ESTRO 2025 - Abstract Book

S315

Brachytherapy – Head & neck, skin, eye

ESTRO 2025

Conclusion: Heterogeneity-corrected MC library-based dose distributions in water were in excellent agreement with the full MC simulations for 16-mm COMS and 20-mm notched plaques. Pre-computed library plans followed by real-time dose scaling uniquely allowed for accurate patient-specific MC based dose calculation with reduced planning time. This work establishes a baseline for introducing MC-based treatment planning for LDR ocular brachytherapy.

Keywords: Monte Carlo , plaque brachytherapy, dosimetry

References: 1. Thomson RM, Taylor REP, Rogers DWO. Med Phys. 2008; 35(12):5530-5543 . 2. Lesperance M, Inglis-Whalen M, Thomson RM. Med Phys. 2014;41(2):021717. 3. Semeniuk O, Malkov V, Chamberland MJP, Weersink RA. J Appl Clin Med Phys. 2023; 24(12):e14149. doi: 10.1002/acm2.14149 4. Thomson RM, Rogers DWO. Med Phys 2010; 37(1):368-376. 5. Melhus CS, Rivard MJ. Med Phys. 2008; 35(7):3364-3371. 6. Rivard MJ, Chiu-Tsao ST, Finger PT, et al. Med Phys 2011; 38(1):306-316. 7. Deufel, C.L.; McCauley, C.S.; Corbin, K.S.; Dalvin, L.A.; Petersen, I.A. Brachytherapy 2021 , 20 , 189–199. 8. Astrahan MA. Int J Radat Oncol Biol Phys 343 2005; 61(4):1227-1242. 9. Deufel CL, Furutani KM. Brachytheray 2015; 14(2):209-230.