Document Type
Article
Publication Title
Journal of applied clinical medical physics [electronic resource] / American College of Medical Physics
Abstract
PURPOSE: This study aims to validate HDR brachytherapy dosimetry for cervical cancer patients utilizing the egs_brachy Monte Carlo (MC) simulation.
METHODS: Three cervical cancer patients treated with
RESULTS: TPS-calculated doses were greater than those obtained from MC simulations. For the CTV, the median percentage differences were 7.9% (Q1: 6.4%, Q3: 9.8%; range: 0.4%-10.4%) for D
CONCLUSION: CTV and critical organ doses calculated by the TPS were consistently greater than those obtained from MC simulations. This suggests that the TPS may overestimate dose distributions, especially in heterogeneous regions like the pelvis. These results emphasize the need for continued validation of TPS algorithms in HDR brachytherapy for cervical cancer.
First Page
70144
Last Page
70144
DOI
10.1002/acm2.70144
Publication Date
7-1-2025
Recommended Citation
Tai DT, Thu NTA, Thanh TT, Tuan PA, Chamberland MJP, Sandwall P, Bradley D, Chow JCL. Novel validation of HDR brachy therapy dosimetry for cervical cancer using egs_brachy Monte Carlo simulations: a comparative analysis with Oncentra treatment planning system. J Appl Clin Med Phys. 2025 Jul;26(7):e70144. doi: 10.1002/acm2.70144. PMID: 40653789; PMCID: PMC12256655.