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Keywords: Quality Assurance
MO-C930-GePD-F3-4Verification of the MRI-Linac Beam Alignment
JWH Wolthaus*, JJ Bluemink , SJ Woodings , JHW Vries , TL van Soest , JGM Kok , HM van Zijp , SS Hackett , B van Asselen , BW Raaymakers , University Medical Center Utrecht, Utrecht, The Netherlands
MO-C930-GePD-F7-1A Comprehensive Evaluation of the Performance of the CyberKnife M6: A One-Year Study of Daily QA
J Gersh1,2 , R Fulkerson3*, (1) Gibbs Cancer Center & Research Institute - Pelham, Greer , SC, (2) Spectrum Medical Physics, LLC, Greenville , SC,(3) RKF Consultants, Dundee, NY
MO-C930-GePD-F7-2A Comprehensive Tissue Dosimetry Equivalence Evaluation Method for Materials Used in 3D Printing Patient Specific Phantom
L Deng1*, P Qi1 , J Zhang2 , (1) Wuhan University, Wuhan, Hubei, (2) Zhongnan Hospital of Wuhan University, Wuhan, Hubei
MO-E115-GePD-F1-3Fluoroscopy Xray Field to Image Receptor Alignment Comparing 3 and 4% SID Requirement to 80% Overlap Requirement
Weiyuan Wang*, University of Oklahoma Health Science Center, Oklahoma City, OK
MO-E115-GePD-F6-1A Simple Tool to Assess the Gamma Knife Icon IFMM System
J Napoli1*, L Napoli2 , j barbiere3 , A Ndlovu4 , (1) Hackensack university Medical Center, Hackensack, NJ, (2) RCA Research Laboratory (Ret.), Long Beach Township, NJ, (3) ,,,(4) Hackensack university Medical Center, Hackensack, NJ
MO-E115-GePD-F7-1Benchmarking Beam Data for a Halcyon Accelerator
T Zhu*, A Dimofte , C Kennedy , J Zou , D Mihailidis , University of Pennsylvania, Philadelphia, PA
MO-E115-GePD-F7-4Initial Evaluation of the Clinical Reliability of a New Treatment Delivery System Design
JDP Hoisak*, G Kim , K Moore , T Pawlicki , UC San Diego, La Jolla, CA
MO-E115-GePD-F8-2Experience with the Set-Up of a 7T Clinical MRI Scanner
A Fagan1*, R Watson1 , S Carlson1 , K Amrami1 , K Welker1 , J Felmlee1 , (1) Mayo Clinic, Rochester, MN
MO-I345-GePD-F8-6The Design And Development Of A Novel Contrast Detail Phantom For The Objective Assessment Of Ultrasound Systems Used In Image Guided Prostate Brachytherapy
A Doyle1*, J Browne2 , D King3 , F Sullivan4 , D Cody5 , (1) ,,,(2) Dublin Institute of Technology, Dublin 8, Dublin, (3) Blackrock Clinic, County Dublin, Dublin, (4) Prostate Cancer Institute, National University of Ireland, Galway, Ireland, Galway, ,(5) Dublin Institute of Technology, Dublin, Dublin 8
MO-K-DBRA-2BEST IN PHYSICS (THERAPY): Health Information Gateway and Exchange (HINGE): Radiation Oncology Data Analytics Portal
J Nalluri*, W Sleeman , K Syed , P Hudgins , W Nieporte , R Ibrahim , J Palta , M Hagan , P Ghosh , R Kapoor , Virginia Commonwealth University, Richmond, VA
MO-K-DBRA-4Feasibility of Using Machine Learning Techniques to Predict the Results of VMAT Patient-Specific QC Measurements
DA Granville1*, JG Sutherland1,2,3 , DJ La Russa1,2,3 , (1) The Ottawa Hospital, Ottawa, ON, (2) The University of Ottawa, Ottawa, ON, (3) The Ottawa Hospital Research Institute, Ottawa, ON
SU-E-DBRA-1Development of a Compact Time-Resolved 2-Dimensional Dosimetry System
W Cheon1*, H Jung2, M Lee1 , J Lee1 , S Kim3 , S Cho3 , Y Han4 , (1) SAIHST, Sungkyunkwan University, Seoul, (2) University of Texas Southwestern Medical Center, Texas (3) Samsung medical center, Seoul, (4) Sungkyunkwan University School of Med, Seoul
SU-E-DBRA-6QA of Manipulator-Pointing Accuracy for CyberKnife Using a Cylindrical Diode Array
B Yang*, W Wong , W Lam , H GENG , C Kong , T Lee , K Cheung , S Yu , Hong Kong Sanatorium&Hospital, Hong Kong, Hong Kong
SU-E-DBRA-7The 50th Anniversary of the Radiological Physics Center/IROC Houston QA Center Activities and Findings
D Followill*, J Lowenstein , P Taylor , A Molineu , P Alvarez , G Ibbott , W Hanson , S Kry , MD Anderson Cancer Ctr., Houston, TX
SU-F-209-5Use of Small 3D Radiochromic Dosimeters and a Motion Phantom for Dose Verification of Dynamic MLC Tracking Radiotherapy
F Costa1*, M Menten1 , S Doran2 , J Adamovics3 , I Hanson1 , S Nill1 , U Oelfke1 , (1) The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, (2) CRUK Cancer Imaging Centre, The Institute of Cancer Research, London, (3) Rider University, Lawrenceville, NJ
SU-F-KDBRA2-3Establishing the Sensitivity of Halcyon's Automatic Transit Image Acquisition for Treatment Error Detection
X Fave*, KL Moore, UC San Diego Moores Cancer Center, La Jolla, CA
SU-F-KDBRC-6Efficacy of Delivery QA-Free Adaptive Radiotherapy
R Pappafotis*, B Rabatic , T Zhu , J Dooley , R Li , A Wang , R Chen , S Das , J Lian , University of North Carolina, Chapel Hill, NC
SU-H300-GePD-F4-5What Did a Large Cohort Study for Clarkson-Type Secondary Check Find?
