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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # | show all

Keywords: Quality Assurance
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-M-14A Patient Risk Model to Determine the Optimal Frequency of Quality Control for Radiotherapy Machines
M Ma*, J Dai, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Beijing,100021,China
BReP-SNAP-M-104Multicenter Characterization of MRIs Used for Radiation Therapy: The Collaborative Quality Assurance Program
L Conroy1*, C Foottit2, B Zhang1,3, A Elzibak4, R Hunter5, P Rapley6, J Kraus Himmelman7, E Gutierrez7, T Tadic1, A McNiven1, D Letourneau1, (1) The Princess Margaret Cancer Centre, University Health Network, Toronto, ON, CA, (2) The Ottawa Hospital, Ottawa, ON, CA, (3) Stronach Regional Cancer Centre, Newmarket, ON, CA (4) Sunnybrook Health Sciences Centre, Odette Cancer Centre, Toronto, ON, CA, (5) Juravinski Cancer Centre, Hamilton, ON, CA, (6) Thunder Bay Regional Health Sciences Center, Thunder Bay, ON, CA, (7) Ontario Health (Cancer Care Ontario), Toronto, ON, CA
BReP-SNAP-M-106Novel Angle Descriptor Projection Overlap Volume for Improved Quality Assurance of Lung Cancer Radiotherapy Treatment Plans
J Zhang1*, Y Yang2, Y Chen2, J Zhang3, M Chen2, (1) The Hong Kong Polytechnic University, Hung Hom, Kowloon, HKSAR, (2) Zhejiang Cancer Hospital, University Of Chinese Academy Of Sciences, Hangzhou, Zhejiang, CHN, (3) Duke University Medical Center, Durham, NC
BReP-SNAP-M-142Towards Best Practice Guidelines for Reference Dosimetry in a 1.5 T MR-Linac
V Iakovenko1*, B Keller1, H Nusrat1, A Sahgal2, A Sarfehnia1, (1) Sunnybrook Health Sciences Centre, Odette Cancer Centre, Department of Medical Physics; University of Toronto, Department of Radiation Oncology, Toronto, ON, CA, (2) Sunnybrook Health Sciences Centre, Odette Cancer Centre, Department of Radiation Oncology, ON, CA
BReP-SNAP-M-148Using An Independent Dose Calculation System to Optimize Clinical Thresholds and Reduce the Number of Physical Dose Measurements Required for Patient-Specific Quality Assurance
K Hasse*, B Ziemer, Y Natsuaki, G Valdes, E Hirata, T Solberg, J Scholey, A Witztum, UCSF Comprehensive Cancer Center, San Francisco, CA
BReP-SNAP-M-150Value Proposition of Online Adaptive Radiotherapy: Plan Fidelity and Deliverability
K Mittauer1*, A Shepard2, L Bayouth2, J Bayouth2, (1) Miami Cancer Institute, Miami, FL, (2) University of Wisconsin-Madison, Madison, WI, (2) University of Wisconsin-Madison, Madison, WI (2) University of Wisconsin-Madison, Madison, WI
BReP-SNAP-T-14A Multi-Institutional End-To-End Dosimetry Mail Audit for Orthovoltage Small Animal Irradiators
M Gronberg1*, R Tailor2, S Smith3, S Kry4, D Followill5, S Stojadinovic6, J Niedzielski7, P Lindsay8, S Krishnan9, J Aguirre10, T Fujimoto11, C Taniguchi12, R Howell13, (1) The University of Texas MD Anderson Cancer Center, Houston, TX, (2) The University of Texas MD Anderson Cancer Center, Houston, TX, (3) The University of Texas MD Anderson Cancer Center, Houston, TX, (4) The University of Texas MD Anderson Cancer Center, Houston, TX, (5) The University of Texas MD Anderson Cancer Center, Houston, TX, (6) The University of Texas Southwestern Medical Center, (7) The University of Texas MD Anderson Cancer Center, Houston, TX, (8) Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, CA, (9) Mayo Clinic Jacksonville, Jacksonville, FL, (10) The University of Texas MD Anderson Cancer Center, Houston, TX, (11) The University Of Texas MD Anderson Cancer Center, (12) The University Of Texas MD Anderson Cancer Center, (13) The University of Texas MD Anderson Cancer Center, Houston, TX
BReP-SNAP-T-18A Three-Dimensional Electronic Detector Array for Dose Verification in Radiotherapy: Proof of Product
D Roa1, R Challco2*, Z Arqque3, O Paucar4, C GUZMAN CALCINA5, A Gonzales6, A Gonzales Galvez7, M Montoya8, J Hernandez-Bello9, (1) University Of California, Irvine, Orange, CA, (2) Universidad Nacional de Ingenieria, Lima, ,PE, (3) Universidad San Antonio Abad, Cuzco, ,PE, (4) Universidad Nacional de Ingenieria, Lima, ,PE, (5) Universidad Nacional Federico Villarreal, Lima, ,PE, (6) Universidad Nacional de Ingenieria, Lima, ,PE, (7) Aliada Contra El Cancer, Lima, ,PE, (8) Universidad Nacional de Ingenieria, Lima, ,PE, (9) HRS Oncology International, Las Vegas, NV
BReP-SNAP-T-22Adaptive Stereotactic Abdominal Plan Quality and Fidelity Evaluation On Ethos
E Laugeman*, Y Hao, Z Jiang, G Hugo, S Mutic, H Kim, L Henke, B Cai, Washington University School of Medicine, St. Louis, MO
BReP-SNAP-T-24An Investigation of Using Logfile Analysis for Automated Patient Specific Quality Assurance in MRgRT
S Lim1*, P G Scripes1, M Napolitano2, E Subashi1, N Tyagi1, L Cervino 1, D Lovelock1, (1) Memorial Sloan-Kettering Cancer Center, New York, NY, (2) Standard Imaging, Middleton, WI
BReP-SNAP-T-25An Optimized Detector for Daily Quality Assurance Measurements of Magnetic Resonance Image Guided Radiation Therapy (MRgRT) Treatment Units
B Muir*, M McEwen, J Renaud, National Research Council, Ottawa, ON
BReP-SNAP-T-57Error Detection and Classification in Patient Specific IMRT QA with Dual Neural Networks
N Potter*, K Mund, J Andreozzi, J Li, C Liu, G Yan, University of Florida, Gainesville, FL
BReP-SNAP-T-71GEC-ESTRO Recommendations for Quality Assurance of Ultrasound in Brachytherapy
F-A Siebert1*, C Kirisits2, T Paulsen Hellebust3, D Baltas4, F Verhaegen5, S Camps6, B Pieters7, G Kovacs8, B Thomadsen9, (1) Clinic of Radiotherapy, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel,DE, (2) Department of Radiation Oncology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, AT, (3) Department of Medical Physics, Oslo University Hospital, Oslo,NO, (4) Division of Medical Physics, Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, DE, (5) Department of Radiation Oncology (MAASTRO), GROW, School for Oncology and Developmental Biology, Maastricht, NL, (6) Faculty of Electrical Engineering, University of Technology Eindhoven, Eindhoven, NL, (7) Academic Medical Center Amsterdam, Amsterdam, NL, (8) Interdisciplinary Brachytherapy Unit, University of Lubeck/University Hospital Schleswig-Holstein Campus Lubeck, Lubeck, DE, (9) University of Wisconsin, School of Medicine and Public Health, Department of Medical Physics, Madison, WI
