50th AAPM Annual Meeting Program
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Sunday, July 27, 2008
Therapy General Poster Discussion
Therapy General Poster Discussion
Sunday 3:00:00 PM - 4:30:00 PM  Room: Exhibit Hall
3:00 PM
SU-GG-T-1
Measurement of Dose Difference in Breast HDR Brachytherpay Using MOSFET Detectors - S. Oh*, T. Suh, S. Kim
3:00 PM
SU-GG-T-2
Inverse Optimization for Cervix Cancer Brachytherapy Including Automatic Loading, DVH Optimization and Modification Restriction Adapted From Manual Planning - C. Kirisits*, P. Trnkova, D. Baltas, J. Dimopoulos, R. Pötter
3:00 PM
SU-GG-T-3
Dosimetric Study of HDR 192Ir and LDR 125I Brachytherapy Sources Using the Penelope Monte Carlo Code - S. Benhabib, D. Zhu, C. Austerlitz, H. Mota, j. sempau, R. Allison, C. Sibata*
3:00 PM
SU-GG-T-4
Dosimetry of Curvilinear Brachytherapy Sources Using TG-43U1 Formalism - P. Aryal*, E. Johnson, A. Meigooni
3:00 PM
SU-GG-T-5
MOSFET In-Vivo Dosimetry for Colorectal Cancer Patients Treated with Shielded Brachytherapy - C. Furstoss*, X. Yan, B. Reniers, E. Poon, A. Hallil, F. Verhaegen
3:00 PM
SU-GG-T-6
Investigation to Replace CT by MRI in Post-Implant Dosimetry of Prostate Permanent Brachytherapy - Q. Chen*, H. Blair, J. Ciezki, A. Mahadevan, N. Began, J. Suh
3:00 PM
SU-GG-T-7
I-125 Seed Dosimetry in the Near Field Using Gafchromic® EBT Film - S. Chiu-Tsao*, J. Hanley, J. Napoli, J. Fan
3:00 PM
SU-GG-T-8
Is a Volume-Based HDR Brachytherapy Optimization Algorithm Comparable to a Classic Line-Based One?: Toward Tumor-Volume Adaptive Brachytherapy for Cervical Cancer By 3T MRI Guidance - Y. Kim*, J. Modrick, J. Bayouth, E. Pennington, S. Bhatia, G. Jacobson
3:00 PM
SU-GG-T-9
Dose Accumulation From Film-Based Brachytherapy Planning and CT-Based External Beam Radiotherapy Planning - J. Lian*, T. Cullip, K. Deschesne, S. Chang
3:00 PM
SU-GG-T-10
Experimental Measurement of Attenuation Factor of a New Type of Shielding Material for a HDR Ir-192 Source - V. Narra*, B. Haffty, A. Khan, M. Gabel, S. Goyal, N. Yue
3:00 PM
SU-GG-T-11
Image Guided Brachytherapy for HDR Prostate Treatment: Pre-Treatment Verification Using Conebeam Imaging to Determine Catheter Displacement - R. Holly*, R. Sankreacha, G. Morton
3:00 PM
SU-GG-T-12
Neutron Energy and Dose Considerations of Cf-252 Brachytherapy Sources for Various Geometries - D. Giantsoudi*, Y. Liu, A. Diaz, P. Mavroidis, N. Papanikolaou
3:00 PM
SU-GG-T-13
Fast Seed Localization On MR Images For Post-Prostate Implant Dosimetry - Q. Wu*, Z. Wang, D. Thongphiew, F. Yin, W. Lee
3:00 PM
SU-GG-T-14
Nomogram Derivation for Cs 131 Prostate Seed Implant - T. Li*, L. Fountain, E. Duffy
3:00 PM
SU-GG-T-15
Inverse Planning Optimization for Hybrid Brachytherapy Plans Using Multiple Seed Types - A. Cunha*, J. Pouliot
3:00 PM
SU-GG-T-16
Quantitative Comparison Dose Delivery From Convention Fletcher T&O Applicator and CT/MR Compatible Applicator - J. Gong*, D. Pavord
3:00 PM
SU-GG-T-17
Optimal Dose Grid and Sampling Resolution for HDR Interstitial Brachytherapy Planning - R. Yao*, J. Chu, Y. Liao, M. Kirk, J. Turian, T. Zusag
3:00 PM
SU-GG-T-18
A Feasibility Study of HDR Source Strength Verification with EDR2 and X-V Films - X. Kong*, H. Zhang, J. Wang, K. Li, N. Gupta
3:00 PM
SU-GG-T-19
Energy Spectrum Based Calculation of the Half and the Tenth Value Layers for Brachytherapy Sources Using a Semi-Empirical Parameterized Mass Attenuation Coefficient Formulism - N. Yue*
3:00 PM
SU-GG-T-20
Dosimetric Analysis and Comparison of Cesium-131 and Iodine-125 for Permanent Prostate Brachytherapy - J. Cao*, E. Gressen, H. Perera, Y. Yu
3:00 PM
SU-GG-T-21
Evaluation of HDR Brachytherapy Dose Distributions Using PRESAGE Three-Dimensional Polymer Dosimeter and Optical CT Readout - S. Siddiqui, S. Brown, S. Bosi, M. Haque, R. Hill, C. Baldock*
3:00 PM
SU-GG-T-22
Dosimetric Analysis of Real Time and Post Implantation Dosimetry for Prostate - M. Smith*, S. Stathakis, G. Swanson, M. Joyner, A. Gutiérrez, N. Papanikolaou
3:00 PM
SU-GG-T-23
A Dosimetric Study Investigating the Impact of Catheter Displacement in HDR Prostate Brachytherapy - D. Hunt*, H. Soliman, R. Sankreacha, G. Morton
3:00 PM
SU-GG-T-24
Dose Difference of Nucletron HDR Planning with Three Source Localization Methods - J. Lian*, K. Eljabaly, L. Potter, K. Deschesne, S. Chang
3:00 PM
SU-GG-T-25
Intercomparison Between Nucletron Plato and Simuplan Systems for Ir-193 HDR Brachytherapy Treatment Planning - M. Ferreira*, H. Mota, M. Wolfe, C. Austerlitz
3:00 PM
SU-GG-T-26
Explorations Of Optimal Dwell Positions In Intracavitary Brachytherapy For Cervical Cancer - A. Hunte*, J. Cunha, J. Pouliot, I. Hsu
3:00 PM
SU-GG-T-27
Evaluation of Planned Dose Using Measured Source Strength for Permanent Prostate Implant - I. Sumida*, K. Konishi, H. Shiomi, F. Isohashi, Y. Yoshioka, T. Inoue
3:00 PM
SU-GG-T-29
Introduction of the Cone Beam CT for 3D Image Guided GYN Brachytherapy - B. Reniers*, F. Verhaegen
3:00 PM
SU-GG-T-30
A Simple Optimization Method for Multi-Lumen Balloon Breast Brachytherapy and Comparisons with Single Dwell Position Balloon Breast Brachytherapy - S. Tafon Penn*, T. Xue
3:00 PM
SU-GG-T-31
Inverse Planning Simulated Annealing [IPSA] Optimization Versus Manual Optimization in the Treatment of Prostate Cancer Using Ir-192 High Dose Rate Brachytherapy - H. Malhotra*, Z. Wang, M. Kuettel, M. Podgorsak
3:00 PM
SU-GG-T-32
Seed Immobilization Using Diathermy Coagulation for Brachytherapy Procedure - K. Yan*, T. Podder, I. Buzurovic, Y. Yu
3:00 PM
SU-GG-T-33
Accurate Localization of the Needle Position During the Real Time Seed Implant Procedure in OR - C. Yang*, N. Sheth, S. Murphy, Y. Chen
3:00 PM
SU-GG-T-34
Xoft Axxent Electronic Brachytherapy System: A Clinical Implimentation Experience - D. Johnson*, I. Rutel, S. Ahmad
3:00 PM
SU-GG-T-35
Dosimetric Comparison of Permanent Prostate Brachytherapy Plans Utilizing Cs-131, I-125 and Pd-103 Seeds - R. Yang*, J. Wang
3:00 PM
SU-GG-T-36
Film Based Treatment Plan Validation for a New Vaginal Applicator Using the Xoft Axxent™ 50 KVp Miniature X-Ray Source - S. Axelrod*, L. Kelley, L. Mantese, T. Rusch
3:00 PM
SU-GG-T-37
Dosimetric Comparison of Cs-131 to I-125 for Treatment of Occular Melenoma - A. Maurizo*, C. Watchman
3:00 PM
SU-GG-T-38
Tracking of Brachytherapy Source Position Using Emission Imaging - H. Song*, J. Bowsher, F. Yin
3:00 PM
SU-GG-T-39
Optimized Planning of a High Dose Rate Prostate Brachytherapy Treatment Using Constrained Nonlinear Programming - J. Barbiere*, A. Ndlovu, J. Napoli, J. Hanley
3:00 PM
SU-GG-T-40
Estimation of Dosimetric Uncertainties for a Patient Specific Treatment Plan in Brachytherapy - P. Manser*, P. Salm, M. Fix
3:00 PM
SU-GG-T-41
Dosimetric Impacts On Tissue Homogeneity Corrections in Electronic Brachytherapy - C. Cheng*, B. Guo, S. Ahmad, N. Papanikolaou, C. Shi
3:00 PM
SU-GG-T-42
Neither Dosimetric Nor Radiobiological Parameters Predict For Biochemical Control in a Large Permanent Prostate Brachytherapy Population - W. Butler*, R. Stewart, G. Merrick
3:00 PM
SU-GG-T-43
X-Ray Transmission of Vaginal Cylinders for Use with the Axxent® Electronic Brachytherapy System - H. Hausen*, L. Kelley, T. Lovoi, L. Mantese, T. Rusch
3:00 PM
SU-GG-T-44
Optimal Needling and Seed Implant Patterns in Prostate Brachytherapy for Multichannel Robotic System - T. Podder*, Y. Hu, J. Cao, Y. Yu
3:00 PM
SU-GG-T-45
Using CT Scout Images for Fletcher-Suit Brachytherapy Treatment Planning - L. Jiang*, J. Turian, M. Kirk, T. Zusag, J. Chu
3:00 PM
SU-GG-T-46
Dose Volume Analysis of HDR Breast Brachytherapy Plan - M. Nair*, J. Colenda, P. Anderson, R. Mark, T. Neumann, S. Gurley
3:00 PM
SU-GG-T-47
Dosimetric Equivalence of Non-Standard Brachytherapy Needle Patterns - J. Pouliot, A. Cunha*
3:00 PM
SU-GG-T-48
Impact of Seed Localization On Post-Implant Dosimetry in Prostate Brachytherapy - M. Chew*, C. Houser, V. Misic, J. Cao, T. Cornwell, Y. Yu, j. Handler, E. Gressen, J. Xue
3:00 PM
SU-GG-T-49
Improved Technique for Determining Y-90 Glass Microsphere Activity Delivered - V. Gates*, R. Salem, S. Spies
3:00 PM
SU-GG-T-50
Dosimetric Impact of Anatomy Variations and Benefits of Mid-Course Replanning for Head and Neck IMRT - P. Lindsay*, G. Yildirim, A. Garden, L. Zhang, Z. Yu, Y. Zhang, X. Zhu, L. Theriot, A. Ahamad, L. Dong
3:00 PM
SU-GG-T-51
Evaluation of the Accuracy of Helical Tomotherapy Planned Adaptive Software by Film and Ionization-Chamber Measurements - H. Westendorp*, D. Kramer, M. Wispelweij, V. Althof, A. Minken
3:00 PM
SU-GG-T-53
Integrating An Online Adaptive IMRT Process to the Prostate IGRT - Q. Wu*, Z. Wang, D. Thongphiew, S. Yoo, W. Lee, F. Yin
3:00 PM
SU-GG-T-54
On-Line Adaptive IMRT for Prostate Cancer - D. Thongphiew*, Q. Wu, W. Lee, V. Chankong, F. Yin
3:00 PM
SU-GG-T-55
Evaluation a Clinically Practical Offline IGART Procedure - Y. Song*, Y. Chi, J. Liang, D. Yan
3:00 PM
SU-GG-T-56
Planning Target Volume Adaptation Using Convex Hull of CTVs for Cervix Cancer Patients - Y. Cho*, V. Kelly, K. Lim, J. Stewart, A. Fyles, K. Brock, J. Moseley, J. Xie, A. Lundin, H. Rehbinder, M. Milosevic
3:00 PM
SU-GG-T-57
Investigation of Dose Interpolation Errors with a 4D Monte Carlo Method - H. Zhong*, J. Siebers
3:00 PM
SU-GG-T-58
Adaptive Fractionation Therapy— I. Basic Concept and Strategy - W. Lu*, M. Chen, Q. Chen, K. Ruchala, G. Olivera
3:00 PM
SU-GG-T-59
Adaptive Fractionation Therapy – II Biological Effective Dose - M. Chen*, W. Lu, Q. Chen, K. Ruchala, G. Olivera
3:00 PM
SU-GG-T-60
Verification of Gated Radiation Therapy: Dosimetric Shift and Target Coverage Due to Residual Motion - I. Yeo*
3:00 PM
SU-GG-T-61
Feasibility Study of Adaptive Intensity-Modulated Radiotherapy Using Field Aperture Re-Optimization - J. Chen*, S. Yartsev, S. Karnas, K. Bzdusek
3:00 PM
SU-GG-T-62
Helical Tomotherapy for Craniospinal Irradiation with Field Junctioning - H. Jaradat*, L. Xu
3:00 PM
SU-GG-T-63
Feasibility Study of Longitudinal Field Junctioning with Helical Tomotherapy - L. Garcia-Fernandez*, L. Gerig, G. Raaphorst, D. Wilkins
3:00 PM
SU-GG-T-64
Dosmietric Comparison of Split Fields and Fixed Jaw IMRT Techniques for Large Head and Neck Target Volumes: - S. Srivastava*, I. Das
3:00 PM
SU-GG-T-65
A Method to Implement Rotational IMRT with Single Arc - G. Chen*, E. Ahunbay, X. Li
3:00 PM
SU-GG-T-66
Evaluation of Laryngeal Sparing Techniques for Head and Neck IMRT - G. Webster, R. Mackay, C. Rowbottom*
3:00 PM
SU-GG-T-67
Pulsed Low Dose-Rate Intensity Modulated Radiation Therapy - P. Chan*, N. Kuritzky, S. Zhang, J. Tsai, S. Li
3:00 PM
SU-GG-T-68
The Impact of Intensity Levels and Number of Segments On Skullbase IMRT Plan Quality and Efficiency - V. Estall*, N. Burnet, K. Burton
3:00 PM
SU-GG-T-69
A Windowing Technique for Assigning GEUD Optimization Objectives as Target Constraints in IMRT Inverse Treatment Planning - G. Cranmer-Sargison*
3:00 PM
SU-GG-T-70
Three-Field IMRT for Large Breasts - G. Zhang*, Y. Niu, Z. Jiang, B. Yi, D. Kessel, L. Ampey, C. Yu
3:00 PM
SU-GG-T-71
Dosimetric Comparison of Bone Marrow-Sparing Intensity Modulated Radiation Theraphy Versus Conventional Techniques for the Treatment of Cervical Cancer - H. Tiryaki*, K. Ahn, J. Roeske, A. Mundt, L. Mell, B. Aydogan
