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容积弧形调强与适形调强放疗在肝门胆管细胞癌治疗中的剂量学比较

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摘要 目的探讨适形调强放疗(IMRT)与容积弧形调强(RapidArC)在肝门胆管细胞癌的剂量学差异。方法选取10例行肝门胆管细胞癌的CT图像,分别做IMRT和Rapid Ar C两种放疗技术。结合两种放疗计划的剂量-体积直方图(DVH),对比两种计划靶区剂量分布的均匀性、适形度及靶区剂量分布和危机器官受量、机器跳数、治疗时间。结果与IMRT相比,Rapid Arc的靶区适形度较高,均匀性、靶区剂量分布及危机器官的受量比较差异无统计学意义(P>0.05),Rapid Arc低剂量区域体积(30 Gy的组织体积)、机器跳数、中位治疗时间均较少。结论在肝门胆管细胞癌放疗剂量学分析中,两种放疗计划均能达到靶区剂量要求及危机器官的保护,且Rapid Arc的适形度治疗时间、机器跳数均优于IMRT。
出处 《中国老年学杂志》 CAS 北大核心 2018年第3期568-570,共3页 Chinese Journal of Gerontology
基金 吉林省科技厅国际合作项目(No.20150414034GH)
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