BReP-SNAP-T-88In-House Automatic Radiation Oncology Physics Chart Check: Initial Experience
B Zhang1*, H Chen2, H Xu1, M Guerrero1, M Zakhary1, A Gopal1, S Chen1, B Yi1, (1) University of Maryland School of Medicine, Baltimore, MD (2) Emory Healthcare, Atlanta, GA
BReP-SNAP-T-90Institutional Performance On IROC Phantom as a Function of Phantom Type: A Multi-Variate Analysis
S Edward*, S Kry, D Followill, C Peterson, A Molineu, P Taylor, P Alvarez, The University of Texas MD Anderson Cancer Center, Houston, TX
BReP-SNAP-T-119Real Time Plan Verification of Radiotherapy Treatment Plans Using Couch and Gantry Mounted Cameras
M Ashraf1*, P Bruza1, B Pogue1, D Gladstone1,2, B Williams1,2, (1) Dartmouth College, Hanover, NH, (2) Dartmouth Hitchcock Medical Center, Lebanon, NH
BReP-SNAP-T-132Towards a Treatment Planning Optimization Framework Utilizing Predicted Quality Assurance Outcomes From a Machine Learning Model to Maximize Plan Quality and Deliverability
P Wall1*, J Fontenot1,2, (1) Louisiana State University, Baton Rouge, LA, (2) Mary Bird Perkins Cancer Center, Baton Rouge, LA
MO-EF-TRACK 3-15Deep DoseNet: A Deep Neural Network Based Dose Calculation Algorithm
P Dong1*, L Xing1, (1) Stanford Univ School of Medicine, Stanford, CA
MO-F-TRACK 1-2Improved Repeatabilityof Intra and Extra Myocellular Lipids Quantification Using Diffusion Tensor Imaging (DTI) and Dixon Imaging Guided Proton MR Spectroscopy in Skeletal Muscle
J Zhang1,2, C Arena2, A Ajala3, E Buko3, M Dotson2, R Muthupillai2,3*, (1) Department of Medical Physics and Radiation Oncology,University of Vermont Medical Center, Burlington, VT, (2)Department of Physics and Interventional Radiology,CHI St Luke's Health Baylor St Luke's Medical Center, Houston,TX(3) Department of Physics, University of Houston, Houston, TX,
PO-GeP-I-13D Dose Reconstruction Using An In-House Radioluminescence Imaging System
M jia*, L Wang, Y Yang, L Xing, X Li, Stanford University, Stanford, CA
PO-GeP-I-16A Preliminary Study of the Geometric Distortion in Diffusion-Weighted Imaging of Magnetic Resonance Imaging Simulation
x liu, J Qiu, Peking Union Medical College HospitalBeijingCN
PO-GeP-I-37Automated ACR Image Analysis for MR Imaging for All Seven Tests
C Burton*, Boston Children's Hospital, Boston, MA
PO-GeP-I-42Building a Comprehensive 4DCT QA Program
M Camborde*, T Karan, K Luchka, BC Cancer - Vancouver Centre, Vancouver, BCCA,
PO-GeP-I-91Does the Radiation Output From Mobile C-Arms of the Same Vendor Utilizing Different Image-Receptor Technology Differ?
J Dave1*, (1) Thomas Jefferson University, Philadelphia, PA
PO-GeP-I-121Feasibility of An Analytical Medical Image Quality Assessment That Requires No User Input
F Eashour*, S Pistorius, University of Manitoba, Winnipeg, MB, 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-204Technique Evaluation of Dose Area Product Measurements for Dual-Energy X-Ray Absorptiometer System
J Jimenez*, A Thomas, W Erwin, UT MD Anderson Cancer Center, Houston, TX
PO-GeP-I-216Toward Developing a Practical Approach for Evaluating CT Scanner Tube Current Modulation Performance
S Zhang*, J Provencher, R Subramaniam, Mount Sinai Medical Center, New York, NY
PO-GeP-I-227Utilizing a Radiology-Based Informatics System to Impact Clinical Practice: A Study to Improve and Track Patient Alignment in Computed Tomography
A Moody1*, L DeWeese2, T Griglock3, (1) UT Health San Antonio, San Antonio, TX, (2) Oregon Health & Science Univ, Portland, OR, (3) Oregon Health & Science Univ, Portland, OR
PO-GeP-I-235Weisskoff Analysis Can Infer False Correlations in Functional Connectivity Analysis with Resting-State FMRI
H Chen1*, M Yeh2, P Hou1, R Stafford1, H Liu1, (1) UT MD Anderson Cancer Center, Houston, TX, (2) National Tsing Hua University, Hsinchu, TW
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-38A Simple Statistical Method to Reduce the Number of Patient-Specific QA Measurements for MR-Linac Adaptive Fractions
A Kim1*, M Ruschin1, C Mccann1, P Au1, A Singh1, A Sahgal2, B Keller1, (1) Sunnybrook Odette Cancer Centre, Department of Medical Physics, Toronto, ON, CA, (2) Sunnybrook Health Sciences Centre, Odette Cancer Centre, Department of Radiation Oncology, CA
PO-GeP-M-65ArcCHECK for Machine Commissioning and Patient Specific QA: Which Phantom Should Be Used?
Y Tian*, K Zhang, K Men, J Dai, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, Beijing,CN,
PO-GeP-M-85Benchmarking the Plan Review Performance of a Commercial Automation Tool and a Dynamic Checklist Technology Using TG-275 High Risk Failure Modes
J Hoisak*, R Manger, G Kim, I Dragojevic, University of California, San Diego, La Jolla, CA
PO-GeP-M-149Development and Validation of a Machine Learning Predictive Model of IMRT Patient-Specific Quality Assurance Approval Using Gamma-Radiomics
C Yaly1, J Lizar2, P Santos3, A Colello Bruno1, G Viani1, J Pavoni1,2*, (1) Radiotherapy Department, Ribeirao Preto Medical School Hospital and Clinics, University of Sao Paulo, ,,BR, (2) Department of Physics, Faculty of Philosophy, Sciences and Letters at Ribeirao Preto - University of Sao Paulo, ,,BR, (3) Department of Psychology, Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, University of Sao Paulo, ,,BR,
PO-GeP-M-187Establishing a Routine Clinical Dose Verification Workflow Utilizing CBCT Imaging and Log Files
G Kuzmin*, P Xia, P Qi, The Cleveland Clinic Foundation, Cleveland, OH