3:00 PM
SU-GG-T-72
A New Technique to Prevent Target Underdosage in Anal Cancer IMRT - S. Gao*, P. Das, J. O'Daniel, M. Bouchard, T. Briere, M. Delclos, S. Krishnan, C. Crane, S. Beddar
3:00 PM
SU-GG-T-73
Inverse Planned IMRT Treatment of the Whole CNS - C. Rowbottom*, P. Whitehurst
3:00 PM
SU-GG-T-74
Comparative Analysis of 3D-CRT Vs. IMRT Techniques in the Treatment of Carcinoma of Prostate - R. Badkul*, T. Sullivan, C. Myers, F. Wang, L. Krishnan, E. Reddy
3:00 PM
SU-GG-T-75
IMRT for Cancers of Paranasal Sinuses and Nasal Cavity: A Planning Study - C. Yang*, T. Liu, M. Mathew, S. Killinger, C. Wright, J. Purdy, A. Chen
3:00 PM
SU-GG-T-76
An IMRT Planning Technique for Maintaining Tolerable Spinal Cord Dose with Unintened Field Overlaps at the Supraclavicular Junction Plane of Head and Neck Radiotherapy - S. de Boer*, O. Hassad, W. Jaggernauth
3:00 PM
SU-GG-T-77
Application and Dosimetric Analysis of Multiple Static Tangential Intensity-Modulated Radiotherapy Beams in An Elliptic Paraboloid-Shaped Superficial Tumor - C. Shang*, T. Williams, R. Girouard, A. Schramm
3:00 PM
SU-GG-T-78
Feasibility of Helical Tomotherapy On a Wide Superficial Area Treatment - K. Jeong*, T. Song, Y. Kim, W. Choi, S. Kim, K. Keum, J. Seong
3:00 PM
SU-GG-T-79
Structure Sparing IMRT by Fluence Avoidance Method: Application To a Pelvic Case With Bilateral Hip Replacements - N. Adnani*, T. Vey
3:00 PM
SU-GG-T-80
Comparisons of Measured Doses Using Ion Chamber and Matrixx for IMRT-QA - M. Yu*, N. Nelson, D. Gladstone
3:00 PM
SU-GG-T-81
Issues in Image-Guided Radiotherapy (IGRT) and Re-Planning with Megavoltage Cone Beam CT (MVCT) - C. Cheng*, Z. Gao
3:00 PM
SU-GG-T-82
Dynamic Jaw for Helical TomoTherapy Delivery - Y. Chen*, W. Lu, Q. Chen, G. Reitz, K. Ruchala, G. Olivera
3:00 PM
SU-GG-T-83
A Scanning Photon Pencil Beam for Temporally Precise IMRT - J. Molloy*, K. Kolsky, J. Antolak, M. Herman
3:00 PM
SU-GG-T-84
Dose Verification of 2D Synchronized DMLC IMRT Delivery to a Moving Target - J. Xu*, N. Papanikolaou, C. Shi, S. Jiang
3:00 PM
SU-GG-T-85
An Alternative Design of Helical Tomotherapy Using Multiple Stationary Cobalt 60 Sources for Treatment of Intra-Cranial Lesions - C. Wu*, F. Guo, T. Liu
3:00 PM
SU-GG-T-86
A Clinical Example of the Helical Tomotherapy Thread Effect: Robustness Discussion - M. Kissick*, L. Schubert, T. Mackie, D. Sidney
3:00 PM
SU-GG-T-87
Variable Beam Dose Rate and DMLC IMRT to Moving Body Anatomy - L. Papiez*, R. Abolfath
3:00 PM
SU-GG-T-88
A Multi-Institutional Retrospective Study On Clinical IMRT Treatment Delivery Efficiency - S. Chang*, K. Deschesne, H. Chen, K. Weeks, C. Sibata, E. Carey, L. Levinson, L. Potter
3:00 PM
SU-GG-T-89
Dosimetry Characteristics of the Discrete Spot Scanning Proton Beam at PTCH - M. Gillin*, X. Zhu, N. Sahoo, M. Bues, G. Ciangaru, B. Arjomandy, F. Poenisch
3:00 PM
SU-GG-T-90
Performance of Dual Layer Micro MLC Versus Standard Single Layer MLC for IMRT Delivery - N. Papanikolaou, Y. Liu*, T. Roland
3:00 PM
SU-GG-T-91
Decreasing IMRT Delivery Time by Accounting for Secondary Jaw Movement - A. Hwang*, G. Mu, P. Xia
3:00 PM
SU-GG-T-92
Dynamic Leaf Sequencing with Monitor Units Control - C. Wang*, S. Luan, G. Tang, D. Chen, C. Yu
3:00 PM
SU-GG-T-93
Dosimetry Evaluation and Correction of DMLC Control Points for Sliding Window IMRT - G. Grigorov*, J. Chow, N. Yazdani, D. Markel
3:00 PM
SU-GG-T-94
An Optimal Jaw Setting for An Electron-Specific Multileaf Collimator (eMLC) Developed for Modulated Electron Radiation Therapy (MERT) - A. Eldib*, L. Jin, Q. Xu, J. Fan, J. Li, C. Ma
3:00 PM
SU-GG-T-95
The Dosimetric Advantages of Varian HD120 MLC Over Millennium120 MLC for Photon External Beam Treatment - Y. Xu*, C. Wuu
3:00 PM
SU-GG-T-96
IMRT Leaf Sequencing with Intensity-Based Segment Weight Optimization - S. Luan*, C. Wang, G. Tang, D. Chen, C. Yu
3:00 PM
SU-GG-T-97
Monte Carlo Modeling of Modulated Electron Beams Delivered Through a Photon Multileaf Collimator - P. Tynan*, S. Stathakis, C. Esquivel, N. Papanikolaou
3:00 PM
SU-GG-T-98
An Exploration of the Use of Custom Compensators for Modulated Electron Radiotherapy - P. Tynan*, S. Stathakis, N. Papanikolaou
3:00 PM
SU-GG-T-99
Dynamic Delivery of IMRT Using Independent Jaws - Y. Zhang*, J. Dai, L. Ma, Y. Hu
3:00 PM
SU-GG-T-100
Optimal Field Splitting in IMRT - X. Dou*, X. Wu, Y. Kim, J. Bayouth, J. Buatti
3:00 PM
SU-GG-T-101
Validation of Collapse Cone Convolution Superposition Algorithm Using Ion Chamber and Field Measurements - O. Calvo*, C. Buckey, S. Stathakis, A. Gutiérrez, N. Papanikolaou
3:00 PM
SU-GG-T-102
Evaluation of Smoothing/Complexity Adjustment Feature for Three IMRT Inverse Treatment Planning Systems - C. Anker, B. Wang, M. Tobler, Y. Hitchcock, B. Salter*
3:00 PM
SU-GG-T-103
Minimum Segment Size for the Collapsed Cone Convolution Superposition Algorithm - C. Buckey*, S. Stathakis, O. Calvo, N. Papanikolaou
3:00 PM
SU-GG-T-104
A Preliminary Study On Comparison of Dose-Volume Based Optimization and Equivalent Uniform Dose Based Optimization for IMRT Plans - B. Subramaniam*, W. Ding
3:00 PM
SU-GG-T-105
Optimal Mix of Electron and Photon Energies Using Linear Programming - G. Jozsef*, S. Becker, J. De Wyngaert
3:00 PM
SU-GG-T-106
Measurement of X-Ray Contamination From Metallic Filters in Electron Beams - D. Lightfoot*, S. Hartzell
3:00 PM
SU-GG-T-107
Genetic Optimizers and Control of DMLC IMRT Delivery to Moving Body Anatomy - R. Abolfath*, L. Papiez
3:00 PM
SU-GG-T-108
Using Respiratory Tumor Motion as a Degree of Freedom to Improve 4D IMRT Plans - Y. Suh*, L. Papiez, P. Keall
3:00 PM
SU-GG-T-109
Four Dimensional Inverse Planning for Intensity Modulated Radiation Therapy - Y. Ma*, K. Lee, L. Xing
3:00 PM
SU-GG-T-110
An N-State 4D Convolution Dose Calculation Algorithm in Proton and Photon Therapy - Y. Li*, X. Li, X. Pan, L. Dong, R. Mohan, X. Zhang
3:00 PM
SU-GG-T-111
A Simulation Study of An Online Adaptive Treatment Technique for Tomotherapy to Reduce Intra-Fraction Motion Effects - X. Mo*, T. Mackie
3:00 PM
SU-GG-T-112
A Concept of Pseudo-4D IMRT Optimization Using Phase-Dependent Apertures - K. Lee*, Y. Ma, L. Xing
3:00 PM
SU-GG-T-113
Using Probability Density Functions of Respiratory Motion to Model Motion Effects On Dose Distributions and Optimize Treatment Planning for Lung Cancers - J. Jin*, M. Ajlouni, F. Kong, S. Ryu, I. Chetty, B. Movsas
3:00 PM
SU-GG-T-114
4D Planning From Multi Phase 3D Dose Distribution and Linear Transformation On a Single Phase Plan - T. Roland*, Y. Liu, N. Papanikolaou
3:00 PM
SU-GG-T-115
The Impact of Longitudinal Breathing Randomness for Tomotherapy Delivery - M. Kissick*, R. Flynn, D. Westerly, P. Hoban, X. Mo, E. Soisson, K. McCall, T. Mackie, R. Jeraj
3:00 PM
SU-GG-T-116
Evaluation of MLC Radiotherapy System Synchronized with Moving Target - S. Park*, H. Jung, K. Kim, D. Lee, Y. Ji
3:00 PM
SU-GG-T-117
Uniform Treatment of a Moving Target with Un-Gated Stationary Fields - J. Barbiere*, J. Hanley
3:00 PM
SU-GG-T-118
Fast Multicriteria IMRT Beam-Fluence Map Optimization Using CVaR Linear Programming Methods - O. Gozbasi*, S. Ahmed, I. Crocker, E. Schreibmann, T. Fox, M. Savelsbergh
3:00 PM
SU-GG-T-119
Application of the Genetic Algorithm and Distributed Computing to Gantry Angle Optimization in IMRT - D. Nazareth*, S. Brunner, M. Jones, M. Podgorsak, M. Kuettel
3:00 PM
SU-GG-T-120
Design of a Next Generation Treatment Planning System That Incorporates Motion and Uncertainty in Inverse Planning - J. Unkelbach*, B. Martin, T. Bortfeld
3:00 PM
SU-GG-T-121
Multiobjective Optimization for IMRT Using Genetic Algorithm - M. Phillips*, M. Kim, A. Ghate
3:00 PM
SU-GG-T-122
Implementation of Random Patient Setup Uncertainties Into Pinnacle-Based IMRT Optimization - J. Moore*, J. Gordon, K. Bzdusek, J. Siebers
3:00 PM
SU-GG-T-123
The Study of Clinical Application of GEUD-Based Optimization in IMRT Treatment Planning for Lung Cancer Patients - X. Pan*, X. Zhang, Y. Li, R. Mohan
3:00 PM
SU-GG-T-124
Probability Density Distribution of Proton Range as a Function of Noise in CT Images - A. Chvetsov*, J. Palta
3:00 PM
SU-GG-T-125
Incorporating Uncertainty in Radiation Therapy Optimization with Scenario and Voxel Sampling - B. Martin*, J. Unkelbach, D. Castanon, T. Bortfeld
3:00 PM
SU-GG-T-126
Robust Optimization for Lung Treatment in the Presence of Dosimetric Errors - O. Nohadani*, B. Martin, J. Seco, D. Craft, T. Bortfeld
3:00 PM
SU-GG-T-127
Effect of Fluence Smoothing On Plan Quality and Delivery Accuracy in Intensity Modulated Radiotherapy - S. Pandya*, J. Burmeister
3:00 PM
SU-GG-T-128
Rapid Dose Calculation for Dose Per MU Verification of IMRT Fields - T. Zhu*, R. Karunamuni, J. Finlay, B. Bjarngard
3:00 PM
SU-GG-T-129
A High Resolution Fluence-Convolution Model for Prediction of Amorphous Silicon EPID IMRT Images - P. Greer*, P. Cadman, K. Bzdusek
3:00 PM
SU-GG-T-130
A Software Tool for IMRT and EPI Dosimetry Research - P. Vial*, P. Hunt, P. Greer, L. Oliver, C. Baldock
3:00 PM
SU-GG-T-131
Comparison of Mapcheck and EDR2 Film for IMRT QA - T. Takele*, M. Lamba, H. Elson
3:00 PM
SU-GG-T-132
Evaluation of Hybrid Plan IMRT QA with a 2D Ionization Chamber Array - T. Depuydt*, I. Gomola, F. Van den Heuvel
3:00 PM
SU-GG-T-133
TomoTherapy for Post-Mastectomy Radiotherapy (PMRT): TLD Chest Wall Dose Measurements - S. Ito*, B. Parker, D. Cheek, R. Levine, J. Gibbons, K. Hogstrom
3:00 PM
SU-GG-T-134
Dosimetric Verification of Dose Calculation Algorithms for IMRT Treatment Plan - J. Lah*, J. Hong, J. Lee, J. Chung, K. Cheong, T. Suh
3:00 PM
SU-GG-T-135
Evaluation of PRESAGE/optical-CT 3D Dosimetry for Commissioning a Linac for IMRT - M. Oldham*, D. Sterling, H. Sakhalkar, A. Molineu, J. Adamovics, G. Ibbott
3:00 PM
SU-GG-T-136
Real Time Delivery Verification Using Exit Detector Data - Q. Chen*, G. Reitz, S. Finley, D. Westerly, C. Koenigs, K. Ruchala, G. Olivera
3:00 PM
SU-GG-T-137
Patient Based IMRT QA Using Fluence Map Measurements - G. Webster, P. Whitehurst, R. Mackay, C. Rowbottom*
3:00 PM
SU-GG-T-138
Dosimetric Characteristics of 2D Ion Chamber Array Matrix for Verification Radiotherapy Treatments - S. Saminathan*, R. Manicham, S. Supe
3:00 PM
SU-GG-T-139
Evaluation of a Biplanar Diode Array Detector for MLC- and Compensator-Based IMRT QA - V. Feygelman*, K. Javedan, G. Nilsson, K. Forster
3:00 PM
SU-GG-T-140
Evaluation of IMRT Plans From Three Treatment Planning Systems Based On Independent Monte Carlo Dose Calculation - Z. Chi*, J. Li, L. Jin, J. Fan, T. Lin, Q. Xu, C. Ma
3:00 PM
SU-GG-T-141
The Statistical Analysis of Patient Specific DQA Plans of IMRT - J. Chung*, J. Park, Y. Park, H. Kim, C. Choi, J. Kim, I. Kim, I. Kim, H. Wu, E. Chie, T. Suh, S. Ye
3:00 PM
SU-GG-T-142
Organ Motional Effect On the Dose Distribution in Intensity Modulated Radiation Therapy - J. Song*, M. Yoon, T. Nam, S. Ahn, W. Chung, B. Nah
3:00 PM
SU-GG-T-143
Comparisons of a Monte Carlo IMRT Plan Recalculation Results with the Pinnacle Treatment Planning System - J. Cui*, S. Davidson, V. Willcut, I. El Naqa, D. Followill, J. Deasy
3:00 PM
SU-GG-T-144
IMRT Pre-Treatment Plan and In-Vivo Verification with 2D-ARRAYs and Multi-Wire Ionisation Chambers - B. Poppe*, H. Looe, A. Ruehmann, D. Harder, K. Willborn
