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| MO-C930-GePD-F3-4 | Evaluation of a Modified Pencil Beam Algorithm Dose Calculation in the Presence of Intensity Modulators for Intensity Modulated Bolus Electron Beam Conformal Therapy E Hilliard1,2*, R Carver2 , K Hogstrom3 , K Erhart4 , (1) Medical University of South Carolina, Charleston, SC, (2) Mary Bird Perkins Cancer Center, Baton Rouge, LA, (3) Mary Bird Perkins Cancer Center, Baton Rouge, LA, (4) .decimal LLC, Sanford, FL |
| MO-C930-GePD-F7-1 | A Reinforcement Learning Application of Guided Monte Carlo Tree Search Algorithm for Beam Orientation Selection in Radiation Therapy A Sadeghnejad Barkousaraie*, O Ogunmolu , S Jiang , D Nguyen , UT Southwestern Medical Center, Dallas, TX |
| MO-C930-GePD-F7-6 | A Fast Deep Learning Approach for Beam Orientation Selection Using Supervised Learning with Column Generation On IMRT Prostate Cancer Patients A Sadeghnejad Barkousaraie*, O Ogunmolu , S Jiang , D Nguyen , UT Southwestern Medical Center, Dallas, TX |
| MO-E115-GePD-F4-4 | The Feasibility of Clinical Implementation of AAPM TG-218 IMRT Measurement-Based Tolerance Limit Recommendations R Price*, I Veltchev , T Lin , A Eldib , C Ma , Fox Chase Cancer Center, Philadelphia, PA |
| PO-GePV-P-101 | Using Robust Optimization for Skin Flashing in Intensity-Modulated Radiotherapy for Breast Cancer Treatment X Liang1*, J A Bradley1 , R Mailhot Vega1 , M Rutenberg1 , D Zheng2 , N Getman1 , K W Norton1 , N Mendenhall1 , Z Li1 , (1) University of Florida Health Proton Therapy Institute, Jacksonville, FL. (2) University of Nebraska Medical Center, Omaha, NE. |
| PO-GePV-T-49 | Comparison of the Dosimetric Parameters in Esophagus in the Radiotherapy of Lung Cancer Patients Among Three Different Radiation Techniques R He*, S Packinanthan , W Duggar , M Kanakamedala , S Vijayakumar , C Yang , Department of Radiation Oncology, University of Mississippi Med. Center, Jackson, MS |
| PO-GePV-T-139 | Validation of NTCP Model Parameter Estimation for Late Rectal Bleeding: Observations in Patients with Prostate Cancer Who Underwent Intensity-Modulated Radiotherapy in Clinical Practice G Ishii1*, T Hanada2 , T Hasegawa3 , T Ohashi2 , N Shigematsu2 (1) Graduate School of Medical Sciences, Kitasato University, Kanagawa, Japan (2) Keio University, Tokyo, Japan (3) Faculty of Allied Health Sciences, Kitasato University, Kanagawa, Japan |
| PO-GePV-T-151 | A Direct Comparison of Gamma Pass-Rates From Four Different Commercial Systems J Kunz*, V Sarkar , D Spitznagel , G Nelson , M Szegedi , A Paxton , Y Huang , F Su , H Zhao , P Rassiah-Szegedi , B Salter , University of Utah, Salt Lake City, UT |
| PO-GePV-T-153 | Dose Verification of IMRT Plans: Reconsideration of Acceptance Criteria and Analysis Method M Rezaee1*, J Wong2 , (1) Johns Hopkins University, Baltimore, MD, (2) Johns Hopkins University, Baltimore, MD |
| PO-GePV-T-154 | The Impact of Volumetric Modulated Arc Therapy Delivery Errors On 2D and 3D Gamma Passing Rates and DVH-Based Dosimetry for Nasopharyngeal Carcinoma G Li1*, Q Yuan2 , S Bai1 , (1) West China Hospital, Sichuan University, Chengdu, Sichuan, China (2) Wuhuan University, Wuhan, Hubei, China |