H Tachibana*, National Cancer Center EPOC, Kashiwa
SU-H330-GePD-F7-6A Plan Quality Assurance Method for HDR Breast Brachytherapy with Multi-Lumen Balloon Applicator
M Napiwocki1 , Y Le2*, (1) Purdue University, West Lafayette, Indiana, (2) Indiana University- School of Medicine, Indianapolis, IN
SU-H400-GePD-F4-2Failure Modes and Effects Analysis (FMEA) for Mask-Based Radiosurgery On Gamma Knife Icon
Andy Y. Xu*, Tony J.C. Wang, Mike Sisti, C.S. Wuu , Columbia University Medical Center, New York, New York
SU-H400-GePD-F4-3Homogeneous and Heterogeneous 3D Dosimeters for IMRT End-To-End Testing in a Pre-Clinical MR-Linac
B McDonald1,2*, H Lee1, Y Roed1,3, Muhammad Akram1,4, G Ibbott1, (1) Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, (2) The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, (3) Department of Physics, University of Houston, Houston, TX, (4) Department of Physics, The Islamia University of Bahawalpur Pakistan
SU-H400-GePD-F4-4The Total Energy in a Pencil-Beam-Scanning Plan as a Metric for Plan Quality
R Slopsema*, S Flampouri , The university of Florida Health Proton Therapy Instit., Jacksonville, FL
SU-H400-GePD-F4-6A Generalization of Gamma-Index-Analysis Methods to Evaluate the Agreement of Radiation Dose Distributions Varying by Three Or More Orders of Magnitude
L Wilson*, W Newhauser , Louisiana State University, Baton Rouge, LA
SU-H400-GePD-F7-3Portal Dosimetry Based Patient-Specific QA of a New Ring-Gantry Linac Yielded Similar Passing Rate Compared to a Portable Ion Chamber Array Based QA
P Teo*, F Li , K Fallon , P Kosterin , Z Shen , S Jang , R Lalonde , G Bednarz , M Huq , University of Pittsburgh Cancer Institute, Pittsburgh, PA
SU-H430-GePD-F4-1A New Methodology of Evaluation of Respiratory Motion Tracking Errors of CyberKnife Using a 2D Detector Array
B Yang*, T Chiu , M Law , K Tang , H GENG , W Lam , K Cheung , S Yu , Hong Kong Sanatorium & Hospital, Hong Kong, Hong Kong
SU-I-GPD-I-16Validation of PET/CT Measurements of Cobalt 57sheet Source Radionuclidic Impurities
L Zimmermann*, D Jordan , University Hospitals Cleveland Medical Center, Cleveland, OH
SU-I-GPD-J-30A Comprehensive Quality Assurance Program for a Helical 4D-CT Scanner
T Lin*, R Price , C Ma , Fox Chase Cancer Center, Philadelphia, Pennsylvania
SU-I-GPD-P-9Patient Safety: Improved Pre-Treatment Coordination and Communication Through the Use of An Electronic Whiteboard in Radiation Oncology
W Bice*, John Muir Medical Center, Walnut Creek, CA
SU-I-GPD-P-11Implementing a New Modality, Without a Project Manager? Try FMEA
C Buckey*, M Foster , G Penoncello , C Schulz , P Riopelle , P Burris , R Moore , W Rule , Mayo Clinic, Phoenix, AZ
SU-I-GPD-P-12A Novel Quality Management Program for the Halcyon
G Kim1*, T Pawlicki1 , (1) University of California, San Diego, La Jolla, CA
SU-I-GPD-P-24Monitoring Electron Beam Energy Constancy Using a 2D Ionization Chamber Array with Double-Wedge Phantom
S Gao*, M Chetvertkov , P Balter , M.D. Anderson Caner Center, Houston, TX
SU-I-GPD-P-44A Guideline for Medical Physics Transition Into An Existing Radiation Oncology Facility
A Plypoo*, J Roeske , R Patel , C Thomason , R Wynn , H Kang , Loyola university Medical Center, Chicago, IL
SU-I-GPD-P-58Automated Solid Water Phantom Setup Using Light-Dependent-Resistors (LDR)
L Voros*, M Zhang , Y Song , Memorial Sloan Kettering Cancer Center, New York, NY
SU-I-GPD-SPS-3Optically Stimulated Luminescence Dosimeter (OSLD) Linear Vs. Nonlinear Calibration Optimization
K Wake*, S Mahendra , Northwest Medical Physics Center, Lynnwood, WA
SU-I-GPD-T-4Quantitative HDR Afterloader Source Position QA Using Two MicroDiamond Detectors
T Harris1*, R Cormack2 , I Buzurovic3 , D O'Farrell4 , J Bredfeldt5 , M Bhagwat6 , (1) Brigham & Women's Hospital, Boston, MA, (2) Brigham and Women's Hospital, Boston, MA, (3) Brigham & Women's Hospital, Harvard Medical School, Boston, MA, (4) Dana Farber Cancer Institute, Boston, MA, (5) Brigham and Women's Hospital, Boston, MA, (6) Dana Farber/Brigham and Women's Hospital, Boston, MA
SU-I-GPD-T-20Filmless Method for HDR Brachytherapy Applicator Commissioning and Quality Assurance (QA) Using Fluoroscopic Images
