scholarly journals Cross verification of independent dose recalculation, log files based, and phantom measurement‐based pretreatment quality assurance for volumetric modulated arc therapy

2020 ◽  
Vol 21 (11) ◽  
pp. 98-104
Author(s):  
Ce Han ◽  
Jinling Yi ◽  
Kecheng Zhu ◽  
Yongqiang Zhou ◽  
Yao Ai ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Volumetric Modulated Arc Therapy ◽  
Phantom Measurement ◽  
Log Files ◽  
Arc Therapy ◽  
Dose Recalculation

Linking log files with dosimetric accuracy – A multi-institutional study on quality assurance of volumetric modulated arc therapy

2015 ◽  
Vol 117 (3) ◽  
pp. 407-411 ◽  
Author(s):  
Marlies Pasler ◽  
Jochem Kaas ◽  
Thijs Perik ◽  
Job Geuze ◽  
Ralf Dreindl ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Volumetric Modulated Arc Therapy ◽  
Log Files ◽  
Arc Therapy ◽  
Dosimetric Accuracy

Quality assurance of volumetric modulated arc therapy using Elekta Synergy

2009 ◽  
pp. 1-5 ◽  
Author(s):  
Akihiro Haga ◽  
Keiichi Nakagawa ◽  
Kenshiro Shiraishi ◽  
Saori Itoh ◽  
Atsuro Terahara ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Volumetric Modulated Arc Therapy ◽  
Arc Therapy

scholarly journals Physical dosimetry of volumetric modulated arc therapy (VMAT) using EPID and 2D array for quality assurance

2018 ◽  
Vol 49 (2) ◽  
pp. 477-484
Author(s):  
Ismail E. Mohamed ◽  
Ayman G. Ibrahim ◽  
Hamdy M. Zidan ◽  
Hesham S. El-Bahkiry ◽  
Adel Y. El-sahragti
Keyword(s):  
Quality Assurance ◽  
Volumetric Modulated Arc Therapy ◽  
Arc Therapy ◽  
2D Array

scholarly journals Positional Accuracy and Quality Assurance of Backup JAWs Required for Volumetric Modulated Arc Therapy

2012 ◽  
Vol 68 (11) ◽  
pp. 1486-1491
Author(s):  
Daisaku Tatsumi ◽  
Ryosei Nakada ◽  
Akinori Ienaga ◽  
Akane Yomoda ◽  
Makoto Inoue ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Volumetric Modulated Arc Therapy ◽  
Positional Accuracy ◽  
Arc Therapy

Quality assurance of volumetric-modulated arc therapy head and neck cancer treatment using PRESAGE® dosimeter

2018 ◽  
Vol 17 (4) ◽  
pp. 441-446 ◽  
Author(s):  
Jalil ur Rehman ◽  
Muhammad Isa ◽  
Nisar Ahmad ◽  
H. M. Noor ul Huda Khan Asghar ◽  
Zaheer A. Gilani ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Cancer Treatment ◽  
Head And Neck ◽  
Treatment Planning ◽  
Volumetric Modulated Arc Therapy ◽  
Planning System ◽  
Treatment Planning System ◽  
Ct Scans ◽  
Arc Therapy ◽  
Calculated Dose

AbstractBackgroundAccurate three-dimensional dosimetry is essential in modern radiotherapy techniques such as volumetric-modulated arc therapy (VMAT) and intensity-modulated radiation therapy (IMRT). In this research work, the PRESAGE® dosimeter was used as quality assurance (QA) tool for VMAT planning for head and neck (H&N) cancer.Material and methodComputer tomography (CT) scans of an Image Radiation Oncology Core (IROC) H&N anthropomorphic phantom with both IROC standard insert and PRESAGE® insert were acquired separately. Both CT scans were imported into the Pinnacle (9.4 version) TPS for treatment planning, where the structures [planning target volume (PTV), organs at risk) and thermoluminescent detectors (TLDs) were manually contoured and used to optimise a VMAT plan. Treatment planning was done using VMAT (dual arc: 182°–178°, 178°–182°). Beam profile comparisons and gamma analysis were used to quantify agreement with film, PRESAGE® measurement and treatment planning system (TPS) calculated dose distribution.ResultsThe average ratio of TLD measured to calculated doses at the four PTV locations in the H&N phantom were between 0·95 to 0·99 for all three VMAT deliveries. Dose profiles were taken along the left–right, the anterior–posterior and superior–inferior axes, and good agreement was found between the PRESAGE® and Pinnacle profile. The mean value of gamma results for three VMAT deliveries in axial and sagittal planes were found to be 94·24 and 93·16% when compared with film and Pinnacle, respectively. The average values comparing the PRESAGE® results and dose values calculated on Pinnacle were observed to be 95·29 and 94·38% in the said planes, respectively, using a 5%/3 mm gamma criteria.ConclusionThe PRESAGE® dose measurements and calculated dose of pinnacle show reasonable agreement in both axial and sagittal planes for complex dual arc VMAT treatment plans. In general, the PRESAGE® dosimeter is found to be a feasible QA tool of VMAT plan for H&N cancer treatment.

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