基于DPM的放射治疗剂量分布计算  

Dose Calculation of Radiotherapy Based on DPM

作　　者：刘艳梅[1] 薛定宇[1] 徐心和[1] 陈震[1] 李一波[2] 

机构地区：[1]东北大学教育部暨辽宁省流程工业综合自动化重点实验室,辽宁沈阳110004 [2]沈阳航空工业学院,辽宁沈阳110034

出　　处：《中国医学物理学杂志》2006年第3期161-165,共5页Chinese Journal of Medical Physics

基　　金：国家自然科学基金资助项目;项目编号60475036

摘　　要：目的:利用蒙特卡罗方法模拟放射治疗的剂量分布。方法:通过改写蒙特卡罗剂量计算软件-DPM(dose planning method)扩展其功能。编程实现了DPM仿真模型的建立、输入文件的转化以及计算结果的可视化。结果:改写后的DPM不仅可以处理结构化介质,尤其又具有处理人体三维CT数据的能力。实验结果表明该方法的正确性、有效性。结论:探索了用DPM进行精确剂量计算的路径,对于提高放射治疗计划水平具有重要的指导意义和应用价值。Objective： 3D treatment planning systems in radiotherapy is important to achieve an accurate assessment of all aspects of the dose distribution and requires visualization of dose distribution in an easy and clear way, Method：（dose planning method,DPM ） based on Monte Carlo method was rewrited to calculate dose and extend its functionality, Primly realized DPM modeling, conversion into DPM input files and disposing dose calculation results in 2D and 3D display. Results： DPM modified can not only deal with geometry medium but also dispose of CT data and get dose calculation visualization results. The simulation results have shown that this method is correct and effective, Conclusion： The proposed method is capable of enhancing the level of radiotherapy planning.

关 键 词：放射治疗 剂量分布 蒙特卡罗方法 可视化 CT数据 

分 类 号：R701.23[医药卫生—临床医学]