H Kang*, R Patel , M Mysz , J Roeske , Loyola university Medical Center, Maywood, IL
SU-I-GPD-T-111Utilization of Depth/planar Multi-Element Detection Arrays for Routine-Beamline and Patient-Specific Quality Assurance Programs of Proton Pencil-Beam-Scanning Beam
W Hsi*, S Rana , L Coutinho , V Chirinos , M Leyva , J Bennouna , Miami Cancer Institute, Miami, FL
SU-I-GPD-T-112Machine Log File Analysis for Quality Assurance of Proton Pencil Beam Scanning System
R Zhang1*, B Clasie2 , N Depauw3 , Y Lin4 , T Shen5 , J Flanz6 , H Lu7 , K Jee8 , (1) Massachusetts General Hospital, Quincy, MA, (2) Massachusetts General Hospital, Boston, MA, (3) Massachusetts General Hospital, Boston, MA, (4) Duke University Medical Center, Durham, NC, (5) Massachusetts General Hospital, Boston, Massachusetts, (6) Massachusetts General Hospital, Boston, MA, (7) Massachusetts General Hospital, Boston, MA, (8) Massachusetts General Hospital, Boston, MA
SU-I-GPD-T-113Dosimetry of Commercially Available Cyclotron-Based Boron Neutron Capture Therapy System: Commissioning and Quality Assurance for Clinical Use
K Hirose1,2*, T Kato1 , H Tanaka3 , K Arai1 , T Motoyanagi1 , T Harada1 , R Shimokomaki1 , A Takeuchi1 , R Kato1 , T Mitsumoto4 , Y Takai1 , (1) Southern Tohoku BNCT Research Center, Koriyama, Fukushima, (2) Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, (3) Kyoto University Research Reactor Institute, Sennan-gun, Osaka, (4) Sumitomo Heavy Industries Ltd., Minato-ku, Tokyo
SU-I-GPD-T-114Quality Management for Proton Stereotactic Radiosurgery Based On TG 100
N Wang*, A Ghebremedhin , A Wroe , B Patyal , J Slater , Loma Linda university Medical Center, Loma Linda, CA
SU-I-GPD-T-123Convergent Pencil Beam Modeling with Monte Carlo Transport Codes for Synchrotron Based Intensity Modulated Proton Beam System Model in Eclipse Treatment Planning System
V Moskvin*, L Zhao , J Farr , St. Jude Children's Research Hospital, Memphis, TN
SU-I-GPD-T-130Proton Beam Stability of ProteusPLUS PBS Proton System: Our Initial Clinical Experience
S Rana*, L Coutinho , A Gutierrez , J Bennouna , M Leyva , V Chirinos , W Hsi , Miami Cancer Institute, Miami, FL
SU-I-GPD-T-132Study of Automated Edge Detection for QA of Proton Beam Distal Uniformity
V Ugarte*, Loma Linda University Medical Center, Loma Linda, California
SU-I-GPD-T-133Effect of Range Shifter and Air Gap On In-Air Spot Size for the ProteusPLUS Pencil Beam Scanning (PBS) Proton Beam
S Rana*, W Hsi , A Gutierrez , L Coutinho , F Khan , M Fagundes , J Bennouna , Miami Cancer Institute, Miami, FL
SU-I-GPD-T-149ChartAlert: Automation for Physics Weekly Patient Chart Checks in Radiation Oncology
S Stathakis*, N Papanikolaou , N Kirby , K Rasmussen , D Saenz , University of Texas HSC SA, San Antonio, TX
SU-I-GPD-T-155Formalization and Automation of Quality Assurance Processes in Radiation Oncology
R Munbodh1*, H Zaveri2 , M Caminati3 , J Bowles3 , (1) Warren Alpert Medical School of Brown University, Providence, RI, United States, (2) Yale University School of Medicine, New Haven, CT, United States, (3) University of St Andrews, St Andrews, United Kingdom
SU-I-GPD-T-157Pre-Treatment Table Coordinate Prediction for Improving Patient Safety in Radiation Therapy
N Astorga*, D Saenz , N Kirby , K Rasmussen , S Stathakis , N Papanikolaou , Ut Health San Antonio, San Antonio, TX
SU-I-GPD-T-158A Correction of the Gamma Test for Monte Carlo Dose Distributions Comparison
M Cohilis*, E Sterpin , J Lee , K Souris , Universite Catholique de Louvain, Woluwe, Brussels
SU-I-GPD-T-168Initial Experience of Per Fraction Software in a Community Setting
A Gonzalez*, University Hospitals Case Medical Center, Elyria, OH
SU-I-GPD-T-172Patient Specific VMAT QA for SRS with PerFraction
J Haywood1*, (1) Mercy Health Partners, Allendale, MI
SU-I-GPD-T-179Development of An In-House Gamma Analysis Software for TomoTherapy Patient-Specific Quality Assurance (QA)
J Kim1*, K Park2 , J Kim2 , H Lee2 , (1) Yonsei Caner Center, Seoul,(2) Yonsei University College of Medicine
SU-I-GPD-T-180Is Portal Dosimetry a Truly Absolute QA Tool for VMAT Pre-Treatment Verification?