PO-GeP-M-202Evaluation of Machine Learning Algorithms for Treatment Planning Parameter Calculation
J Chow1*, R Jiang2, F Ng3, (1) Princess Margaret Cancer Centre, Toronto, ON, CA, (2) Grand River Hospital, Kitchener, ON, CA, (3) Ryerson University, Toronto, ON, CA
PO-GeP-M-250Implementation of Intelligent Dynamic Checklists to Improve Treatment Planning and Physics Plan Review
J Hoisak*, R Manger, I Dragojevic, UC San Diego, La Jolla, CA
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-321Out of Sample Performance of a Deep Learning Based Registration Quality Assurance Method
X Zhou1*, S Galib2, H Lee2, G Hugo1, (1) Washington University in St. Louis, Saint Louis, MO, (2) Missouri University Of Science And Technology
PO-GeP-M-330Predicting Successful Voluntary Breath-Hold Candidates by Monitoring Breathing During Simulation
T Nano1, D Capaldi2, M Feng1, T Solberg1, A Witztum1*, (1) University of California, San Francisco, San Francisco, CA, (2) Stanford University, Stanford, CA
PO-GeP-M-366Reducing IMRT QA Workload by 95% and Keeping the Same Level of Quality Control
T Nano1*, M Descovich1, E Hirata1, Y Interian2, G Valdes1, (1) University of California, San Franisco, San Francisco, CA, (2) USF, San Francisco, CA
PO-GeP-M-384Statistical Process Control Analysis of Adaptive Patient Specific QA On the Elekta Unity MRI-Linac
S Strand*, A Boczkowski, J Snyder, D Hyer, S Yaddanapudi, D Dunkerley, J St-Aubin, University of Iowa, Iowa City, IA
PO-GeP-M-423Validation of An Automatic ACR Phantom Quality Assurance Tool for the Low-Field MR Guided Radiotherapy System
Y Gao1*, R Lotey2, P Hu1, Y Yang1, (1) University of California, Los Angeles, Los Angeles, CA, (2)Viewray Inc, Mountain View, CA
PO-GeP-P-11Luminance and Non-Uniformity Changes in Primary Monitors Over the 4-Year Period of QA Measurements
A Ruuge*, Y Erdi, Memorial Sloan Kettering Cancer Center, New York, NY
PO-GeP-P-12Clinical Review of Radiography Reject and Repeat Rate Changes After Upgrading From CR to DR
R Fisher1*, (1) MetroHealth, Cleveland, OH
PO-GeP-P-19Validation of Dosimetric Commissioning Accuracy OfIMRT and RapidArc for Halcyon Linear Accelerator Using AAPM TG-119 Protocol
B Yang*, L Yu, Z Wang, W Li, J Zhang, T Pang, K Hu, F Zhang, J Qiu, Peking Union Medical College Hospital, Beijing, 11CN,
PO-GeP-P-20An Algorithm to Automatically Categorize Incident Learning Safety Reports Using Text Token Clustering
M Havard*, Q Zhang, E Ford, University of Washington, Seattle, WA
PO-GeP-P-41Evaluation of Patient Specific Quality Assurance Using Receiver Operator Characteristic Analysis
M Adili*, A Alrushoud, Prince Sultan Medical Military City
PO-GeP-P-68Reproducibility of Lung SBRT Delivery On Beam-Matched Truebeam Linear Accelerator: A Multi-Linac Study
K Melville1*, K Yang1, R Patel2,1, S Sharma1, W Jiang2,1, (1) East Carolina University, Greenville, NC,(2) 21st Century Oncology, Greenville, NC
PO-GeP-P-85Analysis of Portal Dosimetry Patient-Specific Quality Assurance Results of 1203 Patients Treated with Varian Halcyon 1.0 Accelerator
Z Wang*, B Yang, L Yu, T Pang,B Wang, F Zhang, J Qiu, Peking Union Medical College Hospital, Beijing, CN
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-97Best Practice Guidance for Patient-Specific Quality Assurance for IMRT and VMAT Plan Delivery Verification
G Chan1*, A Abdellatif2, J Bissonnette3, L Chin4, D Comsa5, D Granville6, J Kraus Himmelman7, J King8, P Rapley9, A Vandermeer10, (1) Juravinski Cancer Center, Hamilton, ON, CA, (2) R.S. McLaughlin Durham Regional Cancer Centre, Oshawa, ON, CA, (3) Princess Margaret Cancer Centre, Toronto, ON, CA, (4) Odette Cancer Centre, Toronto, ON, CA, (5) Stronach Regional Cancer Centre, Newmarket, ON, CA, (6) The Ottawa Hospital, Ottawa, ON, CA, (7) Ontario Health (Cancer Care Ontario), Toronto, ON, CA, (8) Simcoe Muskoka Regional Cancer Centre, Barrie, ON, CA, (9) Thunder Bay Regional Health Sciences Center, Thunder Bay, ON, CA, (10) R.S. McLaughlin Durham Regional Cancer Centre, Oshawa, ON, CA
PO-GeP-P-98Best-Practice Guidelines for Radiation Treatment Plan Physics Review: Report of a Provincial Working Group
A Rink1*, G Salomons2, A Vandermeer3, L Conroy1, D Granville4, J Gaul5, T Mutanga6, M Paudel7, R Jiang8, J Bissonnette1, J Kraus Himmelmann9, H Keller1, (1) The Princess Margaret Cancer Centre, University Health Network, Toronto, ON, CA, (2) Cancer Center of Southeastern Ontario, Kingston, ON, CA, (3) R.S. McLaughlin Durham Regional Cancer Centre, Oshawa, ON, CA, (4) The Ottawa Hospital, Ottawa, ON, CA, (5) Windsor Regional Hospital, Windsor, ON, CA, (6) Credit Valley Hospital and Trillium Health Centre, Mississauga, ON, CA, (7) Sunnybrook Odette Cancer Center, University of Toronto, Toronto, ON, CA, (8) Grand River Hospital, Kitchener, ON, CA, (9) Cancer Care Ontario
PO-GeP-T-6A Clinical Validation of the MR-Compatible Delta4 QA System in a 0.35 Tesla MR-Linac
V Desai*, J Bayouth, J Smilowitz, P Yadav, University of Wisconsin, Madison, WI
PO-GeP-T-12A Comprehensive Evaluation of the IQM System Accuracy for Standard Fields and Error Detection Sensitivity for Lung SBRT and Nasopharynx VMAT Plans
T Alharthi1*, A George2, S Arumugam3, L Holloway 4, D Thwaites 5, P Vial6, (1) The University of Sydney, Liverpool and Macarthur Cancer Therapy Centers, Ingham Institute for Applied Medical Research, Sydney, NSW, AU. School of Medicine, Taif University, Taif, SA. (2) Liverpool and Macarthur Cancer Therapy Centers, Sydney, NSW, AU. (3) Liverpool and Macarthur Cancer Therapy Centers, Sydney, NSW , AU. (4) Ingham Institute for Applied Medical Research, Sydney, NSW, AU. Liverpool and Macarthur Cancer Therapy Centers, Sydney, NSW, AU. South Western Sydney Clinical School, University of New South Wales, Sydney, NSW, AU. (5)The University of Sydney,Sydney, NSW , AU. (6) Ingham Institute for Applied Medical Research, Sydney, NSW, AU. Liverpool and Macarthur Cancer Therapy Centers, Sydney, NSW, AU.
