radiation Oncology, DKFZ, Heidelberg, Germany, (3) Department of Physics, University of Heidelberg, Heidelberg, Germany, (4) Varian Medical Systems, Baden-Dattwil, Switzerland, (5) University of Massachusetts Lowell, Newton, MA, (6) Varian Medical Systems, Palo Alto, CA,
TH-D-TRACK 1-2Deep Learning-Augmented Novel Radioluminescence Imaging System for Quality Assurance of Multileaf Collimators (MLC)
M jia*, X Li, Y Yang, L Wang, L Xing, Stanford University, Stanford, CA
TH-D-TRACK 1-3Performance Enhancement of An Experimental Benchtop X-Ray Fluorescence Imaging System by Using the Latest Generation Single Crystal Cadmium Telluride Detector
H Moktan*, S Jayarathna, S H Cho, The University of Texas MD Anderson Cancer Center, Houston, TX
TH-D-TRACK 1-4In Vivo Longitudinal Quantification of Radiopacity of a Nanoparticle-Infused Biodegradable Inferior Vena Cava Filter in a Porcine Model
J Perez1*, J Damasco1, M Jacobsen2, A Melancon3, M Eggers4, S Huang1, R Layman2, M Melancon1, (1) Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, (2) Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, (3) Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, (4) Adient Medical Inc., 12234 Shadow Creek Parkway, Building 8, Suite 106, Pearland, TX 77584
TH-D-TRACK 4-3Integration of Ex Vivo Optical Reporter Imaging with in Vivo Radiologic Imaging: A Practical Multiscale Method for Measuring Whole Brain Disease Burden
M Scarpelli*, D Healey, S Mehta, C Quarles, Barrow Neurological Institute, Phoenix, AZ
TH-D-TRACK 5-6Impact of CT Scanner Acquisition and Reconstruction Methods On Pediatric Organ Autosegmentation Model Generalizability
Philip M. Adamson1*, Petr Jordan1, Vrunda Bhattbhatt1, Taly Gilat Schmidt2, (1) Varian Medical Systems, 3120 Hansen Way, Palo Alto, CA, USA, (2) Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, WI
TH-D-TRACK 6-1An Integrated Quality Assurance Phantom for Frameless Single-Isocenter Multitarget Stereotactic Radiosurgery: A Multi-Institutional Trial
D Capaldi1*, T Nano2, L Skinner3, C Chuang4, P Dubrowski5, L Xing6, A Yu7, (1) Stanford University, Stanford, CA, (2) University of California, San Franisco, San Francisco, CA, (3) Stanford University Cancer Center, Stanford, CA, (4) Stanford, Stanford, CA, (5) Stanford University, San Jose, CA, (6) Stanford Univ School of Medicine, Stanford, CA, (7) Stanford University Cancer Center, Stanford, CA
TH-D-TRACK 6-2Analytical Setup Margin for Spinal SBRT Based On Measured Errors
A Barron1*, A Copeland2, J Fontenot1,2, (1) Mary Bird Perkins Cancer Center, Baton Rouge, LA, (2) Louisiana State University, Baton Rouge, LA
TU-B-TRACK 1-3Protocol Optimization for Microcalcification Detectability in Breast CT: A Phantom Study Using Model Observers