3:00 PM
SU-GG-T-145
Dose Response of Spectral Change of AS1000 EPID - M. Lin*, C. Lee, T. Chao, C. Tung
3:00 PM
SU-GG-T-147
Automatic Detection of MLC Errors in VMAT Delivery - A. Usynin*, C. Ramsey
3:00 PM
SU-GG-T-148
Quantification of IMRT Patient Dose Deviations Due to Daily MLC-Leaf Positional Variations - N. Dogan*, H. Saleh, M. Fatyga, C. Bartee, J. Siebers
3:00 PM
SU-GG-T-149
4D IMRT Quality Assurance (QA) by Dynamic Log File Analysis - J. Xu*, T. Roland, C. Shi, N. Papanikolaou
3:00 PM
SU-GG-T-150
Commissioning and Validation of a Novel Measurement-Based IMRT QA Method, Incorporating Dose Recalculation On Patient CT Data - B. McCurdy, L. Mueller, E. Backman, S. Venkataraman*, E. Fleming, G. Asuni, M. Jensen, F. Ur-Rehman, S. Pistorius
3:00 PM
SU-GG-T-151
On the Sensitivity of Patient-Specific IMRT QA to MLC Position Errors - G. Yan*, T. Simon, L. Peng, C. Fox, C. Liu, J. Li
3:00 PM
SU-GG-T-152
Applying Imaging Detector Data for Daily Monitoring of Dose Output in Helical Tomotherapy - D. Verellen*, K. Tournel, N. Linthout, I. Van de Vondel, M. Duchateau, S. Lelie, T. Gevaert, T. Reynders, G. Storme
3:00 PM
SU-GG-T-153
Scaling the Prescription Dose: How Accurate Is the Varian Delivery System? - D. Sterling*, H. Sakhalkar, M. Oldham
3:00 PM
SU-GG-T-154
Use of I’mRT MatriXX for Routine Dynamic MLC QA and IMRT Dose Verification - A. Bhardwaj*, S. Sharma, F. Patel, A. Oinam, S. Ghoshal, R. Kapoor, R. Kumar, P. Goswami
3:00 PM
SU-GG-T-155
Quality Assurance for IMRT in Belgium: Verification of the Integral Delivered Dose with Alanine-ESR Dosimetry - b. schaeken*, D. Van den Weyngaert, h. janssens, D. Verellen
3:00 PM
SU-GG-T-156
Patient Specific QA Results for Step and Shoot and Sliding Window Deliveries of IMRT Beams as Implemented by Two Treatment Planning Systems - J. Villarreal-Barajas*, K. Breitman, W. Smith
3:00 PM
SU-GG-T-157
Commission of 2.5 Mm ModuLeaf MLC for Stereotactic Radiation Therapy - K. Li*, X. Kong, J. Wang, N. Gupta, M. Weldon, H. Zhang, D. Zhang, N. Mayr
3:00 PM
SU-GG-T-158
Statistical Process Control and Independent MU Calculations as a Surrogate for IMRT QA Measurements - J. Shoales*, B. Fang, R. Weinberg, P. Montanaro, A. Boyer
3:00 PM
SU-GG-T-159
Has IMRT Delivery Improved in the Last 5 Years? - A. Molineu*, J. Lowenstein, N. Hernandez, P. Alvarez, D. Followill, G. Ibbott
3:00 PM
SU-GG-T-160
Single Field IMRT QA Is Insensitive to Dosimetric Errors - J. Kruse*
3:00 PM
SU-GG-T-161
Commissioning IMSure 3.1 for IMRT Second Calculation Utility Program - B. Shahine*, R. Ramaseshan
3:00 PM
SU-GG-T-162
Correlations Between Potential Setup Errors and Dose Gradients When Verifying Patient Specific DQA Plans of IMRT - J. Park*, J. Chung, Y. Park, H. Kim, C. Choi, C. Park, S. Ha, I. Kim, S. Ye
3:00 PM
SU-GG-T-163
Discrepancy of IMRT Dose Delivery Due to Dynamic MLC Gravity Effect - J. Lee*, S. Hong, K. Choi, J. Chung, D. Lee, T. Suh
3:00 PM
SU-GG-T-164
Quality Assurance and Dosimetric Analysis of Intensity Modulated Radiotherapy Using Compensators for Head and Neck Cancers - A. Tyagi*, S. Nangia, K. Chufal, M. Mishra, D. Ghosh, M. Singh
3:00 PM
SU-GG-T-165
Multiple MLC Carriage Groups and Single Point IMRT QA Measurements - M. Ferenci*, R. Beatty, C. Saw
3:00 PM
SU-GG-T-166
Quality Assurance for SRS/SRT IMRT - F. Guo*, Z. Chen, J. Deng, Y. Fan, R. Nath
3:00 PM
SU-GG-T-167
The Effect of Leaf Transmission On IMRT QA in a MiniMLC Linear Accelerator - V. Misic*, A. Doemer, A. Harrison, K. Fallon, Y. Yu, Y. Xiao
3:00 PM
SU-GG-T-168
Measurement Errors Associated with Linear Accelerator Commissioning Data - C. Fox*, J. Sun, T. Simon, W. Simon, J. Palta, C. Liu
3:00 PM
SU-GG-T-169
Comparison of the Efficacy of MapCHECK and Portal Dosimetry in the Pretreatment QA of IMRT Treatment Plans - J. Liu*, Z. Wang, L. Kumaraswamy, D. Nazareth, M. Podgorsak, H. Malhotra
3:00 PM
SU-GG-T-170
Using a 3D Diode Array System to Perform Routine IMRT Machine QA - S. Tafon Penn*, T. Xue
3:00 PM
SU-GG-T-171
Accuracy in the Dose Delivery of Sliding Window IMRT as a Function of Gantry and Collimator Angles - J. Liu*, Z. Wang, M. Podgorsak, S. de Boer, L. Kumaraswamy, H. Malhotra
3:00 PM
SU-GG-T-172
Compensator Based Intensity Modulated Radiation Therapy Dosimetry Using EDR2 Film - R. Srivastava*, C. De Wagter
3:00 PM
SU-GG-T-173
Investigation of the Transmission Detectors for Daily Dose Verification and QA of IMRT Treatments - P. Desai*, S. Stathakis, A. Gutiérrez, P. Mavroidis, N. Papanikolaou
3:00 PM
SU-GG-T-174
Angular Dependence of Sensitivity of Surface Diodes - P. Jursinic*
3:00 PM
SU-GG-T-175
Analysis of Inter- and Intra-Fraction Breathing Patterns Using the Varian Real Time Position Management System - M. Whitaker*, J. Whitaker, S. Todd, M. Kenny, J. Hagekyriakou, T. Kron
3:00 PM
SU-GG-T-176
Helical Tomotherapy Room Shielding: Leakage Radiation Levels and Tenth Value Layer Measurements Around Tomotherapy Machine - S. Goddu*, J. Garcia Ramirez, E. Kintzel, S. Mutic, S. Chaudhari, E. Klein, D. Rangaraj, D. Low
3:00 PM
SU-GG-T-177
Determination of SOBP PDD for Therapeutic Proton Beams - T. Zhu*, R. Slopsema, R. Karunamuni
3:00 PM
SU-GG-T-178
End Effect Influence On Segment Precision - D. Lightfoot*, S. Hartzell, K. Stevenson
3:00 PM
SU-GG-T-179
Analysis of Electron Cutout Factor Measurements - C. Esquivel*, S. Rodriguez, N. Papanikolaou
3:00 PM
SU-GG-T-180
Measurement Instrumentation to Determine RF Noise Generated by a Medical Linac - B. Burke, M. Lamey, S. Rathee, B. Fallone, M. Carlone*
3:00 PM
SU-GG-T-181
4D Dosimetry in the RapidArc Treatments Using Delta4 - G. Nilsson*, J. Bocanek
3:00 PM
SU-GG-T-182
Effects of Block Location On Dosimetry in the Total Body Irradiation (TBI) - M. Gao*, G. Glasgow, A. Sethi, I. Rusu, Y. Ke, M. Xu, J. Roeske
3:00 PM
SU-GG-T-183
Measuring the Spot Size of a Proton Therapy Scanning Nozzle - M. Bues*, G. Ciangaru, R. Gaza, K. Matsuda, M. Gillin, A. Smith
3:00 PM
SU-GG-T-184
Photon Energy Spectrum Prediction of a Medical Linear Accelerator Using Scatter Radiation Analysis - M. Hawwari*, M. Lamba, H. Spitz, H. Elson
3:00 PM
SU-GG-T-185
The Effect of Clothing On the Skin Dose During 6 MeV Total Skin Electron (TSE) Irradiation - R. Ramer*, P. Tynan, T. Eng, C. Esquivel, N. Papanikolaou
3:00 PM
SU-GG-T-186
Simulation of Room Distortion On Measurements of RF Noise Due to a Medical Linac - M. Lamey, B. Burke, M. Carlone, S. Rathee, B. Fallone*
3:00 PM
SU-GG-T-187
Predicting Calibration Curves for Kodak XV Film Using Model-Based Parameters - S. Hsu*, R. Kulasekere, P. Roberson
3:00 PM
SU-GG-T-188
Comparative Analysis of Leakage and Transmission Radiation Measurements with Different Film Detectors - P. Ballesteros Zebadúa*, J. Larraga-Gutierrez, O. García-Garduño, A. Davalos, M. Villafuerte, S. Jimenez, M. Lopez
3:00 PM
SU-GG-T-189
Comprehensive Evaluation of the Bow Tie Filter in the Elekta XVI CBCT System - S. Ozawa*, L. Peng, W. Song, S. Kamath, C. Kurokawa, C. Liu, J. Palta, K. Karasawa, J. Li
3:00 PM
SU-GG-T-190
In-Vivo Surface Dosimetry With An Optically Stimulated Luminescence Dosimeter - A. Sethi*, M. Xu, M. Gao, Y. Ke, I. Rusu, J. Roeske
3:00 PM
SU-GG-T-191
Comparison of Magnetization Transfer Imaging and CPMG for 3D Polymer Gel Dosimetry - H. Kubo*, Y. Watanabe
3:00 PM
SU-GG-T-192
In-Vivo Skin Dosimetry with EBT Radiochromic Films in Helical Tomotherapy Treatments - M. Avanzo*
3:00 PM
SU-GG-T-193
Measurement of Penumbra Using a 2D Ionization Chamber Array - D. Roberts*, D. Litzenberg
3:00 PM
SU-GG-T-194
Experimental Determination of Correction Factors for Miniphantoms with Different Z for Measurement of In-Air Dosimetry Quantities at Off-Axis Points - A. Dimofte*, T. Zhu
3:00 PM
SU-GG-T-195
Ion Chamber Collection Efficiency Considerations for Un-Flattened X-Ray Beams - S. Johnsen*
3:00 PM
SU-GG-T-196
Fabrication of A 3D Moving Phantom - S. Huh*, J. Palta, S. Duvvuri
3:00 PM
SU-GG-T-197
Measurement of Dosimetric Impact of Fiducial Makers On Proton Dose Distribution - Y. Tsunashima*, S. Vedam, T. Sakae, L. Dong, R. Mohan
3:00 PM
SU-GG-T-198
Measurements and Evaluation of Doses Outside the Treatment Volume From Photon External Beam Radiation Therapy - C. Wuu*, C. Elliston, Y. Xu, D. Brenner
3:00 PM
SU-GG-T-199
Feasibility Study of Parallel-Opposed GRID Therapy Using a Multileaf Collimator - K. Dou*, J. Ashburn, J. Hafendorfer, P. Aryal, E. Johnson, A. Meigooni, R. Zwicker
3:00 PM
SU-GG-T-200
Evaluation of a New Detector for Measuring Small Field Dosimetry - M. Taylor*, J. Shi, M. Lambert
3:00 PM
SU-GG-T-201
Dosimetric Aspects in the Transmission Factor Determination of a Multileaf Collimator (MLC) - G. Reséndiz González*, M. Perez Pastenes, E. Figueroa Medina
3:00 PM
SU-GG-T-202
Study of the Effect of Size of the Beam Scanning Diodes On Measurement of Beam Profiles of the Clinical High Energy Photon Beams - N. Sahoo*, A. Kazi, M. Hoffman
3:00 PM
SU-GG-T-204
Estimation of Organ Doses in Total Body Irradiation - S. Huang, C. Yu, M. Liu, J. Chiu, F. Hsu*
3:00 PM
SU-GG-T-205
Simple Description of Detector Volume Effect by Means of Cumulants - M. Saez-Beltran*, F. Saez-Beltran, M. Benito-Bejarano, A. Lopez-Fernandez
3:00 PM
SU-GG-T-206
Phantom Study of Evaluating the Geometrical Accuracy of Stereotactic Radiosurgery Sysetm Using CBCT and AlignRTTM - S. Huh*, D. Kahler, Z. Li, Z. Zhao, R. Malyapa, J. Palta
3:00 PM
SU-GG-T-207
Monte Carlo Calculations of Correction Factors for Plane-Parallel Ionization Chambers in Clinical Electron Dosimetry - F. Araki*
3:00 PM
SU-GG-T-208
Fast Real Time Calibration of Varian 2100 Series LINACs - K. Chu*, S. Tong
3:00 PM
SU-GG-T-209
Monthly Quality Assurance For Rotational Delivery Using An Ion Chamber Array - J. Danzer*, C. Ramsey, M. Neeley, C. Harris, Y. Charara, M. Sharp
3:00 PM
SU-GG-T-210
A Comparison of Dosimetry Devices - D. Pavord*
3:00 PM
SU-GG-T-211
MapCHECK Patient Specific QA Cannot Suffice for MLC QA - M. Backer*, S. Yaddanapudi, V. Willcut, D. Rangaraj, H. Li
3:00 PM
SU-GG-T-212
A Complete Predictive Model for a Dedicated Ocular Proton Radiotherapy Beamline - I. Erkens, J. Daartz, E. Cascio, H. Kooy, M. Engelsman*
3:00 PM
SU-GG-T-213
Quality Audits of the Calibration for TG-51 Non-Compliant Beams by the Radiological Physics Center - D. Followill*, A. Molineu, J. Lowenstein, P. Alvarez, J. Aguirre, G. Ibbott
3:00 PM
SU-GG-T-214
On Technical Aspects of the Implementation of a New Respiratory Gating System with the Option of Three-Dimensional Tracking of a Surrogate’s Motion Via a Wall-Mounted Camera - J. Hrbacek*, W. Crijns, T. Depuydt, F. Van den Heuvel
3:00 PM
SU-GG-T-215
Routine Linear Accelerator Electron Beam QA Using EPIDs - Y. Wang*, B. Norrlinger, J. Smale, M. Islam
3:00 PM
SU-GG-T-216
Utility of 2D Diode Array for Electron Beam QA and Commissioning - E. Ghasroddashti*, S. Sawchuk
3:00 PM
SU-GG-T-217
Test of Laser Position, Isocenter Congruence Between KV Imager, Cone Beam CT and MV Beam with a Phantom - B. Yi*, G. Lasio, J. Zhang, C. Yu
3:00 PM
SU-GG-T-218
Measurements of X-Ray Spectra Emergent From Low-Energy Photon-Emitting Brachytherapy Sources - M. Mitch*, D. Jackson, S. Seltzer
3:00 PM
SU-GG-T-219
Monitoring and Quality Assurance of the Tomotherapy Hi-Art Using the Build-in MVCT Detector - V. Althof*, D. Kramer, H. Westendorp, M. Wispelweij, P. Haaren, A. Minken