PO-GeP-T-18A Database-Driven Verification System for CT Simulation, Contouring and Plan Optimization
M Ayles*, P Munger, D Martin, M Brunet-Benkhoucha, G Jarry, L Archambault, Hopital Maisonneuve-Rosemont, Montreal, QCCA,
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-36A New Approach to AlignRT Data Preparing, Checking and Dispatching Using Offline Workstations for Surface-Guided Radiotherapy
K O'Grady*, G Li, Memorial Sloan Kettering Cancer Center, New York, NY
PO-GeP-T-48A Novel Method for Beam Data and Model Analytics in the Eclipse Treatment Planning System
J Rogers*, Atrium Health - Rock Hill and Lancaster Radiation Therapy, Indian Land, SC
PO-GeP-T-56A Patient Plan Verification Confidence Limits Been Founded for TOMOTHERAPY HDA Type Machine
T Pang*, L Yu, B Yang, J Qiu, Peking Union Medical College Hospital, Beijing, 11CN,
PO-GeP-T-57A Patient Timeout System (PTS) Utilizing Delivery System Relay Interlocks for Pre-Treatment Patient Verification
D Barbee*, NYU Langone Health, New York, NY
PO-GeP-T-68A Simple Technique for Measuring the Latency of Non-Radiographic Localization Systems
R Popple*, E Covington, University of Alabama at Birmingham, Birmingham, AL
PO-GeP-T-73A Systematic Log File Analysis Tool for the Mevion S250i Hyperscan System: First Year Experience
M Newpower1*, H Jin2, A Bunker3, S Ahmad4, Y Chen5, (1) University of Oklahoma Health Sciences Center, Shawnee, OK, (2) University of Oklahoma Health Science Center, Oklahoma City, OK, (3) Oregon Health and Science University School of Medicine, Portland, OR, (4) Oklahoma Univ. Health Science Ctr., Oklahoma City, OK, (5) University of Oklahoma Health Science Center, Oklahoma City, OK
PO-GeP-T-74A Systematic Study On the Angular Dependence of 2D Ion Chamber Array for Accurate IMRT Plan Quality Assurance
J Xu*, J Liu, I Veltchev, C Ma, Fox Chase Cancer Center, Philadelphia, PA
PO-GeP-T-93An Alternative Approach to Verify 6FFF Beam Dosimetry for Ethos and MR Linac Without Using a 3D Water Tank
Y Hao1*, B Cai1, O Green1, N Knutson1, S Yaddanapudi2, T Zhao1, V Rodriguez1, M Schmidt1, S Mutic1, B Sun1, (1) Washington University School of Medicine, St. Louis, MO, (2) University of Iowa, Iowa City, IA
PO-GeP-T-101An Investigation Into VMATPatient-Specific QA Pass Rates Influenced by Linac Performance
S Kucuker Dogan1*, D Schulze1, M Gopalakrishnan1, D Cutright2, (1) Northwestern Memorial Hospital, Chicago, IL, (2) University of Chicago Medicine, Chicago, IL
PO-GeP-T-106Analysis of a Machine Learning Based Planning Tool for Parotid Dose Prediction and Sparing
N Shaheen*, R Bayliss, P Hill, University of Wisconsin, Madison, WI
PO-GeP-T-109Angular Dependency of the Measurements of the Novel SRS MapCheck Device in the Magnetic Field
O Pen*, A Price, Washington University in St. Louis, St. Louis, MO
PO-GeP-T-111Aperture Area in IMRT Studied Via Accumulated Dose Uncertainty Potential
E Shiba1,2*, A Saito2, M Furumi1, D Kawahara2, K Miki2, Y Murakami2, T Ohguri1, S Ozawa3, M Tsuneda4, K Yahara1, T Nishio4, Y Korogi1, Y Nagata2, (1) University of Occupational and Environmental Health, Fukuoka, JP, (2) Hiroshima University, Hiroshima, JP, (3) Hiroshima High-precision Radiotherapy Cancer Center, Hiroshima, JP, (4) Tokyo Women's Medical University, Tokyo, JP
PO-GeP-T-114Application of the Integral Quality Monitor (IQM) Transmission Detector for Optimization of Dosimetric Leaf Gap and Multi-Leaf Collimator Transmission Factor
S Martinez1*, D Dean2, M Ghafarian1, M Price1, K Homann1, (1) Vanderbilt University School of Medicine, Nashville, TN, (2) Clovis Community Medical Center,Clovis, CA
PO-GeP-T-121Assessing the Effect of Multiple Delivery Parameters in Patient-Specific QA for Poor Pass-Rates Using A Diode Array and Treatment Plans From Two Different Planning Systems
J Bogue*, E Parsai, University of Toledo Medical Center, Toledo, OH
PO-GeP-T-136Automated Proton Beam Model Validation
A Egan1*, D Maes1, R Regmi1, C Bloch1,2, J Saini1, P Taddei1,2, S Bowen1,2, T Wong1, (1) Seattle Proton Therapy Center, Seattle, WA, (2) University of Washington School of Medicine, Seattle, WA
PO-GeP-T-143Automatic Selection of An Absolute-Dose Verification Point for Volumetric-Modulated Arc Therapy Via Dose Uncertainty Potential Accumulation Model
A Saito1*, T Nakashima1, D Kawahara1, E Shiba2,1, T Matsuura3,1, K Fukata4, K Miki1, M Tsuneda5, T Nishio5, Y Nagata1, (1) Hiroshima University, Hiroshima, JP, (2) University of Occupational and Environmental Health, Fukuoka, JP, (3) Hiroshima High-precision Radiotherapy Cancer Center, Hiroshima, JP, (4) Keio University, Tokyo, JP, (5) Tokyo Women's Medical University, Tokyo, JP
PO-GeP-T-151Beam Parameters of Pediatric Plans with a Pencil Beam Scanning Proton System and Their Effects On Patient-Specific Quality Assurance
S Al-ward*, L Zhao, St. Jude Children's Research Hospital, Memphis, TN
PO-GeP-T-152Benchmark Performance Measurements of a Novel Biology-Guided Radiotherapy (BgRT) Machine Using TG-148 and TG-142
D Zaks1*, R Bassalow2, O Volotskova3, M Narayanan4, C Huntzinger5, S Shirvani6, S Mazin7, G Kuduvalli8, (1) RefleXion Medical, Hayward, CA, (2) Northwest Medical Physics, Silverdale, WA, (3) Sutter Health, Berkeley, 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-T-171Characterization of IMRT, SBRT and SRS Patient Plan Quality Assurance of a Novel Biology-Guided Radiotherapy (BgRT) Machine
D Zaks1*, A Purwar2, M Narayanan3, S Khan4, J White5, A Da Silva6, C Han7, J Liang8, D Du9, A Liu10, Y Voronenko11, D Pal12, D Rigie13, J Burns14, G Kuduvalli15, (1) RefleXion Medical, Hayward, CA, (2) RefleXion Medical, Hayward, CA, (3) Reflexion Medical, Hayward, CA, (4) Reflexion Medical, Hayward, CA, (5) Reflexion Medical, Hayward, CA, (6) RefleXion Medical,Hayward, CA, (7) City of Hope Medical Center, Duarte, CA, (8) City of Hope Medical Center, Duarte, CA, (9) City of Hope Medical Center, Duarte, CA, (10) City of Hope Medical Center, Duarte, CA, (11) RefleXion Medical, Hayward, CA, (12) RefleXion Medical ,Hayward, CA, (13) Reflexion Medical, Hayward, CA, (14) Reflexion Medical, Hayward, CA,(15) Reflexion Medical, Hayward, CA
PO-GeP-T-172Characterization of Linac Mechanical Performance for Multi-Target Single-Isocenter Frameless SRS Using a Custom Phantom
I Rusu*, H Kang, S Gros, M Mysz, A Sethi, J Roeske, Loyola Univ Medical Center, Maywood, IL
PO-GeP-T-175Characterization of the IMRT and SBRT Performance of a Novel Biology-Guided Radiotherapy (BgRT) Machine Using ArcCHECK