A Hernandez1*, A Becker2, S Lyu2, C Abbey3, J Boone1,4, (1) Department of Radiology, University of California Davis, (2) Biomedical Engineering Graduate Group, University of California Davis, (3) Department of Psychological & Brain Sciences, University of California Santa Barbara, (4) Department of Biomedical Engineering, University of California Davis
TU-C-TRACK 1-1BEST IN PHYSICS (IMAGING): A KV-MV CBCT Field of View Enlargement Technique Using a Multi-Layer MV Imager and Regularized Poly-Energetic Correction
M Jacobson1*, M Lehmann2, P Huber2, M Shi3, M Myronakis1, D Ferguson1, I Lozano1, T Harris1, P Baturin4, R Fueglistaller2, C Williams1, D Morf2, R Berbeco1 (1) Brigham and Women's Hospital, Dana-Farber Cancer Institute, and Harvard Medical School, Boston, MA (2) Varian Medical Systems, Baden-Dattwil, Switzerland (3) University of Massachusetts, Lowell, Lowell MA (4) Varian Medical Systems, Palo Alto, CA
TU-C-TRACK 1-2First Experimental Implementation of Adaptive CaRdiac COne BEAm Computed Tomography (ACROBEAT)
T Reynolds1*, O Dillon1, J Prinable1, B Whelan2, P Keall1, R O'Brien1, (1) ACRF Image X Institute, University of Sydney,Sydney, NSW, AU, (2) Siemens Healthineers, Forcheim, BY, DE
TU-C-TRACK 1-3Towards Distortion-Free Intracranial Image Guided Interventional Procedures with ACROBEAT (Adaptive CaRdiac COne BEAm Computed Tomography)
T Reynolds1*, J Prinable1, O Dillon1, B Whelan2, R O'Brien1, P Keall1, (1) ACRF Image X Institute, University of Sydney,Sydney, NSW, AU, (2) Siemens Healthineers, Forcheim, BY, DE
TU-C-TRACK 1-4Resolution Enhancement for Cone Beam CT Using Focal Spot Deconvolution
L Shi*, A Wang, Stanford University, Stanford, CA
TU-C-TRACK 1-5Quick Low Dose 4D CBCT: Real Patient Results of Respiratory Motion Guided Imaging and Motion Compensated Reconstruction
O Dillon1*, B Lau1, S Alnaghy1, P Keall1, S Vinod2,3, A Wallis3, S Smith3, A George3, J Sonke4, R O'Brien1, (1) University of Sydney, Sydney, NSW, AU (2) University Of New South Wales, Sydney, NSW, AU (3) Liverpool Hospital Sydney, Sydney, NSW, AU (4) Netherlands Cancer Institute, Amsterdam, NL
TU-C-TRACK 1-6Motion Artifact Impact On Dose Calculation Using CBCT
S Scheib1*, I Peterlik2, P Paysan3, S Scheib4, Varian Medical Systems Imaging Laboratory, Daettwil Ag, CH,
TU-C-TRACK 1-74D Radiomics: Impact of 4D Image Quality On Radiomic Analysis
Z Zhang*, M Huang, Z Jiang, Y Chang, J Torok, F Yin, L Ren, Duke University Medical Center, Cary, NC
TU-C-TRACK 5-0Matters of the Heart: From Cardiac Radioablation to Cardiac Sparing and Toxicity
C Robinson1*, M Cao2*, C Glide-Hurst3*, (1) Washington University, Saint Louis, MO, (2) UCLA School of Medicine, Los Angeles, CA, (3) Henry Ford Health System, Detroit, MI
TU-C-TRACK 5-1Clinical Outcomes after Noninvasive Cardiac Radioablation for Ventricular Tachycardia (VT)
C Robinson1*, M Cao2*, C Glide-Hurst3*, (1) Washington University, Saint Louis, MO, (2) UCLA School of Medicine, Los Angeles, CA, (3) Henry Ford Health System, Detroit, MI
TU-C-TRACK 5-2Imaging technologies for Stereotactic Ablative Radiotherapy (SABR) of Cardiac Ventricular Tachycardia
