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http://dx.doi.org/10.1016/j.net.2021.07.005

Calculation of Jaws-only IMRT (JO-IMRT) dose distributions based on the AAPM TG-119 test cases using Monte Carlo simulation and Prowess Panther treatment planning system  

Luong, Thi Oanh (Department of Radiation Technology, Ho Chi Minh City Oncology Hospital)
Duong, Thanh Tai (Department of Industrial Electronics and Biomedical Engineering, Ho Chi Minh City University of Technology and Education)
Truong, Thi Hong Loan (Faculty of Physics & Engineering Physics, University of Science)
Chow, James CL (Department of Radiation Oncology, University of Toronto)
Publication Information
Nuclear Engineering and Technology / v.53, no.12, 2021 , pp. 4098-4105 More about this Journal
Abstract
The aim of this study is to calculate the JO-IMRT dose distributions based on the AAPM TG-119 using Monte Carlo (MC) simulation and Prowess Panther treatment planning system (TPS) (Panther, Prowess Inc., Chico, CA). JO-IMRT dose distributions of AAPM TG-119 were calculated by the TPS and were recalculated by MC simulation. The DVHs and 3D gamma index using global methods implemented in the PTW-VeriSoft with 3%/3 mm were used for evaluation. JO-IMRT dose distributions calculated by TPS and MC were matched the TG-119 goals. The gamma index passing rates with 3%/3 mm were 98.7% for multi-target, 96.0% for mock prostate, 95.4% for mock head-and-neck, and 96.6% for C-shape. The dose in the planning target volumes (PTV) for TPS was larger than that for the MC. The relative dose differences in D99 between TPS and MC for multi-target are 1.52%, 0.17% and 1.40%, for the center, superior and inferior, respectively. The differences in D95 are 0.16% for C-shape; and 0.06% for mock prostate. Mock head-and-neck difference is 0.40% in D99. In contrast, the organ curve for TPS tended to be smaller than MC values. JO-IMRT dose distributions for the AAPM TG-119 calculated by the TPS agreed well with the MC.
Keywords
JO-IMRT plan; AAPM TG-119; Monte Carlo simulation; DOSCTP;
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