H Ai*, K Huang , X Lu , Indiana University- School of Medicine, Indianapolis, IN
SU-I-GPD-T-182Modifying Portal Dosimetry Models to Match Portal Imager Response Improves Results for IMRT QA
R Lalonde1*, M Huq1,2 , D Heron1,2 , (1) UPMC Hillman Cancer Center, Pittsburgh, PA, (2) University of Pittsburgh Cancer Institute, Pittsburgh, PA
SU-I-GPD-T-184Prediction of IMRT/VMAT Quality Assurance Gamma Analysis Passing Rates Using Convolutional Neural Networks
B Ziemer1*, Y Iterian2 , T Solberg1 , G Valdes1 , (1) University of California San Francisco, San Francisco, CA, (2) University of San Francisco, San Francisco, CA
SU-I-GPD-T-186Verification of Volumetric Modulated Arc Therapy Total Marrow Irradiation Using ArcCHECK and EBT3 Films
P Changkaew*, P Tangboonduangjit , N Stansook , R Worawongsakul , Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Rajathevi,, Bangkok
SU-I-GPD-T-188Predictive Gamma Passing Rate Based On Dose Uncertainty for Head-And-Neck and Prostate IMRT
E Shiba1,2*, A Saito1 , M Tsuneda1,3 , M Furumi2 , K Yahara2 , T Ohguri2 , Y Murakami1 , T Nishio3 , Y Korogi2 , Y Nagata1 , (1) Hiroshima University, Hiroshima, Japan, (2) Hospital of the University of Occupational and Environmental Health, Fukuoka, Japan, (3) Tokyo Women's Medical University, Tokyo, Japan
SU-I-GPD-T-189A Novel Prediction of MLC Leaf Positioning Accuracy Based On Artificial Neural Network
B Min1*, H Nam1 , W Cheon2 , Y Han2 , H Lee1 , Y Kim1 , I Jeong1 , S Bang1 , J Park1 , (1) Department of Radiation Oncology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul (2) Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
SU-I-GPD-T-190Dose Calculation Grid for 3D Dose Verification of VMAT Using Rotating 2D Array of Finite-Size Detectors
A Saito*, T Nakashima, T Okumura, M Aita, K Hioki, D Kawahara, H Masuda, K Miki, M Mori, K Naito, Y Ochi, K Tsubouchi, Y Ohno, Y Nagata, Hiroshima University Hospital, Hiroshima, Japan
SU-I-GPD-T-192Alternative Approach for Modeling ArcCheck Phantom Density in Eclipse AAA Algorithm
X Du*, B Rasmussen , UP Health System Marquette General Hospital, Marquette, MI
SU-I-GPD-T-195Irradiation Leakage Observed Outside of PTV in Patient Specific VMAT QA
M Xu1*, H Parks1 , R Foster2 , M Pankuch2 , (1) Northwestern Medicine Cancer Center, Geneva, IL, (2) Northwestern Medicine Chicago Proton Center, Warrenville, IL
SU-I-GPD-T-196Photon Beam Energy Dependence On IMRT QA for Brain Treatment Plan in Radiotherapy
I Khan1 , B Tahir1 , M Rafique1 , T Iqbal1 , A Zahoor1,2 , J Rehman3 , K Iqbal2 , J Chow4*, (1) University of Gujarat, Gujrat, Pakistan, (2) SKMH&RC, Lahore, Pakistan, (3) BUITEMS, Quetta, Pakistan, (4) Princess Margaret Cancer Centre, Toronto, ON
SU-I-GPD-T-197Quantitative Analysis of Patient Specific Quality Assurance On VMAT for Prostate Cancer by Use of Different Two Types of Three-Dimensional Detectors
Y Muraki1*, N Hayashi2 , Y Adachi1 , M Nozue1 , (1) Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, JPN (2) Fujita Health University, Tayoake, JPN
SU-I-GPD-T-199A Comparative Study of Head & Neck VMAT QA Using ArcCheck and MapPhan Diode Detector Array Systems
J Zhang*, J Rahimian , S Lee , W Lien , J Han , D Kim , K Goldman , S Lu , G Hong , Y Qian , Southern California Permanente Medical Group, Los Angeles, CA
SU-I-GPD-T-200Investigating Causes to Unexplained Failures in IMRT QA
A Uejo*, J Gagneur , E Clouser , Mayo Clinic Arizona, Phoenix, AZ
SU-I-GPD-T-202Three-Dimensional Polymer Gel Dosimetry Using An Onboard 0.35 T Magnetic Resonance Imaging Scanner
B Maraghechi , H Gach , D Yang , H Li*, Washington University School of Medicine, St Louis, MO
SU-I-GPD-T-204End-To-End VMAT QA Measurements- RTTs Vs Physicists
E Shekel*, D Epstein , D Levin , Department of Radiotherapy, Assuta Medical Centers, Tel Aviv, N/A
SU-I-GPD-T-232Monte Carlo Verification of Jaws-Only IMRT Dose Distributions From Prowess Panther System On Octavius 4D Phantom
T Tai1,3 , N Son2 , T Loan3 , L Oanh4 , J Chow5*, (1) Dongnai General Hospital, Bien Hoa, Vietnam, (2) Chi Anh Medical Technology Co.,Ltd., Ho Chi Minh, Vietnam, (3) University of Science, Ho Chi Minh, Vietnam, (4) Nguyen Tat Thanh University, Ho Chi Minh, Vietnam, (5) Princess Margaret Cancer Centre, Toronto, ON
SU-I-GPD-T-241Dose-Volume Evaluation On Calculation Grid Size in Prostate VMAT Using the Gaussian Error Function
J Chow1*, R Jiang2 , D Markel1 , (1) Princess Margaret Cancer Centre, Toronto, ON, (2) Grand River Regional Cancer Centre, Kitchener, ON
SU-I-GPD-T-270Determining Blocked Equivalent Square Field Size Using An MLC Centroid Method
W Taylor*, K Woods , D DiCostanzo , Ohio State University Medical Center, Columbus, OH
SU-I-GPD-T-273Use Eclipse Treatment Planning System as Quality Assurance Tool to Verify Multiple-Metastases-Elements Treatment Plan
J Li*, Y Yu , H Liu , Thomas Jefferson University, Philadelphia, PA
SU-I-GPD-T-307RadCalc for Independent Dosimetric Validation of Plans Generated in Accuray Precision Treatment Planning System
