胰腺癌多种调强放疗计划的剂量学比较与探讨
摘要
计三种调强放疗计划,5野方案0°、40°、150°、210°、330°,7野方案0°、20°、50°、153°、204°、320°、340°,9野方案
0°、30°、60°、130°、170°、190°、220°、300°、330°,比较这三种方案的靶区、危机器官的受照剂量差异。结果:三种IMRT
计划都可以满足靶区D95的全覆盖,三种方案受照剂量上的差异没有统计学意义。危机器官(OARs)方面,5野方案在肾脏D33%受照剂量
比较上有优势,7野方案在小肠V30受照体积比5野方案要小,三种方案在脊髓受量方面相差不大,没有统计学意义。结论:相同靶区相
同处方剂量下,5野方案可以有效降低肾脏D33%的照射剂量,7野方案可以有效降低小肠V30的照射体积。
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DOI: http://dx.doi.org/10.18686/yxyj.v2i8.33596
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