| PO-GePV-T-163 | Development of New MLC QA of Volumetric Modulated Arc Therapy Using a High Sampling Rate Log File S Nishiyama*, M Seo , K Makabe , M Kuramochi , T Suzuki , H Tomita , Dept. of Radio Technology, Saiseikai Kawaguchi General Hospital, Kawaguchi, Saitama |
| PO-GePV-T-176 | Evaluation of 3D Vs IMRT Vs VMAT Planning Techniques for Obese Breast Cancer Patients: A Case Study L Fu1*, A Yu2 , A Powers2 , Y Lo2 , (1) Mount Sinai West, New York, NY, (2) Mount Sinai Medical Center, New York, NY |
| PO-GePV-T-194 | Dosimetric Verification of Jaw-Only IMRT On Prowess Panther System Based On AAPM TG 119: A Monte Carlo Study D Tai1*, L Oanh2 , T Loan3 , J Chow4 , (1) Dongnai General Hosipital, Bien Hoa, Vietnam (2) Nguyen Tat Thanh University, Ho Chi Minh, Vietnam (3) VNU-HCM University of Science, Ho Chi Minh, Vietnam (4) Princess Margaret Cancer Centre, Toronto, ON |
| PO-GePV-T-208 | Improving VMAT Prostate Plans by Multiple Reoptimizations V Stakhursky1*, G Gejerman2 , M Ciccone2 , M Esposito2 , M Ahmed2 , M Goldstein2 , (1) New Jersey Urology Cancer Treatment Centers, Saddle Brook, NJ, (2) New Jersey Urology, Saddle Brook, NJ |
| PO-GePV-T-222 | Assessment of Changes in VMAT Treatment Plan Delivery as a Result of Large Dose Changes Without Plan Re-Optimization M Hauze1*, Z Ouyang2 , D Wilkinson2 , (1) Cleveland State University, Cleveland, OH, (2) Cleveland Clinic Foundation, Cleveland, OH |
| PO-GePV-T-227 | Treatment Planning Criteria and Evaluation for Pulsed Low Dose Rate Radiotherapy C Ma1*, M Lin2 , J Li1 , S Kang1 , L Chen1 , R Price1 , (1) Fox Chase Cancer Center, Philadelphia, PA, (2) The University of Texas Southwestern Medical Ctr, Dallas, TX |
| PO-GePV-T-229 | Dosimetric Effects of Hip Replacement Implants On VMAT RT Plans for Prostate Cancer V Stakhursky1*, M Goldstein2 , P Ciccone2 , B Schlecker2 , J Sanzone2 , G Gejerman2 , (1) New Jersey Urology Cancer Treatment Centers, Saddle Brook, NJ, (2) New Jersey Urology, Saddle Brook, NJ |
| PO-GePV-T-234 | Optimized IMRT Leaf Sequencing with Source Model X He1*, R Zhao2 , A Wang3 , X Li3 , T Liu4 , F Shi3 , J Chen1 , (1) Ruijin Hospital, Shanghai,(2) Shanghai Pulmonary Hospital,(3) Datu Medical, Shanghai, (4) Xi'an Jiaotong University, Xi'an |
| PO-GePV-T-251 | Leaf Motion Calculator Effect On Sliding Window IMRT Field Complexity and Plan Quality E Laugeman*, E Pryser , M Schmidt , F Reynoso , Washington University School of Medicine in St. Louis, St. Louis, MO |
| PO-GePV-T-300 | Analysis of Dose Verification Results of Three-Dimensional Conformal Fields Combined with Intensity Modulated Field Plans for 611 Cases of Breast Cancer After Breast Conserving Surgery T Pang*, B Yang , X Liu , J Qiu , N Liu , Peking Union Medical College Hospital, Beijing, 11 |