T Romaguera*, D Alvarez , S George , V Mishra , A Gutierrez , Miami Cancer Institute, Miami, FL
SU-I-GPD-T-310Evaluation of Methods for Quality Assurance Checks of Ionization Chambers
A Walter*, J Hansen , L DeWerd , University of WI-Madison, Madison, WI
SU-I-GPD-T-317Evaluation of TrueBeam Machine Performance Check for Daily Output Constancy and KV Imaging Offset Checks
X Liang1*, Z Li1 , (1) University of Florida, Jacksonville, FL
SU-I-GPD-T-318Routine Jaw Positioning QA for Analyzing Photon Junctions Using Half Beam Block Matching
K Harpool1,2*, S Crawford1,2 , W Snyder1,2 , P Schantz1,2 , J Dick1,2 , J Wei1,2 (1) Cancer Treatment Centers of America, Newnan, GA, (2) Landauer Medical Physics, LLC, Glenwood, IL
SU-I-GPD-T-319Sensitivity Testing of Quality Assurance (QA) Tasks in Sun Nuclear Corporation (SNC) Machine - A Fully Automated TG-142 QA Solution
G Martin*, A Willet , M Gilmore , L Howard , S Elmer , R Clements , R Biggar , C Rowbottom , The Clatterbridge Cancer Centre, Birkenhead, Wirral, UK
SU-I-GPD-T-323When a Good Monitor Chamber Goes Bad: Diagnosing Atmospheric Communication of a Sealed Monitor Chamber
T McCaw*, B Barraclough , M Belanger , A Besemer , D Dunkerley , Z Labby , University of Wisconsin, Madison, WI
SU-I-GPD-T-325Comparison of TomoTherapy TPS and Measured Beam Profiles Through Detector Response Function Convolutions
D Dunkerley*, M Geurts, University of Wisconsin Madison, WI
SU-I-GPD-T-329Photon Beam Quality Assurance with the Integral Quality Monitor System: A Multicenter Study
A Veres1*, M Farrokhish2 , J DeMarco3 , L Fong de los Santos1 , R Heaton2 , M Islam2 , (1) Mayo Clinic, Rochester, MN, (2) Princess Margaret Cancer Centre, Toronto, Ontario, (3) Cedars-Sinai Medical Center, Los Angeles, CA,
SU-I-GPD-T-373Experimental Validation of SRS VMAT in Small Volumes. Tolerance Criteria for Plan-Specific QA Verification
M Adria-Mora1*, N Carrasco Vela1 , J Bonaque Alandi1 , F Ballester2,3 , J Gimeno Olmos1,3 , V Carmona Meseguer1,3 , F Lliso Valverde1,3 , J Perez-Calatayud1,3 , (1) Hospital Universitari i Politecnic La Fe, Valencia, Spain (2) University of Valencia, Burjassot, Spain (3) Grupo de Investigacion en Fisica Medica IRIMED, UV - Hospital La Fe, Valencia, Spain
SU-I-GPD-T-374End-To-End Testing of Linac-Based SRS Using Radiochromic Film & CIRS STEEV Phantom
R Ambrose*, J Presser , South Nassau Communities Hospital, Oceanside, NY
SU-I-GPD-T-375Quality Assurance Study of Stereotactic Radiosurgery of Multiple Brain Lesions with a Single Isocenter
J Zhang*, J Rahimian , S Lee , W Lien , J Han , D Kim , K Goldman , S Lu , G Hong , Y Qian , Southern California Permanente Medical Group, Los Angeles, California
SU-I-GPD-T-379A Research On the Accuracy of Calypso 4D Electromagnetic Localization System
X Wang*, Z Dai , B Zhang , G Yang , F Li , C Cai , H Jin , Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong
SU-I-GPD-T-380Implementation of the Electronic Portal Imaging Device for Daily CyberKnife Quality Assurance
L Wang*, A Lo , A Ho , Stanford University Cancer Center, Stanford, CA
SU-I-GPD-T-400The Analytical Hierarchy Process (AHP) to Score Plan Quality of Lung SBRT Treatment Plans
A Brito Delgado1*, Z Shi2 , K Rasmussen3 , T Medrano Pesqueira4 , K Kauweloa5 , D Cohen6 , T Eng7 , N Kirby8 , D Saenz9 , S Stathakis10 , N Papanikolaou11 , A Gutierrez12 , (1) University of Kansas Medical Center, Kansas City, KS, (2) UT Health San Antonio, San Antonio, TX, (3) UT Health San Antonio, San Antonio, TX, (4) Centro Oncologico del Estado de Sonora, Hermosillo, Sonora, (5) University of Kansas Medical Center, Kansas City, KS, (6) UT Health San Antonio, San Antonio, Texas, (7) UT Health San Antonio, San Antonio, Texas, (8) UT Health San Antonio, San Antonio, TX, (9) UT Health San Antonio, San Antonio, TX, (10) UT Health San Antonio, San Antonio, TX, (11) UT Health San Antonio, San Antonio, TX, (12) Miami Cancer Institute , Miami, FL
SU-I-GPD-T-418A Phantom-Based Analysis of Small Field Monitor Unit Calculation Agreement Between the Eclipse Treatment Planning System and RadCalc Software
S Ellefson*, E Clouser, Mayo Clinic Arizona, Phoenix, AZ
SU-K-KDBRA1-1A Novel Learning Approach for Predicting MLC Positioning During Dynamic IMRT Delivery
A Osman1*, N Maalej2 , K Jayesh3 , (1) American University of Beirut Medical Center, Beirut, Lebanon,(2) King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia,(3) American Hospital Dubai, Dubai, UAE
SU-K-KDBRA1-5Proof of Principle for End-To-End SRS QA Using a NIPAM 3D Dosimeter
J Adamson1*, J Carroll1 , M Trager1 , S Yoon1 , J Kodra1 , E Maynard2 , M Hilts3 , M Oldham1 , A Jirasek4 , (1) Duke University, Durham, NC, (2) University of Victoria, Victoria, British Columbia, (3) BC Cancer Agency, Kelowna, BC, (4) university British Columbia, Vancouver, BC
SU-L-DBRA-5Hazard Analysis of the Halcyon Linac and Treatment Planning System
T Pawlicki*, G Kim, UC San Diego, La Jolla, CA
SU-L-KDBRA1-1A Machine Learning-Based Approach to Specify the Cause of Error in IMRT Patient Specific QA
