Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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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)
  • Received : 2020.07.08
  • Accepted : 2021.07.04
  • Published : 2021.12.25
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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.

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References

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