| PO-GePV-T-340 | Effect of the Rotational Error On the Dose Distribution with Single-Isocenter Technique of Stereotactic Radiotherapy for Multiple Brain Metastases H Nakano1*, S Tanabe1 , S Utsunomiya2 , T Takizawa3 , T Yamada1 , H Sakai1 , H Aoyama4 , (1) Niigata University Medical and Dental Hospital, Niigata, (2) Niigata University Graduate School of Health Sciences, Niigata, (3) Niigata Neurosurgical Hospital, Niigata, (4) Niigata University Graduate School of Medical and Dental Sciences, Niigata |
| SU-I330-GePD-F7-3 | Development of Bidirectional Leaf Sequencing Delivery Technique for Varian Medical Linear Accelerator R Kamal1*, G Singh1 , A Oinam2 , D Thaper1 , V Kumar1 , B Handa1 , (1) Centre for Medical Physics, Panjab University, Chandigarh, (2) Department of Radiotherapy, PGIMER, Chandigarh |
| SU-L-301-5 | Machine Learning with Radiomic Features to Detect the Types of Errors in IMRT Patient-Specific QA M Sakai*1, H Koarai1, M Ueda1, S Shigeta2, H Nakano2, T Takizawa23, S Tanabe2, R Sasamoto1, H Aoyama4, S Utsunomiya1, (1) Niigata University Graduate School of Health Sciences, Niigata, Japan , (2) Niigata University Medical and Dental Hospital, Niigata, Japan , (3) Niigata Neurosurgical Hospital, Niigata, Japan, (4) Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan |
| TH-A-301-4 | Delivering Intracavitary/Interstitial Brachytherapy Equivalent Dose Distributions with An Intracavitary-Only Helical Rotating Shield Brachytherapy Approach for Cervical Cancer Treatment K Hopfensperger1*, Q Adams2, Y Kim2, X Wu3, W Xu3, K Patwardhan2, B Thammavong2, R Flynn2, (1) Department of Biomedical Engineering, University of Iowa, Iowa City, IA; (2) Department of Radiation Oncology, University of Iowa Hospitals and Clinics, Iowa City, IA; (3) Department of Electrical and Computer Engineering, University Of Iowa, College of Medicine, Iowa City, IA, |
| TH-D-304-2 | "Is There a Threshold Limit for Dosimetric Impact Due to Breathing Motion During Lung VMAT Delivery"? -Experimental Measurement of Dose Measured in Moving Lung Tumors R Varadhan1*, S Way2 , M Bedoya3 , N Dickson4 , N Anderson5 , (1) Minneapolis Radiation Oncology, Fridley, MN, (2) Minneapolis Radiation Oncology, Robbinsdale, MN, (3) University of Minnesota, Minneapolis, MN, (4) MINNEAPOLIS RADIATION ONCOLOGY, Edina, MN, (5) Minneapolis Radiation Oncology, New Richmond, WI |
| TU-C1000-GePD-F3-4 | Experimental Characterization of Kilovoltage Intensity Modulated Radiotherapy B Loughery1*, M Snyder2 , (1) Wayne State University, Detroit, MI, (2) William Beaumont Hospital, Royal Oak, MI |
| TU-HI-SAN1-6 | Real-Time Generation of Pareto 3D Dose Distributions for Radiotherapy D Nguyen*, A Sadeghnejad Barkousaraie , C Shen , X Jia , S Jiang , Medical Artificial Intelligence and Automation (MAIA) Laboratory, Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, TX, USA |
| WE-C1000-GePD-F1-2 | Dosimetric Comparison of Several Radiotherapy Techniques in the Treatment of Scalp Cancer D Schulze*, H Zhang , Northwestern Memorial Hospital, Chicago, IL |
| WE-C1000-GePD-F3-5 | Sensitivity of Enhanced Gamma Index to Patient Specific VMAT QA A Sethi1*, J Cozzi2 , H Lavvafi3 , J Ingram4 , R Patel5 , (1) Loyola Univ Medical Center, Maywood, IL, (2) University of Notre Dame, South Bend, ,(3) Loyola University Medical Center, Maywood, IL, (4) Loyola University Medical Center, Maywood, ,(5) Loyola University Medical Center, Chicago, IL |