3:00 PM
SU-GG-T-220
Dosimetric Error From Inter-Fraction Tumor Motion Variation in Phase Based Gating - R. Siochi*, H. Shukla
3:00 PM
SU-GG-T-221
Using PTW Seven29 Ion Chamber Array for HDR Source Acceptance and for HDR Brachytherapy Treatment Planning System QA - R. Bassalow*, D. Pavord, J. Gong
3:00 PM
SU-GG-T-222
How Accurate Is the Gold Seeds-Based IGRT in Determining True Prostate Shifts - Y. Song*, C. Obcemea, B. Mueller, C. Burman, B. Mychalczak
3:00 PM
SU-GG-T-223
Multiple Imaging Modality Isocentricity (MIMI) Test - A. Basavatia*, W. Tome
3:00 PM
SU-GG-T-224
Air Kerma Based Dosimetry Calibration for the Elekta Gamma Knife - S. Meltsner*, L. DeWerd
3:00 PM
SU-GG-T-225
Correction for Directional Response of a 2D Ion Chamber Array for Quality Assurance of Arc Radiotherapy and IMRT - B. Teo*, D. Hristov, E. Mok, G. Luxton
3:00 PM
SU-GG-T-226
ROC Analysis of Radiation Therapy Software Couch Interlock Performance to Improve Patient Safety - S. Hadley*, J. Balter, K. Lam
3:00 PM
SU-GG-T-227
A Systematic Analysis of the External Beam Radiotherapy Process for Patient Safety - L. Myers*, E. Ford, R. Gaudette, R. Zellars, D. Song, J. Wong, T. Deweese
3:00 PM
SU-GG-T-228
Data Analysis From a Database of Tomotherapy Delivery Quality Assurance Procedures - P. Hill*, L. Schubert, E. Soisson
3:00 PM
SU-GG-T-229
Non-Divergence of Large Fields with Changing Relative Depth and Effects of Wall Proximity in 3D Water Scanning - C. Fox*, G. Yan, T. Simon, W. Simon, J. Palta, C. Liu
3:00 PM
SU-GG-T-230
Method to Validate the Dosimetric Accuracy of Motion Tracking in Cyberknife Using a CIRS Dynamic Phantom - C. Munoz*, J. Hevezi, R. Waggener
3:00 PM
SU-GG-T-231
A Software Tool To Adapt The QUASAR Penta-Guide Phantom To Make An Additional Measurement Of Cone Beam CT Image Sharpness - J. Sykes*, D. Brettle, D. Magee, A. Morgan, D. Thwaites
3:00 PM
SU-GG-T-232
Investigation of Dosimetric Characteristics of Glass Dosimeter and Thermoluminescent Dosimeter for a Mailed Dosimetry - J. Lah*, G. Kim, D. Shin, T. Suh
3:00 PM
SU-GG-T-233
Development of Glass Dosimeter Postal Dose Intercomparison for High-Energy Photon Beam - J. Lah*, K. Cheong, J. Lee, J. Chung, D. Shin, T. Suh
3:00 PM
SU-GG-T-234
Time Resolved Output Measurements as a Linear Accelerator Quality Assurance Tool - M. West*, A. Movahed, A. Sen
3:00 PM
SU-GG-T-235
A 2D Ion Chamber Array Detector as a QA Device for Spot Scanning Proton Beams - B. Arjomandy*, M. Gillin, X. Zhu, N. Sahoo, G. Ciangaru, M. Bues, F. Poenisch, X. Ding
3:00 PM
SU-GG-T-236
Practical Suggestions for Annual Quality Assurance in CyberKnife - A. Prabhu*, D. Saini, B. Patadiya
3:00 PM
SU-GG-T-237
Quality Assurance of TPS, Based On ‘Code of Practice for Quality Control of Treatment Planning Systems in Radiation Therapy’ by SEFM (Spanish Medical Physics Association) - S. Lozares*, S. Pellejero, S. Miquelez, F. Mañeru, M. Martin, L. Bragado, P. Soto, A. Rubio
3:00 PM
SU-GG-T-238
Three Dimensional Characterization of the Radiation Isocenter Using a Single Phantom - H. Van Camp*
3:00 PM
SU-GG-T-239
Monte-Carlo “Virtual” Calibration of Counting Efficiency for Assessing Patient Internal Radioactivity Burden Using Organ-Adjustable RPI Adult Male Phantom - B. Zhang*, M. Mille, X. Xu
3:00 PM
SU-GG-T-240
New Method of An HPGe Detector Precise Efficiency Calibration with Experimental Measurements and Monte Carlo Simulations - Y. Zhai*, L. Trache, R. Tribble, Y. Liu, C. Shi, N. Papanikolaou, V. Iacob, J. Hardy, G. Tabacaru
3:00 PM
SU-GG-T-241
Determination of the Energy Correction Factor for TLD-100 in 6 and 10 MV Photon Beams Relative to 60Co - S. Junell*, L. DeWerd
3:00 PM
SU-GG-T-242
The Use of a Commercial Multi-Detector Device for Daily QA of Linear Accelerators - Z. Han*, J. Zhu, R. Drzymala, D. Rangaraj, S. Mutic, D. Low, H. Li
3:00 PM
SU-GG-T-243
A Quality Assurance Test Based On Gamma Analysis of Fluence Test Patterns for HDR Brachytherapy - N. Vivekanandan*, G. K, B. Kunjithapatham
3:00 PM
SU-GG-T-244
Commissioning of Flattening Filter Free Varian 600C Linear Accelerator - S. Stathakis*, A. Gutiérrez, P. Rassiah-Szegedi, P. Mavroidis, N. Papanikolaou
3:00 PM
SU-GG-T-245
Consolidated Image Quality QA for Diagnostic CT and Radiotherapy Cone Beam CT - A. Doemer*, E. Gingold, V. Misic, T. Podder, Y. Yu, Y. Xiao
3:00 PM
SU-GG-T-246
NIST Water Calorimeter Update: Measured Dose Rate as a Function of Exposure Time - H. Chen-Mayer*, R. Tosh
3:00 PM
SU-GG-T-247
An Investigation On the Cross-Calibration Value of the Plane-Parallel Chamber Against the Cylindrical Chamber for Different High-Energy Electron Beams with TG-51 Protocol - M. Yu*, D. Gladstone
3:00 PM
SU-GG-T-248
Determination of Proton Stopping Power Using MV CT, KV CT & Proton Radiographic Images - J. Kwak*, S. Lee, s. park, J. Shin, D. Shin, M. Yoon, S. Park, Y. Lim, D. Kim, J. Kim, K. Cho
3:00 PM
SU-GG-T-249
Analysis of Scatter Dose On a Contralateral Breast as a Function of Surface Dose and Treatment Depth - S. Rodriguez*, C. Esquivel, N. Papanikolaou
3:00 PM
SU-GG-T-250
Effect of Titanium Implants On Therapeutic Proton Dose Delivered to Patients - G. Ciangaru*, N. Sahoo, B. Arjomandy, X. Zhu, M. Gillin
3:00 PM
SU-GG-T-251
Effect of Range Compensators On Entrance Doses in Proton Therapy - Z. Zhao*, Z. Li, W. Hsi, R. Slopsema
3:00 PM
SU-GG-T-252
An Efficient Technique for Commissioning a Tissue Heterogeneity Correction Algorithm for Treatment Planning for Lung Cancer - W. Hall*, T. Liu, R. Stern, J. Perks, C. Yang, M. Mathew, J. Purdy
3:00 PM
SU-GG-T-253
Interface Dosimetry in Heterogeneous Water Phantom Using EBT Film - h. amro*, P. Roberson, C. Smith, E. Acosta, J. Moran
3:00 PM
SU-GG-T-254
Evaluation of Radiochromic Film Within a Heterogeneous Phantom - T. Simon*, J. Kozelka, C. Fox, W. Simon, J. Li, J. Palta, C. Liu
3:00 PM
SU-GG-T-255
Experimental Verification of Lung Tumor Dose with Radiochromic Film - J. Zhang*, S. Yoo, S. Kim, F. Yin
3:00 PM
SU-GG-T-256
Measurement and Evaluation of Inhomogeneity Corrections and Monitor Unit Verification for Treatment Planning - R. Saxena*, P. Higgins
3:00 PM
SU-GG-T-257
Modeling of Beam Profiles Based On Three Gaussian Functions in Lung Stereotactic Body Radiotherapy for Acceptance Test of Radiotherapy Planning System - S. Anai*, H. Arimura, F. Araki, M. Tachibana, Y. Shioyama, K. Nakamura, Y. Onizuka, H. Terashima
3:00 PM
SU-GG-T-258
A Fast and Simple Method for Improving Accuracy of Helmet Output Factor Measurements for Gamma Knife Perfexion Unit - L. Ma*, H. Nordstrom, P. Kjall, J. Novotny, L. Verhey
3:00 PM
SU-GG-T-259
Dose Discrepancies in the Buildup Region and Their Impact On IMRT Field Dosimetry - S. Hsu*, J. Moran, Y. Chen, R. Kulasekere, P. Roberson
3:00 PM
SU-GG-T-260
An Experimental and Monte Carlo Study of Output Factors for Small Radiosurgery Beams - Y. Yang*, J. Kim, F. LI, X. Li, T. Li, N. Yue, D. Heron, M. Huq
3:00 PM
SU-GG-T-261
Monte Carlo Simulation of Small Electron Fields for Small Animal Irradiation - C. Lee*, T. Chao, C. Tung
3:00 PM
SU-GG-T-262
Total Scatter Factors of Small 6 MV Photon Beams Estimated by Simulating the Response of Small Detectors - P. Francescon, S. Cora, C. Cavedon*
3:00 PM
SU-GG-T-263
IMRT Beamlet Match-Line Dose Heterogeneities Associated with Varian 120 MLCs - M. Felty*, J. Ashburn, A. Meigooni
3:00 PM
SU-GG-T-264
Correction Factor in Output Measurement for Small Fields - S. Srivastava*, I. Das, C. Cheng
3:00 PM
SU-GG-T-265
High Precision GafChromic Based Clinical Dosimetry Using Standard Flat Bed Scanner - H. Chung*, B. Lynch, S. Samant
3:00 PM
SU-GG-T-266
Implementation of Total Skin Electron Irradiation (TSEI) Using High Dose Rate Mode at Siriraj Hospital - P. LIAMMOOKDA*, P. LIAMMOOKDA
3:00 PM
SU-GG-T-267
Evaluation of the Accuracy of TomoTherapy Dose Calculations for Shallow-Depth PTVs - J. Strydhorst*, B. Clark, M. MacPherson
3:00 PM
SU-GG-T-268
Use of Normoxic Polymer Gel On Dose Verification of 3.1-, 4-, 6-Mm Cones for Stereotactic Radiosurgery - T. Chao*, J. Wu, C. Chu, C. Lee, S. Wey, H. Liu, C. Tung
3:00 PM
SU-GG-T-269
Experimental Determination of Detector Volume Effect Using a Gaussian Function On Output Factor Measurements in the 5 Mm Small Field - J. Lah*, S. Yoon, T. Suh
3:00 PM
SU-GG-T-270
Evaluation of a Novel 3-D Polymer Gel Dosimetry System for Proton Radiotherapy - O. Lopatiuk-Tirpak*, K. Langen, S. Meeks, P. Kupelian, M. Maryanski, W. Hsi, J. Palta, O. Zeidan
3:00 PM
SU-GG-T-271
Design and Study of a Novel Dosimeter Based On Carbon Fiber Material - J. Ma*, J. Yeow, J. Chow, R. Barnett
3:00 PM
SU-GG-T-272
Energy and Irradiation Modality Independence of Calibration Coefficients for Water Equivalent Plastic Scintillation Detectors - M. Guillot*, F. Lacroix, F. Thériault, L. Beaulieu, L. Gingras
3:00 PM
SU-GG-T-273
Suitability of Synthetic Diamond Films for Radiotherapy Dosimetry - G. Betzel*, S. Lansley, F. Baluti, L. Reinisch, J. Lydon
3:00 PM
SU-GG-T-274
Dosimetric Characteristics of a Commercially Available Optical Stimulated Luminescence Dosimeter (OSLD) - S. Lim*, T. LoSasso
3:00 PM
SU-GG-T-275
Investigation Into the Use of a MOSFET Dosimeter as An Implantable Fiducial Marker - S. Kry*, M. Price, Z. Wang, F. Mourtada, M. Salehpour
3:00 PM
SU-GG-T-276
Comparison of the Epson Perfection V700 Photo Flatbed and the Vidar VXR-16 Dosimetry PRO Advantage™ Film Scanners for Use with Radiochromic Film - J. Matney*, B. Parker, D. Neck, I. Rosen
3:00 PM
SU-GG-T-277
Characterization of the OneDosePlus™ MOSFET Detector and Assessment of Its Suitability as An in Vivo Dosimeter - C. Ainsley*, L. FU, M. Ingram, J. Novak, A. Kassaee, S. Both
3:00 PM
SU-GG-T-278
Dosimetric Characteristics of An Amorphous Silicon Electronic Portal Imaging Device for Dynamic Intensity Modulated Radiation Therapy - K. KRONGYUTH, K. KRONGYUTH*
3:00 PM
SU-GG-T-279
Evaluation of a Novel 4D In-Vivo Dosimeter - A. Cherpak*, A. Hallil, W. Ding, J. Cygler
3:00 PM
SU-GG-T-280
Dose Characteristics and Applications of Optically Stimulated Luminescent Dosimeters in Proton, Electron and Photon Radiotherapy - C. Reft*
3:00 PM
SU-GG-T-281
Quality Control in the Fabrication of Scintillating Fiber Probes for Radiotherapy Applications - J. Jones*, T. Briere, L. Archambault, S. Beddar
3:00 PM
SU-GG-T-282
Investigation of Optical Artifacts in a Complex Light-Scattering Gel Phantom for Optical CT Polymer Gel Dosimetry - S. Bosi*, P. Naseri, C. Baldock
3:00 PM
SU-GG-T-283
Dosimetry for Hybrid 1.5 T MRI Radiotherapy System: Impact of the Magnetic Field On a NE2571 Ionisation Chamber - A. Raaijmakers*, B. Raaymakers, I. van Dijk, J. Kok, J. Lagendijk
3:00 PM
SU-GG-T-284
Modelling the Effect of Optical Pathlength On Light Scattering Artefacts in Optical CT for Polymer Gel Dosimetry - S. Bosi*, S. Brown, S. Sarabipour, Y. De Deene, C. Baldock
3:00 PM
SU-GG-T-285
Experimental Techniques for the Determination of Relative Radiation Output From Small Stereotactic Radiosurgery Photon Beams - Z. Chen*, J. Pampena, J. Deng, Y. Fan, F. Guo, R. Nath
3:00 PM
SU-GG-T-286
Performance of An Improved Optical Computed Tomography Polymer Gel Dosimeter System for 3-D Dose Verification of Static and Dynamic Phantom Deliveries - O. Lopatiuk-Tirpak*, K. Langen, S. Meeks, P. Kupelian, M. Maryanski, O. Zeidan