C Robinson1*, M Cao2*, C Glide-Hurst3*, (1) Washington University, Saint Louis, MO, (2) UCLA School of Medicine, Los Angeles, CA, (3) Henry Ford Health System, Detroit, MI
TU-C-TRACK 5-3Leveraging advanced technologies for improved cardiac sparing
C Robinson1*, M Cao2*, C Glide-Hurst3*, (1) Washington University, Saint Louis, MO, (2) UCLA School of Medicine, Los Angeles, CA, (3) Henry Ford Health System, Detroit, MI
TU-CD-TRACK 2-5Comparing V/Q SPECT Dose-Function Metrics with Regard to Radiation-Induced Lung Toxicity in NSCLC Patients Undergoing RT
D Owen1*, Y Sun2, B Viglianti3, I El Naqa4, J Balter5, S Jolly6, R Ten Haken7, F Kong8, M Matuszak9, (1) Univ Michigan, Ann Arbor, MI, (2) University Of Michigan Radiation Oncology, ,,(3) ,,,(4) University of Michigan, Ann Arbor, MI, (5) Univ Michigan, Ann Arbor, MI, (6) University of Michigan, Ann Arbor, MI, (7) University of Michigan, Ann Arbor, MI, (8) Case Western Reserve University- School of Medicine, Cleveland, OH, (9) University of Michigan, Ann Arbor, MI
TU-CD-TRACK 2-7Subregion-Based Radiomic Analysis of Preoperative Multi-Modal MR Images for Improving Glioblastoma Survival Outcome Prediction
J Fu1*, K Singhrao1, D Ruan1, X Qi1, J Lewis2, (1) Department of Radiation Oncology, UCLA, Los Angeles, CA, (2) Cedars-Sinai Medical Center, Beverly Hills, CA
TU-CD-TRACK 2-8Normalizing Delta Radiomics for Early Prediction of Treatment Response During Chemoradiation Therapy of Pancreatic Cancer
H Nasief*, W Hall, B Erickson, X Li, Medical College of Wisconsin, Milwaukee, WI
TU-CD-TRACK 2-9The Association Between Clinical Factors and Biochemical Outcome for High-Risk Prostate Cancer Patients
L Sun1,2*, H Quon1,2, V Tran1, P Chen2, C Kirkby1,3, W Smith1,2 (1) University of Calgary, Calgary, AB, CA, (2) Tom Baker Cancer Centre, Calgary, AB, CA, (3) Jack Ady Cancer Centre, Lethbridge, AB, CA
TU-D-TRACK 1-6Assessing Digital Image Receptor Performance Using the Noise-Response Method: A Feasibility Study for Routine Quality Control
G Fong*, K Wunderle, Cleveland Clinic Foundation, Cleveland, OH
TU-D-TRACK 3-3First-In-Canada Non-Invasive Cardiac Radio-Ablation: Physics Considerations
K Lekx-Toniolo*, G Cook, M Lacelle, G Fox, E Ali, The Ottawa Hospital, Ottawa, ON, Canada
TU-EF-TRACK 2-2BEST IN PHYSICS (MULTI-DISCIPLINARY): Accelerating Image Reconstruction On An MRI-Linac with AUTOMAP
D Waddington1*, N Hindley1, N Koonjoo2, T Reynolds1, B Zhu2, C Paganelli3, M Rosen2, P Keall1, (1) ACRF Image X Institute, Faculty of Medicine and Health, The University of Sydney, NSW, AU, (2) A. A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA, (3) Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, IT.
TU-EF-TRACK 3-7BEST IN PHYSICS (THERAPY): Insights Into Planning Techniques Mastered by An Autoplanning Robot: Can An AI Planning Agent Be Interpretable and Tractable?
