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乳腺癌保乳术后调强计划的剂量学研究 被引量：6

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摘要 目的比较乳腺癌术后患者采取仰卧位与俯卧位两种不同体位接受治疗的调强计划在靶区和危及器官上的剂量差异性,寻求乳腺癌术后调强放疗较佳的治疗体位。方法随机选取12例乳腺癌保乳术后的患者并随机分为两组,分别采取仰卧位、俯卧位两种体位扫描,应用Pinnacle9.2计划系统,设计患侧乳腺切线方向小角度展开入射的4野调强计划,在计划靶区满足处方剂量的前提下,比较分析两种体位的调强计划靶区的适形度和剂量均匀性,肺的、和平均剂量,心脏的V39和V40平均剂量等剂量学指标。结果通过对12例乳腺癌保乳术后调强计划设计中,仰卧位、俯卧位两种不同体位扫描的计划比较发现,两组计划在靶区适形性及心脏受量方面差异均无统计学意义,仰卧位调强计划靶区均匀性优于俯卧位,而俯卧位使肺得到较好的保护。结论乳腺癌术后调强放疗体位可根据患者的肺功能状况选择仰卧位或俯卧位。
作者 白雪 杜向慧 王升晔 陈维军 王彬冰 狄小云
机构地区 浙江省肿瘤医院放疗科放射物理室
出处 《中国辐射卫生》 2013年第2期242-245,共4页 Chinese Journal of Radiological Health
基金 浙江省卫生厅A类项目(编号320-67)
关键词 乳腺癌 俯卧位 调强放疗
分类号 R815 [医药卫生—放射医学]
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参考文献13

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二级参考文献18

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共引文献64

同被引文献66

引证文献6

二级引证文献26

中国辐射卫生
2013年 第2期

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