3:00 PM
SU-GG-T-287
Deformable Lung Phantom for Verification of 4D Dose Calculations - Y. Vinogradskiy*, G. Starkschall, P. Balter, D. Followill
3:00 PM
SU-GG-T-288
Modeling the Increased Scatter From Tertiary Collimators - P. Alaei*, P. Higgins
3:00 PM
SU-GG-T-289
Out-Of-Field Dose Equivalents Delivered by Passively Scattered Therapeutic Proton Beams for Clinically Relevant Field Configurations - A. Wroe*, B. Clasie, H. Kooy, J. Flanz, R. Schulte, A. Rosenfeld
3:00 PM
SU-GG-T-290
A Fast Optical CT Scanner for Gel Dosimetry - Y. Xu*, C. Wuu, M. Maryanski
3:00 PM
SU-GG-T-291
Comparison Studies of Thermistor-Based and Ultrasonic Water Calorimeters - R. Tosh*, H. Chen-Mayer
3:00 PM
SU-GG-T-292
The Response of LiF:Mg,Ti Thermoluminescent Dosimeters to Low-Energy Photons - B. Rasmussen*, S. Davis, J. Micka, L. DeWerd
3:00 PM
SU-GG-T-293
The Use of Field Centre Profiles in the Matching of Linear Accelerator Photon Beams - E. Ramalingam*, E. Hayes, F. Bradley
3:00 PM
SU-GG-T-294
A New Cone-Beam CT Daily QA Phantom for Stereotactic Radiosurgery - Z. Zhao, S. Duvvuri, S. Flampouri, D. Horne, S. Huh*
3:00 PM
SU-GG-T-295
Determination of the Dose Equivalent Near Proton Pencil Beams - B. Clasie, A. Wroe*, H. Kooy, H. Paganetti, J. Flanz, R. Schulte, A. Rosenfeld
3:00 PM
SU-GG-T-296
A Method for Removing An Artifact in Time-Dependent Dose Rate Data Obtained with An Ionization Chamber - Y. Watanabe*
3:00 PM
SU-GG-T-297
Measurements of Proton Dose Distributions Using a Thin Oxide MOSFET Detector - R. Kohno*, E. Hirano, S. Kameoka, K. Hotta, T. Nishio, T. Miyagishi, A. Hallil, M. Kawashima, T. Ogino
3:00 PM
SU-GG-T-298
Dose Verification of Mammosite Treatments with MOSFET Dosimeters - A. Sabbas*, L. Nedialkova, S. Trichter, F. Kulidzhanov, M. Hayes, B. Parashar, P. Patel, D. Nori
3:00 PM
SU-GG-T-299
An Evaluation of Solid Phantoms for the Dosimetry of Low Energy Photon Beams - R. Hill*, Z. Kuncic, C. Baldock
3:00 PM
SU-GG-T-300
Depth Dose and Profile Characteristics in the Superficial Buildup Region Near Air Interface for Megavoltage Photon Beams Using Radiochromic EBT Film Stacks - S. Chiu-Tsao*, M. Chan
3:00 PM
SU-GG-T-301
Evaluation of An Ion Chamber Array for Volume Modulated Radiation Therapy and Helical Tomotherapy - M. Neeley*, C. Ramsey, Y. Charara
3:00 PM
SU-GG-T-302
Reduced Energy Dependence Artifact in CR Plate Dosimetry Using Pencil Beam Response Correction and Thoraeus Filters - A. Kirov*, J. Ilany, C. Obcemea, M. Donowsky, T. LoSasso
3:00 PM
SU-GG-T-303
Evaluation of An Implantable MOSFET Dosimeter for Use with Hypo-Fractionated External Beam Treatments - G. Beyer*, S. Kry, C. Rini, E. Baum, G. Mann, E. Espenhahn
3:00 PM
SU-GG-T-304
Comparison of Three Commercial MOSFET Dosimeters for Use in Total Body Irradiation - M. Ingram*, J. Novak, C. Ainsley, L. FU, X. Zhou, S. Both, A. Kassaee
3:00 PM
SU-GG-T-305
Feasibility of Using a Programmable Respiratory Motion Phantom for QA and Assessment of Dosimetric Implications of Breathing Motion During Radiation Therapy - J. Publicover*, A. Vandermeer, B. Norrlinger, H. Alasti
3:00 PM
SU-GG-T-306
Evaluation of Two-Dimensional Diode Array Dosimeter for An Application of Exit Dosimetry - H. Chung*, J. Li, C. Liu, S. Samant
3:00 PM
SU-GG-T-307
Characterization of Thermoluminescent Dosimeter Reader Precision and Artifacts - L. Bartol*, L. DeWerd
3:00 PM
SU-GG-T-308
Polymer Cross-Linking and Sensitivity Enhancement in Normoxic Polymer Gels Used for Three-Dimensional Dosimetry - R. Martin*, J. BenComo, M. Heard, M. Martin, K. Kaluarachchi, N. Wells, R. Sadagopan
3:00 PM
SU-GG-T-309
Presenting TomoPen: The First Monte Carlo Treatment Planning for Helical Tomotherapy - E. Sterpin*, G. Olivera, S. Vynckier
3:00 PM
SU-GG-T-310
Detour Factors for Low-Energy Electrons in Water - K. Wiklund*, B. Lind
3:00 PM
SU-GG-T-311
A Distributed-Computing Platform for Monte Carlo Dose Calculations and Beam-Weight Optimization - M. Bakhtiari*, M. Jones, H. Malhotra, D. Nazareth
3:00 PM
SU-GG-T-312
Monte Carlo Investigation of Collimator Scatter of Proton-Therapy Beams Produced Using the Passive Scattering Method - U. Titt*, Y. Zheng, O. Vassiliev, W. Newhauser
3:00 PM
SU-GG-T-313
The Contribution of Nuclear Products On the Lateral Profile of the Pencil Scanning Proton Beams From the MD Anderson Proton Therapy Center Houston Nozzle: The Halo Effect - G. Sawakuchi*, U. Titt, M. Bues, G. Ciangaru, R. Mohan
3:00 PM
SU-GG-T-314
Monte Carlo Investigation of the New Cyberknife with a High Dose Rate - J. Li*, J. Fan, C. Ma
3:00 PM
SU-GG-T-315
McGill Monte Carlo Research Platform (MMCTP) for Dose Comparison Studies - A. Alexander*, F. DeBlois, J. Seuntjens
3:00 PM
SU-GG-T-316
Skin Dose Determination for Photon Beam Breast IMRT Patients Using Monte Carlo Simulations and TLD Measurements - J. Yang*, S. Tong, J. Li
3:00 PM
SU-GG-T-317
Impact of Tumor Motion and Size in the Irradiation of Moving Tumors in Step-And-Shoot IMRT: A NCAT Based 4D Monte Carlo Simulation Study - R. McGurk*, M. Riboldi, J. Seco, H. Paganetti, J. Wolfgang, G. Chen
3:00 PM
SU-GG-T-318
Validation of PENELOPE Code for X-Ray Photons Transport with Energy Between 20 and 150 KeV in Thin Geometry - T. Pianoschi, P. Nicolucci*, E. Góes, C. Pelá
3:00 PM
SU-GG-T-319
Monte Carlo Study of Distal Edge Degradation in Proton Therapy Due to Heterogeneities. Proof of Principle with a Case Study - U. Titt*, X. Zhang, Y. Li, D. Mirkovic, G. Sawakuchi, R. Mohan
3:00 PM
SU-GG-T-320
Monte Carlo Generation of Phase Spaces for Dose Computation in TomoTherapy - M. Moreau*, Y. Chen, B. Cravens, C. Mauer, E. Sterpin, F. Salvat, K. Ruchala, G. Olivera
3:00 PM
SU-GG-T-321
Validation Study of the GEANT 4 Monte-Carlo Simulation of the Proton Dose Distribution From Passively Scattered Proton Beam Nozzles at the Proton Therapy Center at Houston - X. Ding*, N. Sahoo, X. Zhu, J. Yang, B. Arjomandy, M. Lii, U. Titt, R. Mohan, A. Smith, M. Gillin
3:00 PM
SU-GG-T-322
Determination of the Optimum Statistical Uncertainty and Voxel Size to Perform Monte Carlo Based Dose Calculation in the Context of Radiotherapy - A. Isambert*, S. Morrow, F. Husson, F. Salvat, D. Lefkopoulos
3:00 PM
SU-GG-T-323
Angular Distribution of Neutron Fluence and Its Effect On Shielding for a Passively-Scattered Proton Therapy Unit - Y. Zheng*, W. Newhauser, E. Klein, D. Low
3:00 PM
SU-GG-T-324
Characteristics and Dosimetric Parameters of Small Radiosurgery Photon Beams - G. Ding*, C. Coffey
3:00 PM
SU-GG-T-325
Improved Organ Sparing by Electronic Brachytherapy: A Monte Carlo Study - J. Dingley*, V. Taranenko
3:00 PM
SU-GG-T-326
A Fast Monte Carlo Code for Proton Transport in Radiation Therapy Based On Pre-Calculated Tracks From MCNPX - K. Jabbari*, J. Seuntjens
3:00 PM
SU-GG-T-327
Simulation of Neutron Equivalent Doses in Proton Therapy as a Function of Patient''s Age for Different Tumor Sites - B. Athar*, C. Zacharatou Jarlskog, H. Paganetti
3:00 PM
SU-GG-T-328
Human Anatomy-Based Monte Carlo Dose Calculation for External Protons - Y. Liu*, C. Shi, X. Xu, N. Papanikolaou
3:00 PM
SU-GG-T-329
Investigation of Alpha Particle Beam Therapy as a Lower Neutron Dose Alternative to Proton Beams - A. Hecht*, M. Zhang, A. Perez-Andujar, T. Mackie, P. DeLuca
3:00 PM
SU-GG-T-330
A Feasibility Study of a Monte Carlo Based Dose Verification for a Therapeutic Proton Beam Delivery System - J. Shin*, J. Kwak, D. Kim, D. Shin, M. Yoon, s. park, Y. Lim, J. Kim, S. Park, K. Cho, S. Lee
3:00 PM
SU-GG-T-331
A New Monte Carlo Code for Gamma Knife Simulations - J. Yang*, S. Tong, J. Fan
3:00 PM
SU-GG-T-332
Monte Carlo Collimator Transport Methods for Photon Treatment Planning - M. Fix*, D. Schmidhalter, D. Frei, W. Volken, P. Manser
3:00 PM
SU-GG-T-333
Neutron Yield and Angular Distribution From the 250 MeV Proton Interactions in Water: A Geant4 Monte Carlo Study - Y. Chen*, S. Ahmad
3:00 PM
SU-GG-T-334
Improvement of Off-Axis Energy Sampling in XVMC Beam Model for Varian 2100C/D - J. Kim*, M. Huq
3:00 PM
SU-GG-T-335
Construction of a Surface-Based 3D Human Model and Monte Carlo Dose Calculations - C. Kim*, J. Jeong, Y. Yeom, S. Cho, K. Cho
3:00 PM
SU-GG-T-336
A Track Repeating Algorithm for Fast Proton Dose Calculations - W. Newhauser, P. Yepes*, S. Randeniya, P. Taddei
3:00 PM
SU-GG-T-337
A Method of Effective Attenuation That Preserves Detailed MLC Characteristics and Replicates Spectral Effects of Deliberate Transport - M. Speiser*, J. DeMarco
3:00 PM
SU-GG-T-338
Recent Improvements in the Geant4 Monte Carlo Simulation Toolkit for Medical Physics Applications - J. Perl*, B. Faddegon, H. Paganetti
3:00 PM
SU-GG-T-339
Monte Carlo Calculation to Determine Tandem Ionization Chamber Response to X-Rays Beam Using PENELOPE - T. Pianoschi*, E. Góes, P. Nicolucci, A. Costa, C. Pelá
3:00 PM
SU-GG-T-340
A Comparison of Geant4 and DPM for 4D Monte Carlo of Lung IMRT - C. Hancox*, J. Seco, H. Paganetti
3:00 PM
SU-GG-T-341
Energy Distributions of Particles Generated for Proton Interactions in Water: A Simulation with GEANT4 Monte Carlo Code - Y. Chen*, S. Ahmad
3:00 PM
SU-GG-T-342
Dosimetric Characteristic of 137-Cs Sources Used in Afterloading Selectron System by Monte Carlo Method - M. Tavakoli Hosseinabad*, F. Hoseinpour
3:00 PM
SU-GG-T-343
Comparison of MCNP and GEANT4 Monte Carlo Codes On Photo-Neutron Generation in High Energy X-Ray Beams - H. Jiang*
3:00 PM
SU-GG-T-344
Modifications of the MCNP Code to Facilitate Monte Carlo Dose Calculations with a CT Geometry - H. Jiang*
3:00 PM
SU-GG-T-345
Verification of a Monte Carlo-Based Source Model for a Varian 10 MV Photon Beam - S. Davidson*, J. Cui, J. Deasy, G. Ibbott, D. Followill
3:00 PM
SU-GG-T-346
Accurate Simulation for Therapeutic Protons Range-Energy and Range-Density Tables - B. Guo, Y. Liu*, C. Cheng, S. Ahmad, N. Papanikolaou
3:00 PM
SU-GG-T-347
Methods to Calculate Organ Doses Due to Scattered Radiation From External Beam Radiation Treatment Using Various Patient Phantoms and Monte Carlo Simulations - B. Bednarz*, X. Xu
3:00 PM
SU-GG-T-348
Monte Carlo Calculations of Dose Distribution in NSCLC Patients Planned for Stereotactic Body Radiation Therapy - V. Moiseenko*, I. Popescu, M. Liu, S. Kristensen, B. Gill, T. Teke, A. Bergman
3:00 PM
SU-GG-T-349
Large-Field Sensitivity Analysis of a Non-Cylindrically Symmetric Monte Carlo Beam Model of a Varian Electron Accelerator - E. Schreiber*, D. Sawkey, B. Faddegon
3:00 PM
SU-GG-T-350
X-Ray Beam Model Benchmarks - D. Sawkey*, E. Schreiber, B. Faddegon
3:00 PM
SU-GG-T-351
Using Dose Mass Histograms (DMH) for the Evaluation of Head and Neck IMRT Plans Calculated by Monte Carlo - G. Mora*, J. Li, J. Fan, A. Jesus, C. Ma
3:00 PM
SU-GG-T-352
Dosimetric Validation of a Commercial Monte-Carlo Based IMRT Planning - D. Grofsmid*, M. Dirkx, E. Woudstra, H. Marijnissen, B. Heijmen
3:00 PM
SU-GG-T-353
Validation of Calculation for Electrons and Feasibility Study of Penumbra Generator Utilized Electron Monte Carlo Algorithm - H. Kuo*, R. Yaparpalvi, L. Hong, D. Mah, J. Lee
3:00 PM
SU-GG-T-354
Monte Carlo Simulation On the Percentage Depth Dose Ratio for the Surface Dosimetry Using Tangential Photon Beams - J. Chow*, G. Grigorov
