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A vectorized Monte Carlo code for radiotherapy treatment planning dose calculation.

Xuejun Weng·Yulong Yan·Huazhong Shu·Jiawang Wang·Steve B Jiang·Limin Luo
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Abstract

How to speed up Monte Carlo (MC) simulation in dose calculation without losing its intrinsic accuracy is one of the key issues of making a clinical MC dose engine. In this study we intensively investigated a special parallel computation technique, the vectorization technique, to boost simulation efficiency on a personal computer (PC) without extra hardware investment. A MC code, dose planning method (DPM), was extensively modified into a vectorized code, V-DPM, using the streaming single-instruction-multiple-data extension (SSE) parallel computation model. Comparative simulations were conducted for typical simulation cases in both DPM and V-DPM codes. We found that in every case the V-DPM code runs 1.5 times faster than the DPM code with variance of 0.6%.

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AlgorithmsComputing MethodologiesMonte Carlo MethodQuality ControlRadiometryRadiotherapy DosageRadiotherapy Planning, Computer-AssistedReproducibility of ResultsSensitivity and SpecificitySoftwareComparative StudyEvaluation StudyJournal ArticleValidation Study

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Xuejun Weng, Yulong Yan, Huazhong Shu, Jiawang Wang, Steve B Jiang, Limin Luo. 2003-04-07. A vectorized Monte Carlo code for radiotherapy treatment planning dose calculation.. https://doi.org/10.1088/0031-9155%2F48%2F7%2F401

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