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食管癌三维适形放疗和调强放疗定位与计划探讨 被引量:4

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摘要 目的:探讨食管癌三维适形放疗和调强放疗定位与计划进行比较,总结那种方法较好,更适合临床应用。方法:我院从2011年4月至2012年6月共治疗食管癌病人三维适形放疗(3DCRT)126例,调强放疗(IMRT)82例,全部用Eclipse计划系统,3DCRT100%剂量95%体积覆盖GTV,食管癌IMRT和3DCRT治疗时体位固定。结果:设计IMRT及3DCRT计划均使用相同的剂量体积限制条件进行优化计算,比较其剂量分布、DVH,适形度等。IMRT5野和7野适形度较好。结论:IMRT和3DCRT相比,脊髓、心脏和肝脏的受量3DCRT稍高于IMRT,但IMRT跳数高于3DCRT,通过方向优化改善计划质量。我院观察食管癌从剂量分布及临床实际应用认为IMRT优于3DCRT,IMRT5野和7野较理想。
出处 《甘肃医药》 2013年第2期135-136,共2页 Gansu Medical Journal
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同被引文献39

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