D Zaks1, M Narayanan2*, R Bassalow3, O Volotskova4, Y Voronenko5, D Pal6, D Rigie7, J Burns8, A Purwar9, P Olcott10, G Kuduvalli11, (1) RefleXion Medical, Hayward, CA, (2) Reflexion Medical, Hayward, CA, (3) Northwest Medical Physics , Silverdale, WA, (4) Sutter Health Berkeley, CA, (5) RefleXion Medical, Hayward, CA, (6) GE Healthcare, Menlo Park, CA, (7) Reflexion Medical, Hayward, CA, (8) Reflexion Medical, Hayward, CA, (9) RefleXion Medical, Hayward, CA, (10) Reflexion Medical, Hayward, CA, (11) Reflexion Medical, Hayward, CA
PO-GeP-T-181Checking Sanity and Integrity of Treatment Plans in MR-Linac Based Adaptive Radiotherapy
P Zhang*, J Xiong, S Burleson, A Li, J Mechalakos, N Tyagi, Memorial Sloan-Kettering Cancer Center, New York, NY
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-189Clinical Implementation of Monte Carlo Modeling of the Elekta VersaHD with Agility Collimator
H Parenica1*, C Kabat1, P Papaconstadopoulos2, N Kirby1, P Myers1, T Wagner1, N Papanikolaou1, S Stathakis1, (1) UT Health San Antonio, San Antonio, TX, (2) Netherlands Cancer Institute, Amsterdam, Netherlands
PO-GeP-T-190Clinical Implementation of TG-218: Process-Based IMRT Analytics
B Granger1*, J McGlade1, F Mourtada1, (1) Christiana Care Hospital, Newark, DE
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-204Commissioning Report of a High Field MR-Linac System
N Tyagi1*, E Subashi2, P Godoy Scripes3, J Mechalakos4, X Gonzalez Souto5, S Lim6, (1) Memorial Sloan-Kettering Cancer Center, New York, NY, (2) Memorial Sloan Kettering Cancer Center, New York, NY, (3) Memorial Sloan-Kettering Cancer Center, New York, NY, (4) Memorial Sloan-Kettering Cancer Center, New York, NY, (5) Elekta, Atlanta, GA, AF, (6) Memorial Sloan-Kettering Cancer Center, New York, NY
PO-GeP-T-217Comparison of Clinical Trial and Non-Trial Pass Rates for IROC Houston's HN and Lung Phantoms
H Mehrens*, T Nguyen, N Hernandez, B Lewis, N Pajot, A Molineu, D Followill, The University of Texas MD Anderson Cancer Center, Houston, TX
PO-GeP-T-223Comparison of Location Accuracy Between the Jaw and MLC Using a High Sampling Rate Log File
M Seo*, S Nishiyama, K Makabe, M Kuramochi, T Suzuki, H Tomita, Saiseikai Kawaguchi General Hospital, Kawaguchi, SaitamaJP,
PO-GeP-T-234Comparison of Vendor-Dependent Versus Commercially-Available, Independent LINAC Quality Assurance (QA) for Daily QA
C Stambaugh*, C Melhus, Tufts Medical Center, Boston, MA
PO-GeP-T-236Compounding Automation Features From Multiple APIs for Automated Linear Accelerator Quality Assurance
M Schmidt1,2*, C Raman1, Y Wu1, N Knutson1, F Reynoso1, Y Hao1, M Yaqoub1, G Hugo1, E Sajo2, B Sun1, (1) Washington University School of Medicine in St. Louis, Saint Louis, MO, AF,(2) Univ Massachusetts Lowell, Lowell, MA
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-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-259Delivery Quality Assurance System Based On Simultaneous Verification of Three-Dimensional Dose Distribution and Mechanical Motion
Y Tanaka1*, M Ishigami2, H Miyauchi1,3, K Takahashi1, M Nakano3, T Hasegawa4, M Hashimoto4,(1) Kitasato University Graduate School of Medical Sciences, Sagamihara, Kanagawa, JP, (2) Department of Radiology, Kitasato University Hospital, Sagamihara, Kanagawa, JP, (3) Cancer Institute Hospital of JFCR, Koto-ku, Tokyo, JP, (4) Faculty of Allied Health Sciences, Kitasato University, Sagamihara, Kanagawa, JP
PO-GeP-T-261Design and Testing of An Active Matrix Pixel, Data Acquisition and Microcontroller System for Dosimetric Measurements
D Roa1*, R Challco2, Z Arqque3, O Paucar4, C GUZMAN CALCINA5, A Gonzales Galvez6, A Gonzales7, M Montoya8, J Hernandez-Bello9, (1) University Of California, Irvine, Orange, CA, (2) Universidad Nacional de Ingenieria, Lima, Peru, (3) Universidad San Antonio Abad, Cuzco, Peru (4) Universidad Nacional de Ingenieria, Lima, Peru, (5) Universidad Nacional Federico Villarreal, Lima, Peru, (6) Clinica Aliada Contra El Cancer, Lima, Peru (7) Universidad Nacional de Ingenieria, Lima, Peru, (8) Universidad Nacional de Ingenieria, Lima, Peru, (9) HRS Oncology International, Las Vegas, NV
PO-GeP-T-268Determination of a Quality Index for Stereotactic Radiosurgery Based On FMEA Risk Analysis
F Teixeira1,2*, C de Almeida2, M Huq3, (1) Brazilian National Nuclear Energy Commission, Rio De Janeiro, RJ, BR, (2) Universidade do Estado do Rio de Janei, Maracana V Isabel, RJ,BR, (3) UPMC Hillman Cancer Center and University of Pittsburgh School of Medicine, Pittsburgh, PA
PO-GeP-T-274Determination of Machine-Specific Tolerances Based On Long-Term Monthly QA Dosimetry Results in Proton Therapy
S Rana1*, H Grewal1, M Chacko1, C Eckert1, M Storey1, J Chang1, A Rosenfeld2, (1) The Oklahoma Proton Center, Oklahoma City, OK, (2) University of Wollongong, Wollongong, Australia
PO-GeP-T-282Development and Verification of Mailed Audit Alanine Dosimeters for Radiotherapy in China
K Wang, S Jin*, J Zhang,
PO-GeP-T-283Development of a 3D Printed Geiger Mueller Calibration Geometry to Verify the Activity of a Novel Endoscopic Alpha Emitters Brachytherapy Loading Device for Pancreatic Cancer
Y Kamio1, 2*, J Carrier2, S Bedwani2, (1) McGill University, Montreal, QC, CA, (2) CHUM hospital, Montreal, QC, CA
PO-GeP-T-292Development of An Automated Pre-Treatment Data-Transfer Evaluation
J Rembish*, N Bice, C Kabat, S Stathakis, N Papanikolaou, P Myers, UT Health San Antonio, San Antonio, TX
PO-GeP-T-293Development of An Automated Quality Control Test of the Asymmetric Jaws Position
Pedro Martinez1,2*, Malgorzata D'Souza2, Jacob Groeneveld3, Charles Kirkby3, David Sinn4, Wendy 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, (4) Cross Cancer Institute, Edmonton, AB, CA
PO-GeP-T-294Development of An Automated Routine for Finding the Precise Location of Scintillators Elements and Their Emission Spectrum in a Multi-Point Scintillation Detector
B Lessard1,2*, F Larose1,2, F Berthiaume1,2,3, S Lambert-girard1,2,3, F Therriault-Proulx3, L Archambault1,2, (1) Departement de physique, genie physique et optique, et Centre de recherche sur le cancer, Universite Laval, Quebec, CA, (2) CHU de Quebec - Universite Laval et CRCHU de Quebec, Quebec, CA, (3) Medscint inc., Quebec, CA
PO-GeP-T-295Development of Dosimetric Verification System for HDR Brachytherapy: A Feasibility Study