J Zhang1*, C Wang1, Y Sheng1, F Yin1, Y Ge2, Q Wu1, (1) Duke University Medical Center, Durham, NC, (2) The University of North Carolina at Charlotte, Chartlotte, NC
TU-EF-TRACK 4-0Advanced MR in Clinic
X Zhou1*, Y Jung2*, H Liu3*, S Einstein4*, (1) University Illinois at Chicago, Chicago, IL, (2) University of California, Davis, Sacramento, CA, (3) UT MD Anderson Cancer Center, Houston, TX, (4) Wellspan Health, York, PA
WE-A-TRACK 3-4Comparison of the Dosimetric Accuracy of Proton Breast Plans Delivered with VisionRT and CBCT Setup
M MacFarlane1*, K Jiang1, M Mundis1, E Nichols1, S Chen1, N Biswal1, (1) University of Maryland School of Medicine, Baltimore, MD,
WE-AB-TRACK 1-0How Low Can CT Dose Go? Future Dose Reduction Technologies
J Maier1*, M McNitt-Gray2*, G Gang3*, F Noo4*, M Kachelriess5*, (1) German Cancer Research Center, Heidelberg, DE, (2) David Geffen School of Medicine at UCLA, Los Angeles, CA, (3) Johns Hopkins University, Baltimore, MD, (4) University Utah, Salt Lake City, UT, (5) DKFZ Heidelberg, FS05, Heidelberg, BW, DE
WE-B-TRACK 2-2Dual-Gated CT for Stereotactic Arrhythmic Radioablation (STAR)
N Morton*, P Keall, R O'Brien, University of Sydney, Sydney, NSW, AU,
WE-B-TRACK 2-3Patient-Specific Deep Learning Model for the Augmentation of Digital Tomosynthesis (DTS) for Image Guided Radiation Therapy
Z Jiang1*, Y Chang2, Z Zhang3, F Yin4, L Ren5, (1) Duke Univeristy, Durham, NC, (2) Duke University, Durham, NC, (3) Duke University, Durham, NC, (4) Duke University, Durham, NC, (5) Duke University Medical Center, Cary, NC
WE-B-TRACK 6-0Are You the One Dropping the Ball? Tools, Tips and Tricks for Improving Workplace Efficiency in the Clinical and Research Setting
P Basran1*, L Beaulieu2*, T Bjarnason3*, (1) Cornell University, Ithaca, NY, (2) Centre Hospitalier Univ de Quebec, Quebec, QC, CA, (3) Interior Health, Kelowna, BC, CA
WE-B-TRACK 6-1From the “procrastination equation” to “getting things done”
P Basran1*, L Beaulieu2*, T Bjarnason3*, (1) Cornell University, Ithaca, NY, (2) Centre Hospitalier Univ de Quebec, Quebec, QC, CA, (3) Interior Health, Kelowna, BC, CA
WE-B-TRACK 6-2Tools, tips and tricks for improving research productivity
P Basran1*, L Beaulieu2*, T Bjarnason3*, (1) Cornell University, Ithaca, NY, (2) Centre Hospitalier Univ de Quebec, Quebec, QC, CA, (3) Interior Health, Kelowna, BC, CA
WE-B-TRACK 6-3IT locked you down? Tips for improving clinical productivity using typical health authority infrastructure
P Basran1*, L Beaulieu2*, T Bjarnason3*, (1) Cornell University, Ithaca, NY, (2) Centre Hospitalier Univ de Quebec, Quebec, QC, CA, (3) Interior Health, Kelowna, BC, CA
WE-C-TRACK 1-2Impact of Volumetric 4D-CT Motion Artifact Reduction On Ventilation Imaging
H Young1,3,4*, T Lee2,3,4, S Gaede1,2, (1) London Regional Cancer Program, London, ON, CA, (2) Lawson Health Research Institute, London, ON, CA, (3) Robarts Research Institute, London, ON, CA, (4) University of Western Ontario, London, ON, CA
WE-C-TRACK 1-3Contrast Timing Optimization for a Two-Volume Dynamic CT Pulmonary Perfusion Technique
Y Zhao, L Hubbard, S Malkasian, P Abbona, S Molloi*, University of California-Irvine, Irvine, CA
WE-C-TRACK 1-4Validation of a Two-Volume Dynamic CT Renal Perfusion Technique