3:00 PM
SU-GG-T-355
External Electron Beam Comparison of Monte Carlo Codes (BEAMnrc, MCNP4C) in Homogeneous Phantom and Interfaces - M. Owrangi*, M. Masudiefar, H. Nedaie, Z. Anjomani, M. Mosleh-Shirazi
3:00 PM
SU-GG-T-356
Benchmark of Geant4 and MCNPX for Proton Radiation Therapy (E<70 MeV): Total Dose and Secondary Particle Production - M. Zhang*, A. Perez-Andujar, A. Hecht, T. Mackie
3:00 PM
SU-GG-T-357
Geant4 Benchmarking for IMRT Dose Calculations - C. Hancox*, J. Seco, H. Paganetti
3:00 PM
SU-GG-T-358
Monte Carlo Characterization of a Medical Linear Accelerator for Small Animal Irradiation - J. Larraga-Gutierrez*, E. Galvan, S. Moreno-Jímenez, M. Celis, A. Díaz-Ruíz , C. Ríos
3:00 PM
SU-GG-T-359
Investigation of Optimal Margins for Proton Therapy of Lung Cancer - A. Guemnie Tafo*, J. Li, J. Fan, E. Fourkal, C. Ma
3:00 PM
SU-GG-T-360
Monte Carlo-Based Pre-Installation Proton Therapy Shielding Verification for a Single-Room Proton Therapy Facility - J. Siebers*
3:00 PM
SU-GG-T-361
Validation of Dose Calculations with PENFAST (a Fast Monte Carlo Code for TPS in Radiotherapy) Using a Beam Energy Spectrum Reconstructed by a Least Squares Method - B. HABIB*, F. TOLA, J. BORDY, B. POUMAREDE
3:00 PM
SU-GG-T-362
Intercomparision of Monte Carlo Radiation Transport Codes MCNPX, GEANT4 and FLUKA for Simulating Proton Radiation Therapy of the Eye - S. Randeniya*, P. Yepes, W. Newhauser
3:00 PM
SU-GG-T-363
Large Field Intraoperative Radiation Therapy (IORT) for Soft Tissue and Retroperitoneal Sarcomas - S. Krechetov*
3:00 PM
SU-GG-T-364
Development and Application of a Structural Quality Indicator for Radiotherapy Clinical Equipment - M. Goharian*, P. Dunscombe, M. Gackle, W. Mackillop
3:00 PM
SU-GG-T-365
A Comparison of Proton Modulation with Tumor Location and Energy - A. Tasson*
3:00 PM
SU-GG-T-366
Hyperthermia Treatment for a Patient with Two Shank Sarcomas Treated by a Fast Pre-Treatment Optimization Method - K. Cheng, Z. Li, P. Stauffer, W. Joines, M. Dewhirst, S. Das*
3:00 PM
SU-GG-T-367
Fast Hyperthermia Temperature Optimization for Pelvic Carcinoma Patient Treated in Sigma-Eye Applicator - K. Cheng, V. Stakhursky, O. Craciunescu, P. Stauffer, M. Dewhirst, S. Das*
3:00 PM
SU-GG-T-368
Long Term Stability of Thermal Type Power Meter Head Intercomparison - A. Dimofte*, T. Zhu
3:00 PM
SU-GG-T-369
Development and Application of a Robust Toolkit, Tomo-XML-DOM, for Helical Tomotherapy System - T. Roland*, C. Shi, N. Papanikolaou
3:00 PM
SU-GG-T-370
Role of the Laser Pulse Duration On Maximum Proton Energy for Future Accelerators - A. Guemnie Tafo*, A. Flacco, F. Ewald, V. Malka, C. Ma
3:00 PM
SU-GG-T-371
Monte Carlo Neutron Shielding Evaluation of Treatment Vaults Built to NCRP 49 Or NCRP 151 Recommendations - T. Carroll*, E. Parsai,, D. Shvydka
3:00 PM
SU-GG-T-372
Design of a Leakage-Reducing Electron Applicator Retrofit - D. Sawkey*, B. Faddegon
3:00 PM
SU-GG-T-373
Real-Time Tracking of Inter Marker Distances to Assess Maker Stability, Organ Deformation in Prostate Cancer - A. Mahadevan*, M. Khan, Q. Chen
3:00 PM
SU-GG-T-374
Update On Digital Data Integrity Quality Assurance for Multi-Institutional Advanced Technology Clinical Trials - W. Straube*, W. Bosch, R. Haynes, A. Eccher, J. Matthews, J. Purdy
3:00 PM
SU-GG-T-375
A Continuous Patient Movement Monitoring Device for Radiotherapy Treatment - S. Senthilkumar*, V. Ramakrishnan
3:00 PM
SU-GG-T-376
Feasibility of MRI Guided Proton Therapy: Magnetic Field Dose Effects - B. Raaymakers*, A. Raaijmakers, J. Lagendijk
3:00 PM
SU-GG-T-377
Evaluation of Cone Beam CT in Prostate IMRT - S. Jang*, A. Hurley, G. Cardarelli, T. DiPetrillo, A. Corrao, E. Sternick, D. Wazer
3:00 PM
SU-GG-T-378
Development of Error Analysis Program for Phase-Based Respiratory Gating Radiation Therapy - J. Song*, M. Yoon, T. Nam, S. Ahn, W. Chung, B. Nah
3:00 PM
SU-GG-T-379
Dose Volume Histogram (DVH) Analysis Software for Radiation Therapy Research - S. Jang, A. Pyakuryal*, K. Myint, B. Mittal, M. Gopalakrishnan, B. Curran, E. Sternick
3:00 PM
SU-GG-T-380
Design and Shielding Considerations for the World’s First Compact Synchrocyclotron Proton Therapy Unit - E. Klein*, D. Low, Y. Zheng
3:00 PM
SU-GG-T-382
Modeling of a Commercial CdTe Photodiode Detector Using the MCNP Code - F. Liu*, S. Cho
3:00 PM
SU-GG-T-383
Maximum Dose Angle for Oblique Incidence On Primary Beam Protective Barriers in the Design of Medical Radiation Therapy Facilities - D. Fondevila*, S. Arbiser, R. Sansogne, M. Brunetto, B. Dosoretz
3:00 PM
SU-GG-T-384
Overcoming Challenges in the Implementation of Oncology Information System - C. Saw*, M. Ferenci, C. Kruse, M. Singer, H. Wagner
3:00 PM
SU-GG-T-385
QuASA2R - a Digital Data Quality Assurance Submission, Archive, Analysis, and Review System for Advanced Technology Clinical Trials in Radiation Therapy - W. Bosch*, J. Matthews, J. Deasy, J. Michalski, W. Straube, J. Purdy
3:00 PM
SU-GG-T-388
Design and Implementation of a Computing Framework for An Image Guided Adaptive Radiotherapy Research Program - W. Sleeman, N. Dogan, J. Siebers, M. Murphy, J. Williamson, M. Fatyga*
3:00 PM
SU-GG-T-389
Clinical Implementation of Varian OBI and CBCT Using IMPAC Mosaiq R&V System - G. Cardarelli*, J. Hiatt, A. Corrao, J. Garcia-Cobian, Z. Zheng, S. Jang, B. Curran, E. Sternick, T. DiPetrillo, D. Wazer
3:00 PM
SU-GG-T-390
The Development and Implementation of the RadioTherapy Information Management System (RTIMS) - Q. Wu*, G. Li
3:00 PM
SU-GG-T-391
Collection and Development of Relational Organization of Radiation Treatment Plan Data From a Commercial Radiation Treatment Planning System - M. Kantor*, P. Balter, B. Choi, J. Baker, G. Starkschall
3:00 PM
SU-GG-T-392
Utilization of Data Envelopment Analysis (DEA) to Compare Prostate Treatment Options - R. Ramer*, A. Holder, N. Papanikolaou
3:00 PM
SU-GG-T-393
Improvements to the Computational Environment for Radiotherapy Research Open-Source Software System - Y. Wu*, D. Khullar, A. Apte, J. Alaly, J. Matthews, W. Bosch, K. Ulin, J. Deasy
3:00 PM
SU-GG-T-394
Efficient Mass Deployment of ROIS Client Computers - D. Kim*
3:00 PM
SU-GG-T-395
Creating and Implementing a Multi-Institutional Stereotactic Radiosurgery Patient Registry - R. Tarver*, J. Borchers, B. Medbery, M. D'Souza, E. Spain, C. Hunt
3:00 PM
SU-GG-T-396
Automatic Analysis and Presentation of DVH Data Based On Custom Constraints - a Treatment Planning Report Card - M. Kantor*, B. Choi, P. Balter, G. Starkschall
3:00 PM
SU-GG-T-397
Dose-Response Parameters for Thoracic and Cervical Myelopathy After External Radiotherapy - M. Gorka*, A. Brahme, P. Mavroidis, B. Lind
3:00 PM
SU-GG-T-398
Cellular Radiosensitivity of Laser Accelerated Protons: A Feasibility Study - J. Fan*, E. Fourkal, A. Guemnie Tafo, I. Veltchev, J. Li, Q. Xu, T. Lin, L. Wang, K. Paskalev, L. Jin, C. Ma
3:00 PM
SU-GG-T-399
Automated Colony Counting Using Color and Image Processing Techniques - M. Hoggarth*, M. Stinauer, M. Altman, J. Roeske
3:00 PM
SU-GG-T-400
Dosimetric Characterization and Biological Validation of a Phantom for Three Dimensional IMRT-Based In Vitro Experiments - M. Altman*, B. Vesper, B. Smith, M. Stinauer, C. Pelizzari, B. Aydogan, C. Reft, J. Radosevich, S. Chmura, J. Roeske
3:00 PM
SU-GG-T-401
Cell Survival Following X-Ray Activated Auger Electron Radiotherapy - J. Dugas*, M. Varnes, E. Sajo, C. Welch, K. Hogstrom
3:00 PM
SU-GG-T-402
Model to Account for Organ Deformation During Respiration Using the Power Law Dependence of Biological Outcome On Volume (mass) - J. antony*, G. Luxton, L. Xing
3:00 PM
SU-GG-T-404
The Impact of Breathing-Motion and Tumor Regression On Dose-Volume Metrics Used for Outcome Analyses - E. Huang*, A. Hope, P. Lindsay, J. Bradley, J. Deasy
3:00 PM
SU-GG-T-405
Dose Response Analysis of Radiation-Induced Optic Neuropathy (RION) Single-Institution Data Using the Lyman NTCP Model - W. Song*, N. Bhandare, V. Moiseenko
3:00 PM
SU-GG-T-406
Improving Lung Radiation-Pneumonitis Prediction by Combining Different Models - S. Das*, S. Chen, S. Zhou, F. Yin, J. Deasy, l. marks
3:00 PM
SU-GG-T-408
Computational Analysis of the Dose and Dose-Rate Dependence of DNA Double-Strand Break Repairs - R. Abolfath*, R. Timmerman, T. Solberg, D. Saha, M. Story, P. Derose, H. Hamidian
3:00 PM
SU-GG-T-409
Equivalent Uniform Dose Calculation for I-131 Tositumomab Therapy Including the Cold Protein Effect - P. Roberson*, h. amro, S. Wilderman, Y. Dewaraja
3:00 PM
SU-GG-T-410
Detailed Radiobiological Analysis Does Not Distinguish Between Biochemical Failures in a Case Control Study of Permanent Prostate Brachytherapy Patients - W. Butler*, R. Stewart, G. Merrick
3:00 PM
SU-GG-T-411
Impact of Respiratory Gating Using 4DCT On TCP, NTCP, TI, and UTCP in Patients with Thoracic Malignancies - S. Ahmad, T. Perkins*, M. Vlachaki
3:00 PM
SU-GG-T-412
Modeling the Dose Rate Effect On High Dose Rate (HDR) Accelerated Partial Breast Irradiation (APBI) Treatment - A. Bondal*, I. Barani, P. Lin, L. Cuttino, D. Arthur, D. Todor
3:00 PM
SU-GG-T-413
Combined Biological Effective Dose Based Treatment Planning for Low Dose Rate Prostate Brachytherapy and IMRT - Y. Lo*, R. Sheu, J. Cesaretti, R. Stock
3:00 PM
SU-GG-T-414
Equivalent Uniform Dose Optimization: A Step Closer to Dose-Guided and Adaptive Radiation Therapy? - D. Mihailidis*, B. Plants, L. Farinash, M. Harmon
3:00 PM
SU-GG-T-415
Improved Critical Structure Sparing with Biologically-Based Treatment Planning Systems - S. Qi*, V. Semenenko, K. Kainz, X. Li
3:00 PM
SU-GG-T-416
A Quantitative Evaluation of the Effect of CT Scanning Parameters On CT Number to Density Calibration and Dose Calculations - S. Refaei*, M. Lamba, H. Elson
3:00 PM
SU-GG-T-417
Interpretation of Dosimetric Results in Terms of Expected Treatment Outcome When Optimizing Treatment Plans Using Different Methods of Regularizing Dose Inhomogeneity - G. Komisopoulos, P. Mavroidis, N. Papanikolaou*, B. Lind
3:00 PM
SU-GG-T-418
Biologically-Based Optimization of Volumetric Modulated Arc Therapy (VMAT) for Prostate Cancer Including Boost for Hypoxia and Urethra Sparing - L. Yin*, V. Moiseenko, K. Otto, J. North, M. Liu
3:00 PM
SU-GG-T-419
IMRT Prostate: Cumulative Rectal Dose Incorporating Rectal Motion - R. Jiang*, R. Barnett, J. Chow
3:00 PM
SU-GG-T-420
Radiobiological-Based Comparisons Among Conventional Radiotherapy and IMRT Delivery Techniques for Prostate Treatment Planning - F. Su*, P. Mavroidis, G. Swanson, C. Buckey, S. Stathakis, N. Papanikolaou
3:00 PM
SU-GG-T-421
Radiobiological Optimization of Breast Cancer Radiotherapy Taking Into Account Patient Positioning, Breathing and Radiation Pneumonitis Scoring - S. Hyodynmaa, P. Mavroidis, B. Ferreira, S. Axelsson, N. Papanikolaou*, B. Lind
3:00 PM
SU-GG-T-422
Radiobiological Effectiveness of 3D-Conformal Radiotherapy, MLC-Based IMRT and Helical Tomotherapy in Lung Cancer - M. Delichas, B. Ferreira, C. Shi, A. Gutiérrez, B. Lind, N. Papanikolaou*, P. Mavroidis
3:00 PM
SU-GG-T-423
Radiobiological Comparison of Helical Tomotherapy and MLC-Based IMRT for Brain and Cranio-Spinal Tumors - C. Esquivel, P. Mavroidis, C. Shi, B. Ferreira, B. Lind, A. Gutiérrez, S. Stathakis, N. Papanikolaou*
3:00 PM
SU-GG-T-424
