MO-FG-CAMPUS-TeP1-01: An Efficient Method of 3D Patient Dose Reconstruction Based On EPID Measurements for Pre-Treatment Patient Specific QA

2016 ◽  
Vol 43 (6Part31) ◽  
pp. 3718-3718
Author(s):  
R David ◽  
B Zwan ◽  
J Hindmarsh ◽  
E Seymour ◽  
K Kandasamy ◽  
...  
Keyword(s):  
Efficient Method ◽  
Patient Dose ◽  
Patient Specific ◽  
Dose Reconstruction ◽  
Treatment Patient ◽  
Patient Specific Qa ◽  
Pre Treatment

scholarly journals Portal Dosimetry as a patient specific Quality Assurance tool for Volumetric Arc Radiotherapy

2021 ◽  
Vol 9 (1) ◽  
pp. 29-33
Author(s):  
Vikram Rathore ◽  
◽  
Mr. V.K Mishra ◽  
Dr. V Choudhary ◽  
Mr. G.S. Gautam ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Patient Specific ◽  
Advanced Technique ◽  
Mean Values ◽  
Treatment Patient ◽  
Portal Dosimetry ◽  
Gamma Index ◽  
Patient Specific Qa ◽  
The Mean ◽  
Pre Treatment

Introduction: Volumetric Arc Radiotherapy (VMAT) is an advanced technique. Calculations of VMATplans are not so accurate even with State-of-Art dose calculation algorithms due to their complexity.Hence pre-treatment patient specific Quality Assurance (QA) of each VMAT plan is required. In thepresent study Electronic Portal Imaging Device (EPID) based portal dosimetry system was used forpre-treatment patient specific QA. Material and Methods: A total of 50 patients were chosen inthis study. Verification plans of each patient were calculated for portal dosimetry then executed onthe EPID system to measure the spatial distribution of radiation dose. Calculated and measured dosedistribution were compared to evaluate Gamma Index (GI) passing criteria of Dose Difference (DD)of 3% and Distance–to-Agreement (DTA) of 3mm, Area Gamma (γ% ≤1) >95%, Average Gamma(gAve) <0.5% and Maximum Gamma (gMax) <3.5%. Results: The mean values of Area Gamma (γ%≤1) were observed to be varied from 99.14±0.23% to 99.87±0.18%. The Mean Values of AverageGamma (gAve) are found to vary from 0.19±0.05% to 0.15±0.04% and the mean values ofMaximum Gamma (gMax) found to be varied from 1.94±0.37% to 1.59±0.41%. All the plans werepassed the gamma index criteria with very good agreement. Thus the use of Portal Dosimetry forpre-treatment patient QA is found to be a very useful, quick, precise, efficient and effective pre-treatment patient specific QA tool for VMAT treatment. Conclusion: Portal Dosimetry can be utilizedfor routine use for patient specific quality assurance for Volumetric Arc Radiotherapy treatment.

scholarly journals PO-0874: Pre-treatment QA for IMRT: comparison of planar and helical diode arrays and 3D patient dose reconstruction

2015 ◽  
Vol 115 ◽  
pp. S446-S447
Author(s):  
J. Hindmarsh ◽  
R. David ◽  
B. Zwan ◽  
K. Sloan ◽  
C. Lee
Keyword(s):  
Patient Dose ◽  
Dose Reconstruction ◽  
Pre Treatment

2D dose reconstruction of IMRT patient-specific QA based on log file

2020 ◽  
Vol 166 ◽  
pp. 108473
Author(s):  
Sayid Mubarok ◽  
Wibowo Edy Wahyu ◽  
Pawiro Ardjo Supriyanto
Keyword(s):  
Patient Specific ◽  
Dose Reconstruction ◽  
Patient Specific Qa ◽  
Log File

SU-E-T-26: Evaluation of New Pre-Treatment In-Air Patient Specific QA Software for TomoTherapy Treatments

2012 ◽  
Vol 39 (6Part9) ◽  
pp. 3708-3708
Author(s):  
L Levinson ◽  
Q Chen ◽  
K Ding ◽  
W Renner ◽  
S Benedict ◽  
...  
Keyword(s):  
Patient Specific ◽  
Patient Specific Qa ◽  
Pre Treatment

Pre-treatment patient-specific stopping power by combining list-mode proton radiography and x-ray CT

2017 ◽  
Vol 62 (17) ◽  
pp. 6836-6852 ◽  
Author(s):  
Charles-Antoine Collins-Fekete ◽  
Sébastien Brousmiche ◽  
David C Hansen ◽  
Luc Beaulieu ◽  
Joao Seco
Keyword(s):  
Stopping Power ◽  
Patient Specific ◽  
List Mode ◽  
Proton Radiography ◽  
X Ray ◽  
Treatment Patient ◽  
Pre Treatment
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