S Kang1*, J Chung2, W Cho3, S Kang2, K Kim1, D Shin1, T Suh1, (1) The Catholic University, College of Medicine, Seoul, 41, KR, (2) Seoul National University Bundang Hospital, Seongnam, 41, KR, (3) Boramae Medical Center, Seoul, ,KR
PO-GeP-T-300Development of QA Programs for the Halcyon Linac
K Motegi*, H Tachibana, K Hotta, H Baba, R Takahashi, T Akimoto, National Cancer Center Hospital East
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-310Dose Prediction for Patient-Specific QA Using a Convolutional Neural Network
K Mund*, G Yan, University of Florida, Gainesville, FL
PO-GeP-T-346Dosimetric Impact of Intra-Fraction Lung Tumor Rotation in Real-Time Tumor-Tracking Radiotherapy Using a Developed 6DoF Robotic Phantom System
T Shiinoki*, F Fujii, Y Yuasa, T Nonomura, K Fujimoto, T Sera, H Tanaka, Yamaguchi University
PO-GeP-T-357Dosimetry of Synchrotron-Based FLASH Irradiation Using Low-Sensitivity Radiochromic Film
K Yasui1*, T Toshito2, C Omachi2, Y Shinozawa3, M Umezawa3, H Ogino2, (1)Fujita Medical University, Toyoake, Japan, (2)Nagoya Proton Therapy Center, Nagoya, Japan,(3) Hitachi Ltd., Smart Therapy Division, Kashiwa, Japan
PO-GeP-T-360Dynamic Dose Measurements of Gamma Knife ICON Using a New Scintillation Detector System
Y Watanabe*, M Feijoo, S Beron, G Perera, University of Minnesota, Minneapolis, MN
PO-GeP-T-361Early Detection of LINAC Failure with Automated Machine Performance Check (MPC)
C Teng*, A Amoush, T Wolken, T Tseng, R Sheu, Y Lo, Mount Sinai Medical Center, New York, NY
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-385Error Detection Sensitivity of the SNC and PTW Patient-Specific Qualityassurance Devices
B Rudek1*, M Manavalan2, J Xue1, (1) NYU Langone Health, New York, NY, (2) PTW North America Corporation, New York, NY
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-401Evaluation of a Transmission Quality Assurance Device Mounted On a Gantry of LINAC for 4 MV X-Ray Beam
H Yokoyama1,3,*, H Kojima1,3, A Takemura2, T Nguyen3, S Ueda1, K Noto1, H Adachi1, (1) Department of Radiology, Kanazawa University Hospital, Kanazawa, JP, (2) Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, JP, (3) Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, JP
PO-GeP-T-403Evaluation of Automated Machine Performance Check in Periodic Quality Assurance of the Halcyon
D Mynampati1*, S Hsu1,2, P Brodin1,2, A Basavatia1, W Tome1,2, (1) Montefiore Medical Center, Bronx, NY, (2) Albert Einstein College of Medicine, Bronx, NY
PO-GeP-T-409Evaluation of PET/clinical Parameters to Predict Toxicity in Chimeric Antigen Receptor T-Cell Therapy Patients with Relapsed/refractory Non-Hodgkin Lymphoma
C Uche*, C Wright, J Baron, M Lariviere, A Barsky, D Miller, A Maity, J Plastaras, Y Xiao, University of Pennsylvania, Philadelphia, PA
PO-GeP-T-418Evaluation of the Cumulative Signal Response with the Electronic Portal Imaging Device (EPID) and the Integral Quality Monitor (IQM) for Patient-Specific SBRT QA
A Harpley*, M Morales-Paliza, M Price, Vanderbilt University Medical Center, Nashville, TN
PO-GeP-T-419Evaluation of the Optimal Collimator Angle in a Prostate VMAT Plan Using a Novel MLC QA with a High Sampling Rate Log File
S Nishiyama*, M Seo, K Makabe, M Kuramochi, T Suzuki, H Tomita,
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-427Evaluation of Various Modulation Indices for Predicting VMAT Delivery Accuracy
T Kusunoki1,2*, S Hatanaka2, M Hariu2, M Shimbo2, T Ezura1, D Yoshida1, T Takahashi2, (1) Kanagawa Cancer Center, Yokohama, Kanagawa, JP, (2) Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, JP,
PO-GeP-T-431Examining ArcCHECK Array Calibration Validity and Its Impact On Patient Specific QA Results
H Nusrat1,2*, L Lukhumaidze1, A Singh1, P Au1, Y Lee1,2, M Davidson1,2, (1) Department of Medical Physics, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON, CA, (2) Department of Radiation Oncology, University of Toronto, Toronto, ON, CA
PO-GeP-T-436Experimental Results of Protoacoustics Capability to Verify Proton Range for CNS Cases
S Avery1*, W Nie3, J Sohn4, K Jones5,J Eichenberger6, J Dorsey1, A Kassaee1, C Sehgal2, (1) Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA (2) Department of Radiology, University of Pennsylvania, Philadelphia, PA (3) Department of Radiation Oncology, University of Nebraska, Omaha, NE (4) Department of Radiation Oncology, Emory University, Atlanta, GA, (5) Department of Radiation Oncology, Rush University Medical Center, Chicago, IL, (6) Polytec Inc., Irvine, CA
PO-GeP-T-442Failure Mode and Effects Analysis for PET Applications in Radiation Therapy Quality Management
A Rodrigues*, J O'Daniel, Y Mowery, F Yin, Y Cui, Duke University Medical Center, Durham, NC
PO-GeP-T-447Feasibility of End-To-End Quality Assurance of FSRT Brain Treatments Using An In-House Developed Anthropomorphic Head Phantom
KM Alexander1, K Dekker1, T Olding1,2, LJ Schreiner2*, (1) Cancer Centre Of Southeastern Ontario At Kingston Health Sciences Centre, Kingston, ON, CA, (2) Queen's University, Kingston, ON, CA
PO-GeP-T-455Feasibility Study of 3D-Printed Scintillation Detector for Quality Assurance
K Yasui1*, Y Saito2, M Terakura3, S Ogawa3, M Ichihara3, N Hayashi1, (1) Fujita Health University, Toyoake, Japan, (2) Fujita Health University Hospital, Toyoake, Japan, (3) Graduate school of Health Sciences, Fujita Health University, Toyoake, Japan
PO-GeP-T-460Filmless Quality Assurance Tests for the Leksell Gamma Knife Icon™
B Maraghechi*, T Kim, J Dise, S Goddu, T Mitchell, J Kavanaugh, J Zoberi, S Mutic, N Knutson, Washington University, St. Louis, MO
PO-GeP-T-472Gamma Testing Results On MC Vs PB Algorithms On Intensity-Modulated Proton Therapy for Breast Cancer Treatment
C Liu1,3*, D Zheng2, J Bradley1, R Mailhot Vega1, Z Li1, N Mendenhall1, X Liang1, (1) Department of Radiation Oncology, University of Florida College of Medicine, Jacksonville, FL, (2) University of Nebraska Medical Center, Omaha, NE, (3)School of Physical Sciences, University of Science and Technology of China, Hefei, China
PO-GeP-T-477High Accuracy Measurement of Absorbed Dose to Water Using Optically Stimulated Luminescence Dosimeter in High-Energy Photon Beam Field
S Goto1,2*, H Hayashi1, H Yamaguchi2, M Shimizu2, R Akino3, H Sekiguchi3, (1) College Of Medical, Pharmaceutical And Health Sciences, Kanazawa University, Kanazawa, Japan, (2) National Institute Of Advanced Industrial Science And Technology, Japan, (3) Nagase-Landauer, Ltd.