Volume-Based Isoeffective Dose Calculations for Hypofractionation and the Analysis of Critical Structure Limits with Respect to Known Toxicity Frequencies - R. Price*, K. Paskalev, J. Li, C. Ma, A. Pollack
3:00 PM
SU-GG-T-425
Radiobiologically Quantified Treatment Setup Uncertainties Based On Megavoltage (MV) CT Imaging - G. Swanson, C. Shi*, P. Mavroidis, S. Stathakis, F. Su, R. Ramer, V. Sarkar, B. Ferreira, G. Komisopoulos, D. Giantsoudi, N. Papanikolaou
3:00 PM
SU-GG-T-426
Evaluation of the Interfraction Dose Variation of MammoSite HDR Brachytherapy Using the Concept of Biological Effective Dose - Y. Kim*, E. Werts, M. Trombetta, D. Parda, M. Miften
3:00 PM
SU-GG-T-427
Dose Painting to Combat Tumor Hypoxia While Sparing Urethra in Prostate IMRT: A Biologically-Based Adaptive Approach Accounting for Setup Uncertainties and Organ Motion - L. Yin*, V. Moiseenko, K. Otto, M. Liu, J. North
3:00 PM
SU-GG-T-428
Incorporating Biological and Spatial Dose Information Can Change the Predicted Outcome of Radiotherapy Treatment Plans - B. Zhao*, M. Joiner, Y. Huang, Y. Liao, J. Burmeister
3:00 PM
SU-GG-T-429
Dose-Mass-Histogram (DMH) Vs. Dose-Volume Histogram (DVH) in Predicting Lung Complications - P. Mavroidis, G. Plataniotis, M. Gorka, S. Hyodynmaa, N. Papanikolaou*, B. Lind
3:00 PM
SU-GG-T-430
Radiobiological Investigation of the Dosimetric Effects of Daily Megavoltage CT Registration Techniques On Adaptive Radiotherapy with Helical Tomotherapy - P. Mavroidis, F. Su*, D. Giantsoudi, S. Stathakis, G. Komisopoulos, C. Shi, G. Swanson, N. Papanikolaou
3:00 PM
SU-GG-T-431
Radiobiological Evaluation On the Four-Dimensional Stereotactic Radiotherapy Plan - F. Su*, C. Shi, P. Mavroidis, N. Papanikolaou
3:00 PM
SU-GG-T-432
Dose-Volume Histogram Modeling Using the Gaussian Error Function in Radiotherapy - J. Chow*, D. Markel, R. Jiang
3:00 PM
SU-GG-T-433
Simple Plan Evaluation Methods for Three Dimensional Conformal Radiotherapy - R. Prabhakar*, G. Rath, P. Julka
3:00 PM
SU-GG-T-434
Submillimeter XKnife End-To-End Alignment Accuracy Using SAlinac and the Lucy Phantom - J. Grimm*, S. Grimm, D. Jacob, A. Sarkar, L. Simpson, E. Steffy, P. Brubaker
3:00 PM
SU-GG-T-435
Optimization of Isocenter Location for Intensity Modulated Stereotactic Treatment of Intracranial Targets - B. Salter*, M. Fuss, V. Sarkar, B. Wang, S. Hollingshaus, N. Papanikolaou, M. Tobler, D. Shrieve
3:00 PM
SU-GG-T-436
Setup Accuracy of a Thermoplastic Mask System Using Two-Dimensional (2D) On-Board Imager (OBI) for Fractionated Stereotactic Radiotherapy (FSRT) - L. Kuo*, J. Mechalakos, M. Hunt, J. Chang
3:00 PM
SU-GG-T-437
Localization and Treatment of Essential Tremors Using Gamma Knife Radiosurgery - M. Nair*, R. Mark, H. Smith, T. Neumann, P. Anderson
3:00 PM
SU-GG-T-438
Rind Radiosurgery: Investigation of a Novel Radiation Therapy Technique for the Treatment of Intracranial Lesions - V. Hosfeld*, J. Kirkpatrick, M. Oldham
3:00 PM
SU-GG-T-439
Dosimetric Comparison of Compensator and Multi-Leaf Collimator (MLC) Based Intensity Modulated Radiosurgery (IMRS) - X. Tang*, N. Tyagi, J. Wang, R. Rice, G. White, K. Cashon, L. Vanderspek, T. Pawlicki, K. Murphy, S. Jiang
3:00 PM
SU-GG-T-440
Dosimetric Delivery Verification of Whole Brain Radiotherapy with Hippocampal Avoidance (WBRT-HA) and Simultaneously Integrated Multiple Metastases Boost (SIB) - K. Caldwell*, A. Gutiérrez, N. Papanikolaou, W. Tome
3:00 PM
SU-GG-T-441
A New Method of Measuring the Accuracy of Stereotactic Cones and MLC with Gantry and Collimator Rotation - I. Nygren*, D. Spencer
3:00 PM
SU-GG-T-442
Clinical Experiences with KV Images for Stereotactic Radiosurgery and Radiotherapy Setup - L. Hong*, C. Chen, R. Yaparpalvi, M. Garg, D. Mah
3:00 PM
SU-GG-T-443
Effect of Inhomogeneity On Dose Distribution for Gamma Knife(R) Perfexion(TM) Treatment - W. Xiong*, Y. Huang, L. Lee, C. Burman
3:00 PM
SU-GG-T-444
Electronic Transmission of Gamma Knife Records to a Radiation Oncology Record and Verify System and E-Mail - K. Karsch, R. Drzymala*
3:00 PM
SU-GG-T-445
Dosimetric Analysis of Attenuation in the Leksell Gamma Knife PERFEXION Calibration Phantom Adaptor - J. Bhatnagar, J. Novotny*, M. Quader, M. Huq
3:00 PM
SU-GG-T-446
Dosimetric Characteristics of High Definition Multi-Leaf Collimator - Z. Wang*, Z. Chang, Q. Wu, S. Zhou, C. Huntzinger, F. Yin
3:00 PM
SU-GG-T-447
Import of Gamma Knife Model C Treatment Plans Into CERR - R. Drzymala*, K. Karsch, J. Alaly, D. Khullar, Y. Wu, J. Deasy
3:00 PM
SU-GG-T-448
Online Isocenter Corrections Based On Image Registration and Automatic Target Finding in SRS/SRT Cranial Treatment with the Bite-Block Frame System - X. Song*, A. Shiu, S. Woo, D. Kornguth, H. Wang
3:00 PM
SU-GG-T-449
Peripheral Dose Investigation of a Corpus Collosotomy by Gamma Knife, Model C - H. Zhao*, R. Drzymala, E. Klein, M. Smyth, D. Mansur
3:00 PM
SU-GG-T-450
Measurement of Relative Output Factors for the Leksell Gamma Knife PERFEXION by Film Dosimetry - J. Novotny*, J. Bhatnagar, M. Quader, M. Huq
3:00 PM
SU-GG-T-451
Clinical Evaluation of New BrainLab Image Guided Frameless SRS System - Y. Qian*
3:00 PM
SU-GG-T-452
Attenuation of Single Beam in Dose Calculation of Gamma Knife (GK) Treatment Planning - K. Li*, J. Wang, S. Lo, N. Mayr
3:00 PM
SU-GG-T-453
Verify the Reliability of Optical Guided Stereotactic Radiosurgery Target Localization Using Cone-Beam CT - J. Zhu*
3:00 PM
SU-GG-T-454
Localization Accuracy of Cone-Beam CT Guided Radiosurgery as Investigated Utilizing a Geometric Phantom - Z. Wang*, Q. Wu, Z. Chang, J. Kirkpatrick, F. Yin
3:00 PM
SU-GG-T-455
Feasibility Study of Treating Multiple Tumors Simultaneously with a 4-Bank MMLC Stereotactic Radiosurgery System - L. Potter*, J. Lian, D. Morris, K. Deschesne, M. Ewend, S. Chang
3:00 PM
SU-GG-T-456
Simulation of Intrafraction Motion and Overall Geometrical Accuracy of a Frameless Intracranial Radiosurgery Process - L. Walker*, V. Feygelman, P. Chinnaiyan, H. Yu, K. Forster
3:00 PM
SU-GG-T-457
Gamma Knife Quality Assurance Technique for Treatment of Functional Disorders - M. Nair*
3:00 PM
SU-GG-T-458
Improved Accuracy and Potentially Faster CyberKnife Synchrony Treatments by Tightening Constraints - J. Grimm*, D. Jacob, L. Simpson, C. Robinson, J. Mento, T. Bragg
3:00 PM
SU-GG-T-459
Analysis of Setup and Dosimetric Errors of KV CBCT Guided Stereotactic Intensity-Modulated Radiosurgery for Spinal Lesions - Y. Yang*, X. Li, T. Li, W. Fu, D. Heron, M. Huq
3:00 PM
SU-GG-T-460
Multiple Gating for Lung Stereotactic Body Radiotherapy Treatment - T. Li*, Y. Yang, X. Li, F. LI, D. Heron, M. Huq
3:00 PM
SU-GG-T-461
Beam Properties and Beam Modeling of a Radiosurgical Variable Aperture Collimator - M. Lee*, A. Purwar, S. Ankrah, M. Muniruzzaman, J. Nilsson, L. Thomson
3:00 PM
SU-GG-T-462
Intra-Fractional Motion of Bony Targets in the Spine and Pelvis During Extra-Cranial SRS Treatment - D. Lovelock*, P. Wang, H. Amols, m. Bilsky, Y. Yamada
3:00 PM
SU-GG-T-463
Validity of Inhomogeneity Correction in Small Felds Used in CyberKnife - I. Das*, G. Cryan
3:00 PM
SU-GG-T-464
Comparison of Dose Gradient in The Critical Normal Structures Between CyberKnife and IMRT Treatment of Prostate Cancer - S. Hossain*, A. Gottschalk, K. Huang, P. Xia, M. Descovich, C. Chuang, L. Ma
3:00 PM
SU-GG-T-465
Sequential Optimization Script to Generate HDR-Like Dose Distribution for Hypofractionated Prostate Treatment with CyberKnife System - E. Lessard*, W. Kilby, C. Maurer
3:00 PM
SU-GG-T-466
Quality Assurance and An Assessment of Using Cone-Beam CT with Extra-Cranial Frameless-Stereotactic Radiotherapy - A. Nawaz*, B. Schuller, G. Chen, L. Kachnic, J. Willins
3:00 PM
SU-GG-T-467
On the Sensitivity of Film-Based, In Vivo Dosimetry to Setup Errors for Stereotactic Body Radiotherapy Treatments - D. Giantsoudi*, A. Gutiérrez, C. Shi, N. Papanikolaou
3:00 PM
SU-GG-T-468
Image-Guided Stereotactic Spinal Radiosurgery with a Conventional Linear-Accelerator - J. Wang*, R. Rice, A. Mundt, K. Murphy
3:00 PM
SU-GG-T-469
On the Dosimetric Characterization of Inclined Target Geometries Using Helical Tomotherapy - M. Yam*, A. Gutiérrez, C. Shi, N. Papanikolaou
3:00 PM
SU-GG-T-470
Improving Rectal Sparing with a Single Anterior Proton Beam: A Planning Study - A. Melancon*, A. Lee, R. Kudchadker, L. Dong
3:00 PM
SU-GG-T-471
Potential Dosimetric Benefits of Four-Dimensional Radiation Treatment Planning - G. Starkschall*, K. Britton, M. McAleer, M. Jeter, M. Kaus, K. Bzdusek, R. Mohan, J. Cox
3:00 PM
SU-GG-T-472
Architecture and Development Issues That Effect Treatment Planning Performance - M. Moyers*
3:00 PM
SU-GG-T-473
The Effect of 4DCT and 3DCT Image Data Set On Dose Calculation and Optimization: Preliminary Results - P. Rassiah-Szegedi*, T. Roland, M. Szegedi
3:00 PM
SU-GG-T-474
A Virtual Linac for External Beam Radiation Therapy Treatment Planning - R. Sheu*, Y. Lo, A. Svoboda
3:00 PM
SU-GG-T-475
Volumetric Analysis of Moving Structures in Radiation Treatment Planning - D. Mirkovic*, S. Vedam, J. Chang
3:00 PM
SU-GG-T-476
Clinical Impact of Applying Heterogeneity Correction to Dose Calculations for Esophageal Sites - B. Dirksen*, R. Flynn, C. Svare, F. Goodin, S. Frigo
3:00 PM
SU-GG-T-477
Influence of Pitch and Jaw Width On Helical Tomotherapy Head and Neck Treatment Planning - M. Moldovan*, T. Lee, C. Chu, K. Hogstrom, R. Fields, J. Gibbons
3:00 PM
SU-GG-T-478
Prostate IMRT Planning: Aperture Based Vs. Beamlet-Based - S. ANAMALAYIL*, A. Harrison, C. Houser, A. MACRONE, A. MARTIN, J. KEIL, Y. Xiao, Y. Yu, J. Galvin
3:00 PM
SU-GG-T-479
Dosimetric Comparison of Whole Breast Irradiation Using Helical Tomographic Technique and Static Multileaf Collimated Field-In-Field Technique - H. Hsieh*, S. Chang, J. Yuan, J. Pino-y-Torres, W. Chen
3:00 PM
SU-GG-T-480
Displacement of Implanted Gold Fiducials Due to Rectal Marker Placed for Delineating the Luminal Surface of Rectum - S. Jang*, H. Wu, P. Sourivong, S. Katz, L. Rosen
3:00 PM
SU-GG-T-481
4D-CT What Is It Good For? - J. Meadows*, M. Wilkinson, T. Bichay
3:00 PM
SU-GG-T-482
Effects of Normal Lung Delineation Using PTV Vs. GTV On NTCP and Vx for Lung Cancer Cases Planned with and Without Tissue Inhomogeneity Correction - T. Podder*, A. Harrison, M. Werner-Wasik, Y. Xiao, J. Galvin, Y. Yu
3:00 PM
SU-GG-T-483
Practical Guidelines for Radiation Treatment Planning and Dose Constraints for Gastro-Intestinal Cancers - M. Bouchard*, T. Briere, S. Beddar, P. Das, M. Delclos, S. Krishnan, C. Crane
3:00 PM
SU-GG-T-484
Optimization and Normalization of Hypofractionated Lung Treatment Plans - N. Tyagi*, R. Rice, J. Wang, T. Pawlicki, S. Jiang, A. Sandhu, A. Mundt
3:00 PM
SU-GG-T-485
Comparison of Rush University In-House Dose Optimizer and Nucletron IPSA - Y. Liao*, M. Kirk, J. Turian, D. Bernard, T. Zusag, J. Chu
3:00 PM
SU-GG-T-486
Characteristics of Motion Induced Dose Reduction for Prostate Cancer in Proton Therapy - M. Yoon*, D. Shin, s. park, J. Kwak, D. Kim, Y. Lim, J. Kim, J. Shin, S. Lee, S. Park, K. Cho
3:00 PM
SU-GG-T-487
Field-In-Field Technique to Reduce High Dose Regions in the Treatment of the Axillary and Supraclavicular Lymph Nodes - R. Stevenson *, G. Jozsef, C. Hitchen, J. De Wyngaert
3:00 PM
SU-GG-T-488
