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旋转拉弧适形放疗技术与固定野动态调强放疗技术在非小细胞肺癌治疗计划中的剂量学比较 被引量:4

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摘要 目的从剂量学角度对旋转拉弧适形放疗技术(RapidArc-SBRT)与固定野动态调强放疗技术(IMRT)治疗非小细胞肺癌的计划进行比较。方法 15例非小细胞肺癌患者接受RapidArc-SBRT与IMRT治疗,对靶区剂量分布、正常肺组织和关键器官受照射剂量、整个放疗过程的机器总跳数和治疗时间进行比较。结果靶区适形指数(CI)与不均匀性指数(HI),IMRT优于RapidArc-SBRT(P<0.01);受较低剂量照射的正常肺组织体积RapidArc-SBRT大于IMRT(P<0.05);治疗总跳数和治疗时间RapidArc-SBRT优于IMRT(P<0.01);关键器官受量IMRT与RapidArc-SBRT比较无统计学差异。结论 IMRT与RapidArc-SBRT在组织和危及器官受照射剂量上具有相似的剂量学优势,IMRT具有更明显的靶区适形度优势,RapidArc-SBRT具有机器总跳数和治疗时间优势。
出处 《山东医药》 CAS 北大核心 2011年第12期77-78,共2页 Shandong Medical Journal
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