食管癌常规放疗内支架与靶区及危及器官剂量学分析  

Relationship of dose perturbation between stent and target and organs at risk with conventional radiotheraphy of esophageal carcinoma

作　　者：张建文[1] 杨波[1] 罗惠群[1] 庞皓文[1] 孙晓杨[1] 

机构地区：[1]泸州医学院附属医院肿瘤科,四川泸州646000

出　　处：《现代肿瘤医学》2013年第11期2472-2475,共4页Journal of Modern Oncology

摘　　要：目的:分析金属支架与食管癌常规放疗靶区及危及器官剂量分布关系。方法:10例食管癌患者分为支架组和无支架组,行增强模拟定位CT扫描,在TPS计划系统勾画靶区和危及器官,设置3野常规放疗计划。放射源为6MV-X线。结果:适型指数(CI)和均匀性指数(HI)、靶区和危及器官,剂量支架组与无支架组无明显差异(P>0.05)。结论:有食管内支架采用多野同中心常规照射可获得无支架的剂量分布。Objective：To evaluate the relationship of dose distribution between esophageal stent and target and organs at risk （OAR） with conventional radiotheraphy （CRT） of esophageal carcinoma.Methods：Ten patients were divided into stent and non-stent group.Describing target and OAR,designed radiation plan with 3 fields.Radiation source was 6MV-X-ray.Results：There was no significant difference for target conformity index （CI） and homogeneity index （HI）,target and OAR volum dose for stent and non-stent group （P ＞ 0.05）.Conclusion：It can gain similar dose distribution with non-stent to use isocenter CRT for esophageal stent.

关 键 词：食管癌 放射线 支架 常规放疗 

分 类 号：R730.55[医药卫生—肿瘤] R735.1[医药卫生—临床医学]