S Utsunomiya1*, M Sakai1 , H Koarai1 , T Takizawa2 , N Kushima2 , S Tanabe2 , H Aoyama3 , (1) Graduate School of Health Sciences, Niigata University, Niigata, Japan, (2) Niigata University Medical and Dental Hospital, Niigata, Japan, (3) Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
SU-L-KDBRA1-2An AI Based Algorithm and Framework for Automatic Classification of Events in An Incident Reporting System
Z Sun , W Zong*, B Miller , I Chetty , N Wen , Henry Ford Health System, Detroit, MI
TH-AB-DBRA-1A Beam-Level Delivery Accuracy Study of the Robotic Image Guided Radiosurgery System Using a Scintillator/CCD Phantom
L Wang1*, B Nelson2 , (1) Stanford University Cancer Center, Stanford, CA, (2) Logos Systems International, Scotts Valley, CA
TH-AB-DBRA-8Linac Triggering Latency Quantification for Consideration in Intra-Fraction Motion Management Systems
A Shepard*, C Matrosic , S Jupitz , J Radtke , W Culberson , B Bednarz , University of Wisconsin-Madison, Madison, WI
TH-AB-KDBRA1-2A Method for Failure Prediction and Preventative Maintenance of Multi-Leaf Collimators Via Log Files
D Moyer*, E Wolf , N Kumar , B McGill , M Lamba , D Ionascu , University of Cincinnati, Cincinnati, OH
TH-AB-KDBRA1-5A Practical Device and Procedure for Measuring Vertical and Horizontal Treatment Couch Walkout Under Rotation
I Brezovich*, E Covington , X Wu , R Popple , S Shen , R Cardan , B Guthrie , J Fiveash , M Bredel , university Alabama Birmingham, Birmingham, AL
TH-AB-KDBRB1-8A Stacking Method for Predicting Patient QA Passing Rates Using Machine Learning
D Lam*, T Dvergsten , T Zhao , D Yang , S Mutic , B Sun , Washington University in St Louis, St Louis, MO
TH-AB-KDBRB1-9Using Machine Learning to Develop a Novel Error Detection Algorithm for HDR Brachytherapy
D Sterling*, E Ehler , University of Minnesota, Minneapolis, MN
TH-CD-207-7Implementation of An Automated Real-Time Approach to X-Ray Reject Data Analysis and Presentation
D Zamora, B Walton, K Kanal*, University of Washington, Seattle, WA
TH-CD-DBRA-1A Dynamic Plastic Electric Portal Imaging Device (pEPID) Prototype for Combined Dosimetry and Imaging Applications in Radiotherapy
M Lu1*, Y Rong2 , S Benedict2 , J Zhang1 , J Steiger1 , (1) Varex Imaging Corp, Santa Clara, CA, (2) University of California-Davis, Sacramento, CA
TH-CD-DBRA-2A Novel Six-Degrees-Of-Freedom (6DoF) Robotic Motion Phantom for Quality-Assurance (QA) to Test Advanced Radiotherapy Delivery Approaches
V Caillet1*, S Alnaghy2 , A Kyme3 , D Nguyen4 , R O'Brien5 , J Booth6 , P Keall7 , (1) ACRF Institute X, University Of Sydney, NSW, (2) ,,,(3) The Univeristy of Sydney, Sydney, NSW, (4) The University of Sydney, Eveleigh, NSW, (5) University of Sydney, Camperdown, NSW, (6) Royal North Shore Hospital, St Leonards, ,(7) University of Sydney, Camperdown, NSW
TH-CD-DBRA-7Evaluation Criteria for IROC's Proton Prostate Phantom
P Taylor*, H Mehrens , P Alvarez , D Followill , UT MD Anderson Cancer Center, Houston, TX
TU-C1000-GePD-F4-2Implementation of An Efficient Spot Scanning Proton System QA Utilizing a Conical Scintillator Phantom
J Faught*, O Ates , L Zhao , St. Jude Children's Research Hospital, Memphis, TN
TU-C1030-GePD-F4-2Automation of Monthly Linac QA Using Ion Chamber Arrays and Automation Scripts - a Tenfold Speed Increase
L Skinner*, Y Yang , A Yu , T Niedermayr , Stanford University Cancer Center, Stanford, CA
TU-C1030-GePD-F6-3Evaluation of a Transmission Detector On IMRT QA Using Structure Similarity Index (SSIM)
C Shi*, S Lim , M Chan , Memorial Sloan-Kettering Cancer Center, Basking Ridge, NJ
TU-C930-GePD-F3-1A Simple Approach to Perform Fast Electron Beam QA and Pre-Treatment Verification in Absolute Dose Using EPID
A Sors1*, P Dudouet1,2 , D Franck2 , M Mace1 , P Boucarut1 , C Boutry1 , (1) Clinique du Pont de Chaume - Groupe Oncorad Garonne, Montauban, France (2) Clinique Pasteur - Groupe Oncorad Garonne, Toulouse, France
TU-C930-GePD-F3-4Using a QA Test System to Determine Mechanical Tolerance Limits of Linacs for Highly Complex Treatment Plans
J Stroom*, A Taborda , S Vieira , C Greco , Champalimaud Centre for the Unknown, Lisbon, Lisbon
TU-C930-GePD-F3-5A Deep Learning-Based Prediction Model for Gamma Evaluation in Patient-Specific Quality Assurance
S Tomori1,2*, N Kadoya2 , Y Takayama2 , T Kajikawa2 , K Shima1 , K Narazaki1 , K Jingu2 , (1) National Hospital Organization Sendai Medical Center, Sendai, Japan(2) Tohoku University, Sendal, Japan
TU-D-KDBRB1-3Comparison of Acoustic Detection Methods for Proton Range Verification
W Nie1*, K Jones2 , A Lieth3 , T TeBeest3 , J Foley3 , A Kassaee1 , C Sehgal4 , S Avery1 , (1) Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, (2) Department of Radiation Oncology, Rush University Medical Center, Chicago, IL, (3) Polytec Inc., Dexter, MI,(4) Department of Radiology, University of Pennsylvania, Philadelphia, PA
TU-E115-GePD-F7-1Commissioning of a Pre-Configured Fast-Rotating O-Ring Gantry Linac System and IMRT/VMAT Treatment Delivery Quality