Dosimetric Parameter Comparison of the Electronic Tissue Compensator Technique with the Conventional Physical Wedge Technique for the Whole Breast Treatment - M. Su*, V. Ayzenberg, W. Li
3:00 PM
SU-GG-T-489
Inhomogeneity Correction On the Proton Beam in Radiotherapy Planning Using Computed Tomography for Head-And-Neck Tumors - J. Kim*, J. Kwak, D. Shin, M. Yoon, s. park, J. Shin, Y. Lim, D. Kim, S. Lee, S. Park, K. Cho
3:00 PM
SU-GG-T-490
Analysis of Clinical Data Sets by Comparative DVH Analysis - W. Bice*
3:00 PM
SU-GG-T-491
Dose Summation for Multi-Phase Helical Tomotherapy Plans - J. Turian*, S. Chen, J. Coleman, G. Khelashvili, J. Chu
3:00 PM
SU-GG-T-492
Dosimetric Comparison of Prostate Radiotherapy Treatment Techniques - C. Buckey*, S. Stathakis, G. Swanson, F. Su, N. Papanikolaou
3:00 PM
SU-GG-T-493
Dosimetric Impact of Beam Energy and Number of Photon Fields On Prostate Dose Distributions: Inverse Planning and Validation Study - M. Ahmad*, M. Lund, H. Halpin, J. Deng, Z. Chen, S. Mani, M. Moran, R. Nath
3:00 PM
SU-GG-T-494
Dosimetric Uncertainties in Matched IMRT and Conventional Fields for Head and Neck Cancer Radiotherapy - A. Hu, J. Rembert, C. Akazawa, S. Yom, J. Quivey, P. Xia*
3:00 PM
SU-GG-T-495
Proton Treatment Planning of Complex Cases with Patch-Fields - A. Ly*, P. Nookala, D. Watt, B. Patyal
3:00 PM
SU-GG-T-496
A Feasibility Study of CT-Based IMRT Planning for Total Body Irradiation - M. Hossain*, Y. Chen, J. Fan, T. Lin, R. Price, J. Li, C. Ma
3:00 PM
SU-GG-T-497
Comparison of Prostate IMRT Plans From Three Commercial Treatment Planning Systems - Z. Chi*, L. Wang, L. Chen, Y. Chen, J. Fan, L. Jin, C. Ma
3:00 PM
SU-GG-T-498
Computational Modeling of Beam-Customization Devices for Heavy-Charged-Particle Radiotherapy - N. Kanematsu*, S. Yonai, A. Ishizaki, M. Torikoshi
3:00 PM
SU-GG-T-499
Deterministic Photon Kerma Distribution Based On the Boltzmann Equation for External Beam Radiation Therapy - J. Yuan*, W. Chen, D. Jette
3:00 PM
SU-GG-T-500
The Feasibility of Using the Anisotropic Analytical Algorithm (AAA) for IMRT Treatment Planning with the Varian Trilogy High Dose Rate (SRS) Mode - A. Hsu*, E. Mok
3:00 PM
SU-GG-T-501
Dosimetric Effects Caused by Interplay Between MLC-Delivery Dynamics and Organ Breathing-Motion in IMRT for Lung - J. Seco*, G. Sharp, H. Paganetti
3:00 PM
SU-GG-T-502
A Fast Algorithm to Predict Dose Distribution Perturbations in An MRI-Linac Hybrid System - C. Kirkby*, T. Stanescu, B. Murray, S. Rathee, M. Carlone, B. Fallone
3:00 PM
SU-GG-T-503
Dose Calculation On Cone-Beam Scans: A Correction Algorithm for Improved Dosimetry - C. Rowbottom*, T. Marchant, C. Moore
3:00 PM
SU-GG-T-504
Verification of Accuracy of the Monte Carlo Based Electron Treatment Planning System - J. Lee*, R. Chan
3:00 PM
SU-GG-T-505
Second Cancer Risks Following Proton Therapy and Intensity Modulated X-Ray Therapy for Prostate Cancer - J. Fontenot*, W. Newhauser
3:00 PM
SU-GG-T-506
Calculation of Positron Emitters’ Matrix for Absolute Dose Reconstruction in Proton Therapy - E. Fourkal*, J. Fan, C. Ma
3:00 PM
SU-GG-T-507
4D Planning: Dose Calculation That Accounts for Moving Beams and Tissue Deformation - J. West*, C. Maurer, J. Dooley
3:00 PM
SU-GG-T-508
Evaluation of the Monte Carlo Dose Calculation Engine of Eclipse Treatment Planning System for Electron Beams - G. Lagmago Kamta*, B. Reniers
3:00 PM
SU-GG-T-509
Impact of Gating On Dose Escalation in Lung Cancer Patients - J. antony*, B. Loo, D. Carlson, P. Maxim, G. Luxton, L. Xing
3:00 PM
SU-GG-T-510
Dose Smearing in GRID Therapy Due to Tumor Motion - S. Naqvi*, M. Mohiuddin, J. Ha, W. Regine
3:00 PM
SU-GG-T-511
Towards Real-Time Radiation Therapy: Superposition/Convolution at 4fps - R. Jacques*, R. Taylor, J. Wong, T. McNutt
3:00 PM
SU-GG-T-512
CT Resolution for Lung Treatment Planning: An Application of a 2 ½-D Random Lung Model Using MC Method - L. Liang*, E. Larsen, I. Chetty, M. Al-Ghazi
3:00 PM
SU-GG-T-513
The Prediction of Output Factor of Range Modulated Bragg Peak Using Patient and Beam Data - D. Kim*, S. Lee, Y. Lim, J. Kwak, s. park, D. Shin, M. Yoon, S. Park, K. Cho
3:00 PM
SU-GG-T-514
Full 3D Heterogeneous Dose Calculation for Total Body Irradiation: A Comparison Study Between Different Treatment Planning Systems - M. Lavallee*, L. Gingras, S. Aubin, C. Cote, M. Chretien, L. Beaulieu
3:00 PM
SU-GG-T-515
The Effect of Changes in the Content of Air in the Small Bowel On Dose Distributions in Proton and Photon Therapy for Pancreatic Cancer - M. Ingram*, A. Kassaee, J. McDonough, J. Metz
3:00 PM
SU-GG-T-516
Dose Calculation Verification for Stereotactic Treatment Plan - D. Schifter*, A. Kanner, B. Corn
3:00 PM
SU-GG-T-517
Dose Calculation Accuracy of a Commercial Treatment Planning System for Phantom Geometries with Varied Lung Densites - K. Babcock, G. Cranmer-Sargison*
3:00 PM
SU-GG-T-518
Comparison of Measured and Calculated Dose to the Contralateral Breast During Breast Irradiation with Tangential Fields - J. Novak*, A. Kassaee, S. Both, T. Styles
3:00 PM
SU-GG-T-519
Commissioning of the Commercial Planning System for the Electron Arc Treatment - S. Kang*, K. Cheong, T. Hwang, S. Kim, K. Kim, D. Oh, H. Bae
3:00 PM
SU-GG-T-520
Inhomogeneity Corrected/Non-Corrected Plan Evaluation for Simple and Conformal Plans For Radiation Therapy of Lung Cancer - A. Harrison*, T. Podder, M. Werner-Wasik, Y. Xiao, Y. Yu, J. Galvin
3:00 PM
SU-GG-T-521
Tissue Heterogeneity Corrections for Thoracic Malignancies: A Dosimetric Evaluation - H. Gabrish, T. Perkins*, T. Herman, M. Vlachaki, S. Ahmad
3:00 PM
SU-GG-T-522
Reducing Stray Radiation Dose for a Pediatric Patient Receiving Craniospinal Irradiation with Protons - P. Taddei*, D. Mirkovic, J. Fontenot, A. Giebeler, Y. Zheng, U. Titt, S. Woo, W. Newhauser
3:00 PM
SU-GG-T-523
Benchmarking of An MMLC for Intensity-Modulated Proton Radiotherapy, with Emphasis On Secondary Neutron Dose - J. Daartz*, M. Bangert, M. Engelsman, M. Bussiere, U. Oelfke, H. Kooy
3:00 PM
SU-GG-T-524
Initialization Strategy and Concurrent Imaging for Single 360 Degree Arc Intensity Modulated Treatment Delivery - T. McNutt*, E. Tryggestad, R. Susil, E. Ford, K. Bzdusek, C. Sandin, J. Wong
3:00 PM
SU-GG-T-525
Improved Proton Yield From a Laser-Proton Accelerator - I. Veltchev*, A. Guemnie Tafo, T. Lin, E. Fourkal, J. Fan, J. Li, A. Yogo, S. Orimo, C. Ma
3:00 PM
SU-GG-T-526
Energy Thresholds in 180 Degree Arc Delivery Proton Therapy - E. Sengbusch*, T. Mackie, A. Perez-Andujar, P. DeLuca
3:00 PM
SU-GG-T-527
Multi-Objective IMRT Planning Which Produces Deliverable Plans - D. Craft*, F. Carlsson, T. Bortfeld, H. Rehbinder
3:00 PM
SU-GG-T-528
Configuration of a Treatment Planning System with Monte Carlo Simulations for a Compact Proton Therapy Unit - Y. Zheng*, E. Klein, S. Rosenthal
3:00 PM
SU-GG-T-529
Pre-Clinical Evaluation of a 4D Tracking DmMLC-Based Delivery to Lung Tumor - Y. Liu*, L. Lin, B. Guo, N. Papanikolaou
3:00 PM
SU-GG-T-530
MR-Guided Radiotherapy: Magnetic Field Dose Effects - A. Raaijmakers*, B. Raaymakers, J. Lagendijk
3:00 PM
SU-GG-T-531
Comparison of Volumetric Modulated Arc Therapy (VMAT) with Serial Tomotherapy and Segmental (step and Shoot) IMRT for Boost Treatment of Prostate Cancer - D. Wolff*, F. Stieler
3:00 PM
SU-GG-T-532
Dosimetric Comparison of Proton Delivery Techniques: Double-Scattering and Uniform-Scanning - R. Slopsema*, L. Lin, C. McKenzie, D. Yeung, Z. Li, W. Hsi, J. Palta
3:00 PM
SU-GG-T-533
Rotational Intensity-Modulated Therapies: Can Conventional Arcs Match Tomotherapy? - M. Alber*
3:00 PM
SU-GG-T-534
Investigation of Electron Beam Collimated by Motorized Electron Multi Leaf Collimator (eMLC) Designed for Fixed and Modulated Electron Beam Therapy - A. Eldib*, L. Jin, J. Fan, T. Lin, J. Li, C. Ma
3:00 PM
SU-GG-T-535
Laser-Proton Inter-Track Effect and the DNA Double-Strand Break - J. Fan*, E. Fourkal, A. Guemnie Tafo, I. Veltchev, R. Price, W. Luo, J. Li, A. Eldib, L. Chen, C. Ma
3:00 PM
SU-GG-T-536
Characterisation of a Linac Cone-Beam-CT Option: What Is the Future Potential for Treatment Planning? - P. Cossmann*, A. Stuessi, C. von Briel
3:00 PM
SU-GG-T-537
Implementation of a Sector-Integration Method for Calculating Electron Cutout Factors at Extended Distances - M. Vossler*, M. Liew
3:00 PM
SU-GG-T-538
Dosimetric Effect of Energy Spread of Proton Beams - W. Luo*, C. Ma, F. Yin, J. Fan
3:00 PM
SU-GG-T-539
Carbon Fiber Couch Effect On Skin Doses as a Function of Photon Energy - I. Mihaylov*, E. Moros, P. Corry, J. Penagaricano
3:00 PM
SU-GG-T-540
Impact of Biological Optimization On Plan Quality: An Evaluation of a Commercial Treatment Planning System - V. Semenenko*, S. Qi, X. Li
3:00 PM
SU-GG-T-541
A Method of Delivering a Low Dose Fraction Using a TomoTherapy Unit - K. Rasmussen*, L. Schubert, D. Westerly, S. Howard, W. Tome
3:00 PM
SU-GG-T-542
Arc-Modulated Radiation Therapy (AMRT): A Novel Method for Rotational Radiation Therapy - C. Wang*, S. Luan, G. Tang, D. Chen, M. Earl, C. Yu
3:00 PM
SU-GG-T-544
A Laser-Ion Accelerator for Radiation Therapy Application - C. Ma*, E. Fourkal, I. Veltchev, J. Li, J. Fan, T. Lin, A. Guemnie Tafo
3:00 PM
SU-GG-T-545
Dosimetric Verification of RapidArc Treatment Delivery Using the Delta4 Phantom - S. Korreman*, J. Medin, I. Wiberg, J. Bocanek, Y. Archambault, L. Cozzi
3:00 PM
SU-GG-T-546
How Many Plans Are Required to Represent Pareto Surfaces in Multi-Objective IMRT Planning? - D. Craft*, T. Bortfeld
3:00 PM
SU-GG-T-547
Optimization and Evaluation of Accuracy of Harvesting Backscattering Electrons Technique - V. Moskvin, J. Kuros-Zolnierczuk*, M. Cao, I. Das
3:00 PM
SU-GG-T-548
Exclusion of Seminal Vesicles (SV) Spares Bladder More Than Rectum During IMRT for Prostate Cancer - N. Reddy*, D. Nori, A. Ravi, B. Sood, H. Chang
3:00 PM
SU-GG-T-549
Dosimetry of An X-Ray Endocavitary Proctoscope Adapted for Use with the Axxent® Electronic Brachytherapy System - T. Rusch*, E. Klein, L. Kelley, R. Myerson, S. Axelrod
3:00 PM
SU-GG-T-550
Comparison of Electron Beam Characteristics Between Two ElektaTM LINAC Models - T. Liu*, C. Yang, J. Perks, R. Stern, J. Purdy
3:00 PM
SU-GG-T-551
VMAT Compared to 3D-RT and Step and Shoot IMRT for Anal Cancer Pelvis Treatment - F. Stieler*, D. Wolff
3:00 PM
SU-GG-T-552
Statistical Validation of A New Helical Tomotherapy Patient Transfer Station - A. Zhuang*, A. Liu, T. Schultheiss, J. Wong
3:00 PM
SU-GG-T-553
Dosimetry Impact of Radiation Beams Due to Presence of Calypso Electromagnetic Array - S. Li*, C. Enke
3:00 PM
SU-GG-T-554
A Simple Method to Determine Couch and Collimator Angles in 3-Field Breast Irradiation - S. Lei*, G. Gagnon, A. Rashid, S. Borzillary
3:00 PM
SU-GG-T-555
Commissioning of a Treatment Planning System with Proton Therapy Capability - N. Wang*, A. Ghebremedhin, B. Patyal
3:00 PM
SU-GG-T-556
Characterization and Evaluation of the Varian 2.5 Mm HD120® High-Definition MLC - B. Poffenbarger*, C. Audet
3:00 PM
SU-GG-T-557
Optimal Energy for Partial Breast Irradiation Using a 360° Coronal Plane Rotation Technique - S. Becker*, G. Jozsef, J. De Wyngaert
3:00 PM
SU-GG-T-558
OPTIS2 - PSI''s New Ocular Proton Therapy Facility - J. Heufelder*, J. Verwey, M. van Goethem, L. Zografos, M. Jermann, G. Goitein, E. Hug