SU-FF-T-658: Investigation of An in House Monte Carlo Based Inverse Planning System for Mixed Beam Radiation Therapy

2009 ◽  
Vol 36 (6Part19) ◽  
pp. 2676-2676 ◽  
Author(s):  
A El Dib ◽  
L Jin ◽  
J Fan ◽  
J Li ◽  
I Emam ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Radiation Therapy ◽  
Planning System ◽  
Beam Radiation ◽  
Inverse Planning ◽  
Mixed Beam

scholarly journals Dosimetric Studies of Mixed Energy Intensity Modulated Radiation Therapy for Prostate Cancer Treatments

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
K. Abdul Haneefa ◽  
K. K. Shakir ◽  
A. Siddhartha ◽  
T. Siji Cyriac ◽  
M. M. Musthafa ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Radiation Therapy ◽  
Intensity Modulated Radiation Therapy ◽  
High Energy ◽  
Photon Beam ◽  
Planning System ◽  
Treatment Planning System ◽  
Intensity Modulated ◽  
Mixed Beam ◽  
Mixed Field

Dosimetric studies of mixed field photon beam intensity modulated radiation therapy (IMRT) for prostate cancer using pencil beam (PB) and collapsed cone convolution (CCC) algorithms using Oncentra MasterPlan treatment planning system (v. 4.3) are investigated in this study. Three different plans were generated using 6 MV, 15 MV, and mixed beam (both 6 and 15 MV). Fifteen patients with two sets of plans were generated: one by using PB and the other by using CCC for the same planning parameters and constraints except the beam energy. For each patient’s plan of high energy photons, one set of photoneutron measurements using solid state neutron track detector (SSNTD) was taken for this study. Mean percentage of V66 Gy in the rectum is 18.55±2.8, 14.58±2.1, and 16.77±4.7 for 6 MV, 15 MV, and mixed-energy plans, respectively. Mean percentage of V66 Gy in bladder is 16.54±2.1, 17.42±2.1, and 16.94±41.9 for 6 MV, 15 MV, and mixed-energy plans, respectively. Mixed fields neutron contribution at the beam entrance surface is 45.62% less than at 15 MV photon beam. Our result shows that, with negligible neutron contributions, mixed field IMRT has considerable dosimetric advantage.

Photon-beam radiation therapy and Monte Carlo

2000 ◽  
Vol 2 (5) ◽  
pp. 31-38 ◽  
Author(s):  
C.L.H. Siantar ◽  
D. Garrett
Keyword(s):  
Monte Carlo ◽  
Radiation Therapy ◽  
Photon Beam ◽  
Beam Radiation

scholarly journals Dosimetric and QA aspects of Konrad inverse planning system for commissioning intensity-modulated radiation therapy

2007 ◽  
Vol 32 (2) ◽  
pp. 51 ◽  
Author(s):  
Shrikant Deshpande ◽  
VK Sathiyanarayanan ◽  
Janhavi Bhangle ◽  
Kumara Swamy ◽  
Sumit Basu
Keyword(s):  
Radiation Therapy ◽  
Intensity Modulated Radiation Therapy ◽  
Planning System ◽  
Inverse Planning ◽  
Intensity Modulated

Mixed beam radiation therapy for unresectable squamous cell carcinomas of the head and neck: the results of a randomized RTOG study

1984 ◽  
Vol 10 (12) ◽  
pp. 2211-2215 ◽  
Author(s):  
Thomas W. Griffin ◽  
Roger Davis ◽  
George E. Laramore ◽  
Moshe H. Maor ◽  
Frank R. Hendrickson ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Head And Neck ◽  
Squamous Cell ◽  
Squamous Cell Carcinomas ◽  
Beam Radiation ◽  
Mixed Beam

A novel approach in electron beam radiation therapy of lips carcinoma: A Monte Carlo study

2013 ◽  
Vol 40 (4) ◽  
pp. 041720 ◽  
Author(s):  
Parvaneh Shokrani ◽  
Milad Baradaran-Ghahfarokhi ◽  
Maryam Khorami Zadeh
Keyword(s):  
Monte Carlo ◽  
Radiation Therapy ◽  
Electron Beam ◽  
Monte Carlo Study ◽  
Beam Radiation ◽  
Electron Beam Radiation ◽  
Novel Approach

scholarly journals A Probability Approach to the Study on Uncertainty Effects on Gamma Index Evaluations in Radiation Therapy

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Francisco Cutanda Henríquez ◽  
Silvia Vargas Castrillón
Keyword(s):  
Radiation Therapy ◽  
Uncertainty Propagation ◽  
Absorbed Dose ◽  
Planning System ◽  
External Beam Radiation ◽  
Treatment Planning System ◽  
Mathematical Methods ◽  
Beam Radiation ◽  
Treatment Unit ◽  
Gamma Index

Two datasets of points of known spatial positions and an associated absorbed dose value are often compared for quality assurance purposes in External Beam Radiation Therapy (EBRT). Some problems usually arise regarding the pass fail criterion to accept both datasets as close enough for practical purposes. Instances of this kind of comparisons are fluence or dose checks for intensity modulated radiation therapy, modelling of a treatment unit in a treatment planning system, and so forth. The gamma index is a figure of merit that can be obtained from both datasets; it is widely used, as well as other indices, as part of a comparison procedure. However, it is recognized that false negatives may take place (there are acceptable cases where a certain number of points do not pass the test) due in part to computation and experimental uncertainty. This work utilizes mathematical methods to analyse comparisons, so that uncertainty can be taken into account. Therefore, false rejections due to uncertainty do not take place and there is no need to expand tolerances to take uncertainty into account. The methods provided are based on the rules of uncertainty propagation and help obtain rigorous pass/fail criteria, based on experimental information.

scholarly journals Dosimetric characteristics of 6 MV photons from TrueBeam STx medical linear accelerator: simulation and experimental data

2019 ◽  
Vol 9 (2) ◽  
pp. 37-44
Author(s):  
N. D. Ton Ton ◽  
B. D. Linh Linh ◽  
Q.T. Pham Pham
Keyword(s):  
Monte Carlo ◽  
Particle Physics ◽  
Nuclear Physics ◽  
Planning System ◽  
Treatment Planning System ◽  
Linear Accelerators ◽  
Index Method ◽  
Beam Radiation ◽  
Depth Dose ◽  
Check Calculation

A TrueBeam STx is one of the most technologically advanced linear accelerators forradiotherapy and radiosurgery. The Monte Carlo simulation widely used in many applications in various fields such as nuclear physics, astrophysics, particle physics, and medicine. The Geant4/GATE Monte Carlo toolkit is developed for the simulation in imaging diagnostics, nuclear medicine, radiotherapy, and radiation biology to more accurately predict beam radiation dosimetry. In this work, we present the simulation results of the dosimetric characteristics of a 6 MV photon beam of TrueBeam STx medical LINAC using Monte Carlo Geant4/GATE. The percentage depth dose (PDD), central axis depth dose (Profile) have been simulated and compared with those measured in a water phantom for field sizes 10×10 cm2 via the gamma-index method. These results will permit to check calculation data given by the treatment planning system.

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