PO-GeP-T-493Impact of Sampling Time On the Performance of the Exradin W2 Scintillation Detector in Beam Profile Scans
R Kolany*, W Culberson, University of Wisconsin - Madison, Madison, WI
PO-GeP-T-508Improved Prediction of MLC and Gantry Errors During VMAT Delivery Utilizing An Artificial Neural Network
I Hajizadeh*, M Price, A Yock, Vanderbilt Univ. Medical Ctr., Nashville, TN
PO-GeP-T-548Investigation On the Portability of Patient-Specific Quality Assurance Between Matched Linear Accelerators
B Barraclough*, S Frigo, Z Labby, University of Wisconsin, Madison, WI
PO-GeP-T-564Linac-Based SBRT Delivery QA and Decreased Gamma Criteria
R Price*, I Veltchev, T Lin, A Eldib, L Chen, X Chen, L Jin, L Wang, J Liu, C Ma, Fox Chase Cancer Center, Philadelphia, PA
PO-GeP-T-568Long-Term Monitoring of Patient Delivery Parameters Using Trajectory Logs
J DeMarco*, J Lewis, B Fraass, Cedars-Sinai Medical Center, Los Angeles, CA
PO-GeP-T-569Low Cost Radiochromic Film Based QA Device for Brachytherapy Afterloader
D Johnson1*, Z Richards2, L Muller3, Y Chen4, (1) The University of Kansas Medical Center, Kansas City, KS, (2) University of Oklahoma Health Sciences Center, Edmond, OK, (3) St Peters, Albany, NY, (4) University of Oklahoma Health Sciences Center, Oklahoma City, OK
PO-GeP-T-573Maximizing the Value of Incident Reporting: A Medical Physics Perspective
T Ritter, R Kapoor*, S Kim, E Bump, J Madridejos, T Adams, K Willis, L Padilla, D Arthur, J Palta, VCU Health System, Richmond, VA
PO-GeP-T-577Measurement of Radiation-Induced Air Scintillation with An On-Board EMCCD Camera for Quality Assurance in Small-Animal Cabinet Irradiators
D Breitkreutz*, E Simiele, G Pratx, E Graves, Department of Radiation Oncology, Stanford University, California, USA
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-582Modeling and Testing of a Virtual Source Model for An Independent Monte Carlo Radiation Dose QA Software with the Magnetic Field Option
Q Cheng1*, H Yang1, Y Xu2, X Pei2,3, L Mao2, Q Ren3, A Wu5, D Adam4, B Bednarz4, P Caracappa6, X Xu1,2, (1) Rensselaer Polytechnic Institute, Troy, NY, (2) University of Science and Technology of China, Hefei, ,CN, (3) Anhui Wisdom Technology Company Limited, Hefei, ,CN, (4) University of Wisconsin- Madison, Madison, WI, (5) The First Affiliated Hospital of University of Science and Technology of China, Hefei, ,CN, (6) Virtual Phantoms, Inc., Albany, NY
PO-GeP-T-596Mosaiq Integrated Digital Whiteboard
A Kalet1, J Meyer1, N Cao1*, L Young1, M Lavilla2, (1) University of Washington Medical Center, Seattle, WA, (2) Seattle Cancer Care Alliance, Seattle, WA
PO-GeP-T-599Multi-Leaf Collimator Leaf Open Time Sinogram (LOTS) Based Patient Specific Quality Assurance: A Novel Approach for Total Marrow Irradiation
Rajesh T1*, Dayananda S1, G Krishnan1, A Manikandan1, M Noufal1, K Patro1, A Nambiraj N2, S Kaushik1, R Jalali1, (1) Apollo Proton Cancer Centre, Chennai, Tamil Nadu, India, (2) Vit University, Vellore India
PO-GeP-T-616Optimization of Electronic Portal Imaging Devices (EPIDs) for Small VMAT Fields
M Koo1*, J Darko2, E Osei3, (1) Ryerson University, Toronto, ON, CA, (2) Grand River Hospital, Kitchener, ON, CA, (3) Grand River Regional Cancer Centre,
PO-GeP-T-623Overview of IROC Houston's Process for Credentialing and Phantom Irradiation
H Mehrens, N Hernandez, T Nguyen*, B Lewis, N Hernandez, N Pajot, S Cheng, A Molineu, D Followill, MD Anderson Cancer Center, Houston, TX
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-632Patient-Specific Quality Assurance Using Trajectory Log File-Based Dose Reconstruction for SRS VMAT
H Park1*, J Park2, M Artz2, S Huh2, (1) Ajou University School of Medicine, Suwon, KR (2) University of Florida Health Proton Therapy Institute, Jacksonville, FL, USA
PO-GeP-T-641Plan Quality Assessment for Rectal Cancer Patients Using Prediction of Organ-At-Risk Dose Metrics
A Vaniqui*, R Canters, F Vaassen, C Hazelaar, I Lubken, K Kremer, C Wolfs, W Van Elmpt, Maastro, Maastricht, NL,
PO-GeP-T-646Pre-Clinical and Clinical Evaluation of the HYPERSCINT Scintillation Dosimetry Research Platform
I Schoepper1, E Trestrail2*, S Dieterich3, M Kent4, (1) WR Pritchard Veterinary Medical Teaching Hospital, UC Davis School of Veterinary Medicine, UC Davis School Of Veterinary Medicine, (2) Pacific Crest Medical Physics ,Chico, CA, (3) UC Davis Medical Center, Sacramento, CA, (4) Surgical and Radiological Sciences, UC Davis School of Veterinary Medicine, Davis, CA,
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-652Predicting Linac Failure Risks From Machine Performance Check Application Using An Integration of Statistical Process Control and Machine Learning
T Fuangrod1*, W Puyati2, A Khawne2, M Barnes3, P Greer3, (1) Faculty of Medicine and Public Health, HRH Princess Chulabhorn College of Medical Science, Chulabhron Royal Academy, Bangkok,TH (2) Department of Computer Engineering, Faculty of Engineering, King Mongkuts Institute of Technology Ladkrabang, Bangkok, TH (3) Department of Radiation Oncology, Calvary Mater Hospital Newcastle, Newcastle, NSW, AUS
PO-GeP-T-655Predictive Gamma Passing Rate of 3D Array Detector-Based VMAT QA Via Deep Learning Combining Dose Distribution and Accumulated Dose Uncertainty Potential Distribution
T Matsuura1,2*, D Kawahara2, A Saito3, E Shiba4, K Yamada1, S Ozawa1,2, Y Nagata1,2, (1) Hiroshima High-precision Radiotherapy Cancer Center, JP, (2) Hiroshima University, JP, (3) Hiroshima University Hospital, JP, (4) University of Occupational and Environmental Health, JP
PO-GeP-T-669Qualification and Reproducibility of Proton FLASH Fields Delivered with Prototype Ultra-High Dose Rate Hardware
M Folkerts1*, T Pfeiler2, I Huth3, I Kalichava4, A Douiri5, J Heese6, (1) Varian Medical Systems, Inc., Palo Alto, California, (2) Varian Medical Systems, Inc., ,,DE, (3) Varian Medical Systems, Inc., ,,DE, (4) Varian Medical Systems, Inc., ,,DE, (5) Varian Medical Systems, Inc., ,,DE, (6) Varian Medical Systems, Inc., ,,DE
PO-GeP-T-672Quality Assurance Tool for Determination of Position and Transit Time of a Co-60 Source in High Dose Rate Brachytherapy
G Piriz1, H Ortega2, G Gonzalez-Sprinberg2*, (1) Faculty of Medicine, Universidad de la Republica, Montevideo, UY, (2) Faculty of Sciences, Universidad de la Republica, Montevideo, UY
PO-GeP-T-676Quantified VMAT Plan Complexity in Relation to Measurement-Based Quality Assurance Results
M Nguyen*, G Chan, Juravinski Cancer Center, Hamilton, ON, CA
PO-GeP-T-679Quantitative Analysis and Quality Assurance (QA) of Gynecological Brachytherapy Applicators Using Radiochromic Film Dosimetry
S Aldelaijan1,2,3*, Y Khouj1, M Khosravi1, T Harris1, D O'Farrell1, M Jacobson1, J Seuntjens2, S Devic2,4, I Buzurovic1, (1) Brigham and Women's Hospital, Dana Farber Cancer Institute, Harvard Medial School, Boston, MA, (2) McGill University, Montreal, QC, CA, (3) King Faisal Specialist Hospital & Research Center, Riyadh, KSA, (4) Jewish General Hospital, Montreal, QC, CA,
PO-GeP-T-682Quantitative Versus Qualitative and Dosimetric Evaluation of Automated Segmentations