B Flynn*, Y Zhao, L Hubbard, S Malkasian, P Abbona, S Molloi, University of California-Irvine, Irvine, CA
WE-C-TRACK 1-6Improved Pileup Compensation Electronics for Photon Counting Detectors
S Hsieh1*, K Iniewski2, (1) Mayo Clinic, Rochester, MN, AF, (2) Redlen Technologies, Saanichton, BC, CA
WE-D-TRACK 1-1Predicting Net 90Y Administered Activity in 90Y-Radioembolization From Post-Therapy 90Y-SPECT/CT Images
M. Allan Thomas1*, Benjamin P. Lopez1, Adam Neff3, Armeen Mahvash2, S. Cheenu Kappadath1, (1) Department of Imaging Physics, UT MD Anderson Cancer Center, Houston, TX, (2) Department of Interventional Radiology, UT MD Anderson Cancer Center, Houston, TX, (3) MIM Software, Inc., Cleveland, OH
WE-D-TRACK 1-2Planning Dosimetry for 90Y Therapy: Evaluating the Predictive Power of 99mTc-MAA and the Partition Model
M. Allan Thomas1*, Armeen Mahvash2, Mohamed Abdelsalam2, Ahmed Kaseb2, S. Cheenu Kappadath1, (1) Department of Imaging Physics, UT MD Anderson Cancer Center, Houston, TX, (2) Department of Interventional Radiology, UT MD Anderson Cancer Center, Houston, TX
WE-D-TRACK 3-3An Examination of the Mutational Signature of X-Ray Irradiation Using Single-Cell Whole Genome Sequencing
J J W Yeo*, R Li, Y C Wang, N Ybarra, J Kildea, I Ragoussis, McGill University, Montreal, QC, CA
WE-D-TRACK 3-4Groundwork for Potential Organ Dosimetry System Revisions in the Japanese Atomic Bomb Survivor Cohorts
K Griffin1*, C Paulbeck2, T Sato3, S Funamoto4, H Cullings4, S Egbert5, S Domal2, A Endo3, N Hertel6, W Bolch2, C Lee1, (1) National Cancer Institute, Rockville, MD, (2) University of Florida, Gainesville, FL, (3) Japan Atomic Energy Agency, Tokai-mura, JP, (4) Radiation Effects Research Foundation, Hiroshima, JP, (5) Consultant, (6) Georgia Institute of Technology, Atlanta, GA
WE-E-TRACK 2-2From CT Scans to 3D Prints: Feasibility of 3D Printing CT Radiomic Phantoms for Standardization and Validation of Quantitative CT Measurements
U Mahmood1*, A Apte1, C Kanan2, D Bates1, G Corrias1, L Mannelli1, J Oh1, Y Erdi1, J Deasy1, A Dave1, (1) Memorial Sloan Kettering Cancer Center, (2) Rochester Institute Of Technology
WE-E-TRACK 2-4Classification of LGG Tumor IDH1 Gene Mutation Status Using T2/FLAIR MRI Texture Information
M Safari1, 2*, L Archambault1, 2, A Ameri3, A Fatemi4, M Beigi5, (1) Department of Physics, Universite Laval, Quebec, QC, CA, (2) CHU de Quebec - Universite Laval, Quebec, QC, CA, (3) Department Of Clinical Oncology, Shahidbeheshti University, (4) University of Mississippi Med. Center, Jackson, MS, (5) Novin Medical Radiation Institute, Haft Tir Martyrs Hospital, Tehran, Iran.
WE-E-TRACK 2-5Correlation Between Hematocrit and Blood CT Number Changes During Radiation Therapy
X Chen*, H Saeed, X Li, Medical College of Wisconsin, Milwaukee, WI
WE-E-TRACK 2-6Deciphering Metabolic Features to Target Neuroblastoma Using Machine Learning
R Wang1,2,3*, Y Zhang1,4, P Pachnis4, H Vu4, K Wang1,3, R Deberardinis4, J Wang1,3, (1) Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX. (2) School of Artificial Intelligence, Xidian University, Xi'an, People's Republic of China. (3) Medical Artificial Intelligence and Automation (MAIA) Lab, University of Texas Southwestern Medical Center, Dallas, TX. (4) Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX.