| WE-C930-GePD-F3-4 | Demonstration of a Novel Technique: Differential Attenuation Multi-Level MLC VMAT A Morrow*, H Chung , Baylor Scott & White Health, Temple, TX |
| WE-HI-SAN1-0 | Efficiency/throughput RT for Low Resource Settings D van der Merwe1*, E Ford2*, M Bazalova-Carter3*, P Liu4*, J Adler5*, (1) International Atomic Energy Agency, Vienna, Austria, (2) University of Washington, Seattle, WA, (3) University of Victoria, Victoria, BC, (4) The University of Sydney, Eveleigh, Australia, (5) Stanford University, Stanford, CA |
| WE-HI-SAN1-1 | The need for Radiotherapy in Low and Middle Income Countries: the IAEA Perspective D van der Merwe1*, E Ford2*, M Bazalova-Carter3*, P Liu4*, J Adler5*, (1) International Atomic Energy Agency, Vienna, Austria, (2) University of Washington, Seattle, WA, (3) University of Victoria, Victoria, BC, (4) The University of Sydney, Eveleigh, Australia, (5) Stanford University, Stanford, CA |
| WE-HI-SAN1-2 | Redesigning IMRT for Low- and Middle-Income Countries D van der Merwe1*, E Ford2*, M Bazalova-Carter3*, P Liu4*, J Adler5*, (1) International Atomic Energy Agency, Vienna, Austria, (2) University of Washington, Seattle, WA, (3) University of Victoria, Victoria, BC, (4) The University of Sydney, Eveleigh, Australia, (5) Stanford University, Stanford, CA |
| WE-HI-SAN1-3 | Kilovoltage arc therapy (KVAT) D van der Merwe1*, E Ford2*, M Bazalova-Carter3*, P Liu4*, J Adler5*, (1) International Atomic Energy Agency, Vienna, Austria, (2) University of Washington, Seattle, WA, (3) University of Victoria, Victoria, BC, (4) The University of Sydney, Eveleigh, Australia, (5) Stanford University, Stanford, CA |
| WE-HI-SAN1-4 | Fixed-beam radiotherapy systems for more cost effective treatment D van der Merwe1*, E Ford2*, M Bazalova-Carter3*, P Liu4*, J Adler5*, (1) International Atomic Energy Agency, Vienna, Austria, (2) University of Washington, Seattle, WA, (3) University of Victoria, Victoria, BC, (4) The University of Sydney, Eveleigh, Australia, (5) Stanford University, Stanford, CA |
| WE-HI-SAN1-5 | Zap Surgical System D van der Merwe1*, E Ford2*, M Bazalova-Carter3*, P Liu4*, J Adler5*, (1) International Atomic Energy Agency, Vienna, Austria, (2) University of Washington, Seattle, WA, (3) University of Victoria, Victoria, BC, (4) The University of Sydney, Eveleigh, Australia, (5) Stanford University, Stanford, CA |
| WE-HI-SAN2-10 | Method for Fluence Field Optimization to Achieve Non-Convex Image Noise Prescriptions with Fluence-Modulated Proton CT J Dickmann*1, P Wesp1, S Rit2, M Pankuch3, R P Johnson4, V Bashkirov5, R W Schulte5, K Parodi1, G Dedes1, G Landry1,6, (1) Ludwig-Maximilians-Universitaet Muenchen, Munich, Germany, (2) Universite de Lyon, Lyon, France, (3) Northwestern Medicine Chicago Proton Center, Warrenville, IL, (4) U.C. Santa Cruz, Santa Cruz, CA, (5) Loma Linda University, Loma Linda, CA, (6) University Hospital, LMU Munich, Munich, Germany |