J Pursley*, G Maquilan, G Sharp, Massachusetts General Hospital and Harvard Medical School, Boston, MA
PO-GeP-T-689Range Determination for Proton Beams. A Comparison Between Luminescence Imaging in Water and Standard Ionization Chamber Based Methods
J Burg1,2*, F Horst1, J Wulff4,5,6 H Vorwerk2, K Zink1,2,3, (1) University Medical Center Giessen-Marburg, Department of Radiotherapy and Radiooncology, Marburg, Germany (2) University of Applied Sciences, Institute of Medical Physics and Radiation Protection, Giessen, Germany (3) Marburg Ion-Beam Therapy Center (MIT), Marburg, Germany (4) West German Proton Therapy Centre Essen, Essen, Germany (5) West German Cancer Center (WTZ), Essen, Germany (6) Department of Particle Therapy, University Hospital Essen, Essen, Germany
PO-GeP-T-700Reduction of Interobserver Contouring Variations Through a Retrospective, Evidence-Based Intervention
H Patrick1*, L Souhami2, J Kildea1,2, (1) McGill University, Montreal, QC, CA, (2) McGill University Health Centre, Montreal, QC, CA,
PO-GeP-T-708Retrospective Review of Machine Quality Assurance Results of a PET-CT Simulator
Y Cui*, A Rodrigues, S Yoo, F Yin, Duke University Medical Center, Durham, NC
PO-GeP-T-711Robotic 3D Printed Quality Assurance Phantom for Commissioning Lung Calypso
D Capaldi, H Zhang, L Skinner, P Dubrowski, K Bush*, L Xing, B Fahimian, A Yu, Stanford University Cancer Center, Stanford, CA
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-716Sensitivity of Detecting MLC Positioning Errors for SBRT Treatment at Halcyon Linac
J Allen*, W Luo, D Pokhrel, University of Kentucky, Lexington, KY
PO-GeP-T-722Simulation Study On the Correction Factor of Bragg Peak Chamber for Proton Therapy
H. Q. Tan*, J. H. Phua, K. W. Ang, A. Wibawa, Z. Master, S. Y. Park,
PO-GeP-T-747Study On the Verification of the Source Positioning and Dwell Time Based On the Well-Chamber
Qiang Zhao*, Xiangyang Wu
PO-GeP-T-752Systematic Evaluations of a Flat-Panel Imager for Intensity-Modulated Proton Therapy (IMPT) Plan Patient-Specific QA
Z Su1*, S Rossomme2, W Hsi3, (1) University of Florida, Jacksonville, FL, (2) IBA Dosimetry (3) University of Florida, Jacksonville, FL,
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-774The Impact of Jaw Positioning Errors for Dynamic Jaw Delivery in Tomotherapy
Z Hu*, K Zhang, K Men, J Dai, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, BeijingCN,
PO-GeP-T-779The Impact of the Source-Imager-Distance On the Results of EPID-Based Patient-Specific QA
G Kuzmin*, P Xia, P Qi, The Cleveland Clinic Foundation, Cleveland, OH
PO-GeP-T-784The IROC Houston Quality Assurance Center's Independent Peer Review QA Program
D Followill*, J Lowenstein, A Molineu, P Alvarez, P Taylor, S Kry, UT MD Anderson Cancer Center - IROC, Houston, TX
PO-GeP-T-798Total Spine Radiotherapy: A VMAT Approach
E Barnett*, R Chmielewski, S Abbas, Southlake Regional Health Centre, Newmarket, Ontario, Canada
PO-GeP-T-801Towards Automation of Treatment Planning System Quality Control
J A Lovis1*, L Van Dyke1, M Roumeliotis1,2, K Thind1,2, S Quirk1,2, (1) Tom Baker Cancer Centre, Calgary, AB, CA, (2) University of Calgary, Calgary, AB, CA
PO-GeP-T-804Towards Quality Assurance for First AI-Driven Online Adaptive Radiotherapy Based On Failure Mode and Effect Analysis
J Booth1,2*, P Sibolt3, E Laugeman4, B Cai4, D Sjostrom3, S Mutic4, M Perez1, (1) Royal North Shore Hospital, Sydney, NSW, Australia (2)Institute of Medical Physics, School of Physics, University of Sydney, Sydney, Australia,(3)Radiotherapy Research Unit, Department Of Oncology, Herlev And Gentofte Hospital,Denmark, (4) Washington University School of Medicine, St. Louis, MO,
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-832Using Varian Eclipse as An Independent MU Check for MRI-Guided Radiation Therapy
J Yang*, P Zhang, N Tyagi, P Godoy Scripes, J Mechalakos, A Li, D Lovelock, S Lim, Memorial Sloan-Kettering Cancer Center, New York, NY
PO-GeP-T-840Validation of a Software Module to Verify the Fidelity of Arc Plan Delivery in Real Time
V Sarkar*, A Paxton, J Kunz, M Szegedi, G Nelson, P Rassiah-Szegedi, H Zhao, Y Huang, F Su, B Salter, University of Utah, Salt Lake City, UT
PO-GeP-T-842Validation of COMPASS for Pre-Treatment Patient-Specific Quality Assurance
S Sharma*, M Sairem, A Binjola, V Subramani, S Chander, All India Institute Of Medical Sciences
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
PO-GeP-T-849Verification of MV Radiation Isocenter Using the CIRS ISO Phantom Model 23A
W Donahue1*, H Chen1, M Lazea2, Z Chen1, B Wang1, (1) Yale Univ. School of Medicine, New Haven, CT, (2) CIRS, Norfolk, VA
SU-E-TRACK 3-4Multi-Institutional Data Mining of IMRT QA Results and Control Charts Per TG-218 Using the Open-Source Software IQDM
J George1*, S Kucuker Dogan2, M Chamberland3, D Cutright1, (1) University of Chicago Medicine, Chicago, IL, (2) Northwestern Memorial Hospital, Chicago, IL, (3) The University of Vermont Medical Center, Burlington, VT
TH-A-TRACK 3-3Implementation of a Novel HDR Source Tracking Model for Source Quality Assurance Using Radiochromic Film Dosimetry
S Aldelaijan1,2,3*, S Devic2,4, H Bekerat2,4, P Papaconstadopoulos5, J Schneider2,4, J Seuntjens2, R Cormack1, I Buzurovic1, (1) Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medial School, Boston, MA, (2) McGill University, Montreal, QC, CA, (3) King Faisal Specialist Hospital & Research Center, Riyadh, KSA, (4) Jewish General Hospital, Montreal, QC, CA, (5) Netherlands Cancer Institute, NL,
TH-D-TRACK 5-2Estimating Target Registration Error for Automated Deformable Image Registration QA
J Sage*, D Boukerroui, M Gooding, Mirada Medical, Denver, CO
TH-D-TRACK 5-5A Generalizable Contour Validation Method Using Deep Learning-Based Image Classification
Y Zhang*, F Ceballos, Y Liang, L Buchanan, X Li, 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 6-3Failure Mode and Effects Analysis of the Paraspinal Stereotactic Body Radiotherapy (SBRT) Program: Memorial Sloan Kettering Experience
S Lee*, D Lovelock, A Kowalski, R Foley, M Gil, D Higginson, J Yamada, E Yorke, Memorial Sloan-Kettering Cancer Center, New York, NY
TU-EF-TRACK 2-14Scintillation Imaging for 2D Beam Characterization and Output Measurement for MR-Linac Quality Assurance
D Alexander1*, R Zhang2,3, P Bruza1, B Pogue1,2,3, D Gladstone1,2,3, (1) Thayer School of Engineering, Dartmouth College, Hanover, NH, (2) Geisel School of Medicine, Dartmouth College, Hanover, NH, (3) Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon, NH
TU-EF-TRACK 3-4Automated Plan Check Software Using a Multi-Layered Rules and AI Based Approach
Samuel M.H. Luk*, Landon S. Wootton, Alan M. Kalet, University of Washington Medical Center, Seattle, WA
TU-F-TRACK 6-0Why Smart AAPM and COMP Members Do Dumb Things
A Rubinstein1*, D Brown2*, T Pawlicki3*, S Evans4*, (1) McGovern Medical School, Houston, TX, (2) University of California, San Diego, La Jolla, CA, (3) UC San Diego, La Jolla, CA, (4) Yale University, New Haven, CT