R De Roover1*, K Poels2 , W Crijns2 , A Nulens2 , B Vanstraelen2 , K Haustermans1,2 , T Depuydt1,2 , (1) KU Leuven - University of Leuven, Department of Oncology, B-3000 Leuven, Belgium, (2) University Hospitals Leuven, Department of Radiation Oncology, B-3000 Leuven, Belgium
TU-I345-GePD-F2-1Cone Beam CT as a Clinical QA Tool for Prostate MRI-Only Workflows
E. Palmer1 , E. Persson1,2* , C. Gustafsson1,2 , P. Ambolt1 , A. Gunnlaugsson1 , L. E. Olsson1,2, (1) Department of Hematology, Oncology and Radiation Physics, Skane University Hopsital, Lund, Sweden (2) Department of Medical Radiation Phyiscs, Lund University, Malmo, Sweden
TU-I345-GePD-F2-5MR Simulator Quality Assurance Technique Using An ACR MRI Phantom Based On 3D MR Sequence to Accommodate Radiotherapy Applications
C Ho*, O Wong , J Yuan , K Cheung , S Yu , Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong Island
TU-I345-GePD-F3-2Feasibility Study of the Image-Based Automatic QA for the Halcyon
G Kim1*, J Rah2 , T Lim1 , E Flores-Martinez1 , T Pawlicki1 , (1) University of California, San Diego, La Jolla, CA, (2) Myungji Hospital, Goyang-si, Gyeonggi-do, Republic of Korea
TU-I345-GePD-F3-3Identifying and Correlating Error Trends Through Physics Chart Checking
E Silverstein*, E Clouser , Mayo Clinic Arizona, Phoenix, AZ
TU-I345-GePD-F5-1Achievable Image Quality Metrics From Initial Institutional Experience with Leksell Gamma Knife Icon
C Tien*, F Guo, M Petrongolo, JE Bond, Z Chen, Yale School of Medicine, New Haven, CT
TU-I345-GePD-F7-5Comparison of Multiple Pulse Sequences for MRI Based Gel Dosimetry
B Maraghechi , H Gach , D Yang , H Li*, Washington University School of Medicine, St Louis, MO
TU-K-202-7Machine Learning On Quality Control of Chest CT Chest Exams: Scan Length Optimization
D Huo*, A Scherzinger , University Colorado Denver, School of Medicine, Aurora, CO
TU-K-KDBRC-7Using Dual Step Wedge and 2D Scintillator to Achieve Highly Precise and Robust Proton Range Quality Assurance
W Deng*, W Liu , D Robertson , M Bues , T Sio , S Keole , J Shen , Mayo Clinic Arizona, Phoenix, AZ
WE-AB-202-9Quality Assessment and Repeatability Measurement On DCE-MRI-Derived Blood Volume in Individual Patients During a Clinical Trial
M ARYAL*, C Lee , P Hawkins , C Chapman , A Eisbruch , M Mierzwa , Y Cao , University of Michigan, Ann Arbor, MI
WE-AB-DBRA-2A Novel Source Tracking Method for Accurate and Comprehensive HDR Brachytherapy Quality Assurance Using Radiochromic Film Dosimetry
S Aldelaijan1,2,3,4*, P Papaconstadopoulos2,3 , H Bekerat3 , J Schneider2,3 , J Seuntjens2,5 , I Buzurovic6 , S Devic2,3 , (1) Department of Biomedical Engineering, Montreal Neurological Institute, Montreal, Canada, (2) Medical Physics Unit, McGill University, Montreal, Canada, (3) Department of Radiation Oncology, Jewish General Hospital, Montreal, Canada, (4) Biomedical Physics Department, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia, (5) Department of Oncology, McGill University, Montreal, Canada (6) Department of Radiation Oncology, Dana-Farber/Brigham & Women's Cancer Center, Harvard Medical School, Boston, USA
WE-AB-KDBRB1-9HINGE - A Demonstration of FHIR Framework Principles Into An Integrated Health Care Platform for Quality Assessment, Analytics and Smart Decision-Support Apps in Radiation Oncology
J Nalluri*, W Sleeman , K Syed , P Hudgins , W Nieporte , R Ibrahim , J Palta , M Hagan , P Ghosh , R Kapoor , Virginia Commonwealth University, Richmond, VA
WE-C1000-GePD-F3-2Novel, EPID-Based Quality Assurance Framework for a Small Animal Image-Guided Radiotherapy System
A Anvari*, Y Poirier , A Sawant , University of Maryland School of Medicine, Baltimore, MD
WE-C1000-GePD-F4-4Validation of Acuros-Based Dose Distributions for Varian HDR Surface Applicator Set with Leipzig-Style Cones
R Hunt*, D Cheek , J Molloy , D Pokhrel , University of Kentucky, Lexington, KY
WE-C1000-GePD-F4-6Determination of Source Positions in HDR Applicators for Commissioning/QA Using An Image Plate Device, Raven QA
I Bernstein*, B Yi , university of Maryland School Of Medicine, Baltimore, MD
WE-C1000-GePD-F6-5Dual-Frequency Oscillating Platforms to Simulate Cardiac and Pumonary Motions
S Lenka*, R Khan , S Goddu , Washington University, St. Louis, MO
WE-C1000-GePD-F7-3Quality Assurance for Multi-Focal Single Isocenter Stereotactic Radiosurgery Through 3D Gel Dosimetry
D Saenz1*, K Papanikolaou1, K Rasmussen1 , N Kirby1 , S Stathakis1 , E Pappas2 , Y Li1 , (1) Ut Health San Antonio, San Antonio, Texas, (2) RTsafe P.C., Athens, Greece
WE-C1000-GePD-F7-4The Evaluation of In-Vivo Remote Dosimetry Program
J Lowenstein*, P Alvarez , A Smith , D Followill , UT MD Anderson Cancer Center, Houston, TX
WE-C1000-GePD-F9-1A Sliding Window Approach for Improved VMAT Dose Calculation
H Alahmad*, J Park , N Potter , B Lu , G Yan , C Liu , J Li , University of Florida, Gainesville, FL
WE-C1000-GePD-F9-2Development of a Robust Linac QA Program for Multiple Beam Matched and Dosimetrically Equivalent TrueBeams