WE-E-TRACK 2-7Phenotyping Potential of Topologically Invariant Betti Numbers for Epidermal Growth Factor Receptor Mutations in Non-Small Cell Lung Cancer Patients
K Ninomiya1*, H Arimura1, W Chan2, K Tanaka3, S Mizuno1, N Muhammad Gowdh2, N Yaakup2, C Liam2, C Chai4, K Ng2, (1)Kyushu University, (2)University Of Malaya, (3)Kyushu University Hospital, (4) University Malaysia Sarawak
WE-E-TRACK 4-0Current Status and Issues with Dental and Maxillofacial CBCT: Potential Methodologies for Quality Control and Management of This Technology
D Mihailidis1*, E Gingold2*, R Pizzutiello3*, (1) University of Pennsylvania, Philadelphia, PA, (2) Thomas Jefferson University, Philadelphia, PA, (3) Victor, NY
WE-E-TRACK 4-1Suggestions for testing evaluation of dental and maxillofacial CBCT
D Mihailidis1*, E Gingold2*, R Pizzutiello3*, (1) University of Pennsylvania, Philadelphia, PA, (2) Thomas Jefferson University, Philadelphia, PA, (3) Victor, NY
WE-E-TRACK 4-2Dose metrics and practical dose measurements for dental and maxillofacial CBCT
D Mihailidis1*, E Gingold2*, R Pizzutiello3*, (1) University of Pennsylvania, Philadelphia, PA, (2) Thomas Jefferson University, Philadelphia, PA, (3) Victor, NY
WE-E-TRACK 4-3Regulatory and Accreditation Considerations
D Mihailidis1*, E Gingold2*, R Pizzutiello3*, (1) University of Pennsylvania, Philadelphia, PA, (2) Thomas Jefferson University, Philadelphia, PA, (3) Victor, NY
WE-F-TRACK 1-3Accelerating MRI Acquisition Using Cascaded Attention UNet with Prior Information
V Agarwal*, J Balter, Y Cao, Univ Michigan, Ann Arbor, MI
WE-F-TRACK 2-1Monte Carlo Simulation of a KV Scattered X-Ray Imaging-Based Real-Time In-Treatment Image Guidance Method for Radiation Therapy
Y Huang1*, K Yang2, X Li2, B Liu2, H Liu1, Y Lai1, C Shen1, X Jia1, (1) The University of Texas Southwestern Medical Ctr, Dallas, TX, (2) Harvard Medical School, Massachusetts General Hospital, Boston, MA.
WE-F-TRACK 4-0Diagnostic Imaging and 100 MSv+ Doses
W Sensakovic1*, M Rehani2*, M Lipford3*, T Szczykutowicz4*, (1) Mayo Clinic, Phoenix, AZ, (2) Massachusetts General Hospital, Boston, MA, (3) University of Wisconsin, Madison, WI, (4) University Wisconsin-Madison, Madison, WI
WE-F-TRACK 4-1Do patient receive 100mSv+ from diagnostic scanning?
W Sensakovic1*, M Rehani2*, M Lipford3*, T Szczykutowicz4*, (1) Mayo Clinic, Phoenix, AZ, (2) Massachusetts General Hospital, Boston, MA, (3) University of Wisconsin, Madison, WI, (4) University Wisconsin-Madison, Madison, WI
WE-F-TRACK 4-2Patients with over 100 mSv doses: Experience from large scale studies to assess the magnitude
W Sensakovic1*, M Rehani2*, M Lipford3*, T Szczykutowicz4*, (1) Mayo Clinic, Phoenix, AZ, (2) Massachusetts General Hospital, Boston, MA, (3) University of Wisconsin, Madison, WI, (4) University Wisconsin-Madison, Madison, WI
WE-F-TRACK 4-3Dose Reduction Opportunities in MDCT
W Sensakovic1*, M Rehani2*, M Lipford3*, T Szczykutowicz4*, (1) Mayo Clinic, Phoenix, AZ, (2) Massachusetts General Hospital, Boston, MA, (3) University of Wisconsin, Madison, WI, (4) University Wisconsin-Madison, Madison, WI
WE-F-TRACK 4-4Round-Table Discussion
W Sensakovic1*, M Rehani2*, M Lipford3*, T Szczykutowicz4*, (1) Mayo Clinic, Phoenix, AZ, (2) Massachusetts General Hospital, Boston, MA, (3) University of Wisconsin, Madison, WI, (4) University Wisconsin-Madison, Madison, WI