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乳腺癌改良根治术后3种放疗技术的剂量学研究 被引量:14

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摘要 目的:通过比较乳腺癌改良根治术后三维适形、调强、三维+调强3种辅助放疗方式的剂量学差异,为临床选择放疗计划提供依据。方法:选取46例乳腺癌患者,每例患者分别设计三维适形、调强、三维+调强3套放疗计划。处方剂量50 Gy/25F。用剂量体积直方图比较靶区和危及器官的剂量学差异,选择最优方案进行实际治疗。结果:3维适形计划中靶区的Dmax、V110、均匀指数(HI)高于调强、三维+调强计划(P1、2<0.00),而Dmin、Dmean、V95、适形指数(CI)低于调强、三维+调强计划(P1、2<0.01)。患肺的V5、V10,三维适形计划低于调强、三维+调强计划(P1、2<0.01),三维适形+调强计划低于调强计划(P3<0.01)。结论:三维+调强计划较三维计划提高了靶区的适形度和均匀性,较调强计划降低了患侧肺低剂量暴露的体积,是可行的放疗方案。
出处 《实用医学杂志》 CAS 北大核心 2015年第18期3016-3018,共3页 The Journal of Practical Medicine
基金 衡阳市科技计划项目课题资助(编号:2014KJ35)
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二级参考文献30

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