N Gupta*, A Ayan , D DiCostanzo , M Carlson , J Woollard , Ohio State University Medical Center, Columbus, OH
WE-C1000-GePD-F9-6Streamlined End-To-End Protocols for Standardized SBRT Plans
R Culcasi1*, G Baran2 , M Snyder1,3 , (1) Wayne State University School of Medicine, Detroit, MI, (2) Karmanos Cancer Institute, Detroit, MI, (3) Beaumont Health System, Royal Oak, MI
WE-C1030-GePD-F4-3Scripting Fast and Automated Evaluation of Apertures Using Polygon Interference
R Cardan1*, R Popple2 , (1) UAB University of Alabama, Birmingham, Birmingham, AL, (2) university Alabama Birmingham, Birmingham, AL
WE-C1030-GePD-F6-2Clinical Experience From MRI-Only Radiotherapy - Pearls and Pitfalls
P Ambolt1*, E Persson1;2 , C Gustafsson1;2 , J Nilsson1 , S Back1 , S Engelholm1 , L Olsson1;2 , A Gunnlaugsson1 , (1) Skane University Hospital, Lund, Skane,(2) Lund University, Malmoe, Skane,
WE-C1030-GePD-F7-3Efficacy of Two Types of 2-D Array Detector System for Quick Beam Profile Measurements
F Duan*, B Morris , W Duggar , C Yang , University of Mississippi Medical Center, Jackson, MS
WE-C1030-GePD-F7-4Small Static Fields: Real-Time Assessment of the Accuracy of a Treatment Planning System (TPS) Calculated Dose with a Step-And-Shoot Method
G Biasi1*, N Hardcastle12 , M Petasecca1 , S Guatelli1 , A Rozenfeld1 , T Kron123 , (1) University of Wollongong, Wollongong, NSW, Australia, (2) Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia, (3) Sir Peter MacCallum Cancer Institute, University of Melbourne, Victoria, Australia
WE-C930-GePD-F4-6Patient Specific Quality Assurance for GammaPod: A Novel Dedicated Breast Stereotactic Radiosurgery Device
S Becker1*, Y Niu2 , Y Mutaf3 , C Yu1,2 , Y Poirier1 , S Feigenberg4 , E Nichols1 , B Yi1 , (1) university of Maryland School Of Medicine, Baltimore, MD, (2) Xcision Medical Systems, Columbia, MD, (3) Boston University Medical Center, Boston, MA, (4) University of Pennsylvania, Philadelphia, Pennsylvania
WE-C930-GePD-F6-4Investigating the Risk Culture in Three Disparate Fields
M Schell1*, K Schell2 , A Abdulla3 , (1) university Rochester Medical Center, Rochester, NY, (2) University of Michigan, Ann Arbor, MI, (3) University of California - San Diego, La Jolla, CA
WE-C930-GePD-F6-5An Open-Source Image Quality Assurance Software for Matlab/Octave
M Bedre*, A Alexandrian , N Papanikolaou , S Stathakis , A Sampson , K Rasmussen , D Saenz , N Kirby , Ut Health San Antonio, San Antonio, TX
WE-C930-GePD-F9-2Low-Resource Vendor-Independent Coplanar Patient Clearance Verification Tool
M Trager*, P Charpentier , Thomas Jefferson University Hospital, Philadelphia, PA
WE-C930-GePD-F9-5Characterizing Isocenter Reproducibility for Linac-Based Stereotactic Treatment Accuracy
D Pinkham1*, S Hancock2 , (1) Yale New Haven Hospital, New Haven, CT, (2) Southeast Missouri Hospital, Cape Girardeau, MO
WE-FG-DBRA-11Knowledge-Based Treatment Planning Increases Complexity and Reduces Delivery Accuracy of VMAT Plans for Prostate Cancer
P Wall1*, J Fontenot1,2 , (1) Louisiana State University, Baton Rouge, LA, (2) Mary Bird Perkins Cancer Center, Baton Rouge, LA
WE-FG-KDBRA1-3Adapting 3D Printer Technology for QA of Gammaknife Icon High Definition Motion Management System
K Grantham*, N Yue , K Nie , Rutgers University, New Brunswick, NJ
WE-FG-KDBRA1-4BEST IN PHYSICS (THERAPY): 4D Dynamic Robotic Phantom System for Patient-Specific Quality Assurance in Real Time Tumor Tracking Radiotherapy
T Shiinoki1*, F Fujii1 , K Fujimoto1,2 , Y Yuasa1,2 , T Uehara2 , T Sera2 , R Onizuka2 , (1) Yamaguchi University, Ube, (2) Yamaguchi University Hospital, Ube,
WE-FG-KDBRA1-6Development of Quality Assurance Method for Dynamic Electron Arc Radiotherapy (DEAR)
X Wang1*, D Sawkey2 , Q Wu1 , (1) Duke University Medical Center, Durham, NC, (2) Varian Medical Systems, Palo Alto, CA
WE-FG-KDBRA1-8Independent Recalculation Outperforms Traditional Measurement-Based IMRT QA Methods in Detecting Unacceptable Plans
S Kry*, M Glenn , D Branco , H Mehrens , A Steinmann , C Peterson , D Followill , MD Anderson Cancer Ctr., Houston, TX
WE-FG-KDBRA1-10Utilizing Historical Performance Data From Trajectory Logs and Service Reports to Establish a Proactive Maintenance Model for Minimizing MLC Downtime
B Wu*, P Zhang , T LoSasso , Memorial Sloan-Kettering Cancer Center, New York, NY
WE-FG-KDBRB1-1Strategies to Mitigate Gantry Angle Specific Inhomogeneities in a Low-Field MR-Linac
C Glide-Hurst1*, S P. Nejad-Davarani1 , J Kenney2 , D Du1 , J Kim1 , I Chetty1 , (1) Henry Ford Cancer Institute, Detroit, MI (2) ViewRay, Oakwood Village, OH
WE-J-KDBRA1-9Common Points of Failure in Radiation Oncology: An in Depth Analysis From the Radiotherapy Incident Reporting and Analysis System (RIRAS)
B Leong*, R Kapoor , M Hagan , J Palta , Virginia Commonwealth University, Richmond, VA
WE-J-KDBRC-7Phantom- and Task-Based Image Quality On a Low Field MR Integrated Treatment Delivery System Compared to Diagnostic Systems
C Brunnquell*, K Vigen , H Musunuru , M Bassetti , B Paliwal , P Yadav , University of Wisconsin-Madison, Madison, WI