CT及三维计划系统在食管癌放疗定位中的应用  

Application of CT Scan with Conventional Stimulation in Treatment Planning of Esophageal Carcinoma

作　　者：胡慧玲[1] 穆双锋[1] 曲智锋[1] 段锋[1] 王培[1] 

机构地区：[1]河南科技大学第一附属医院,河南洛阳471003

出　　处：《河南科技大学学报（医学版）》2004年第4期257-258,共2页Journal of Henan University of Science & Technology:Medical Science

摘　　要：目的　对比食管癌放射治疗中CT扫描和常规模拟定位的优劣。方法　对 1 2 0例食管中、下段癌患者 ,同时行CT扫描和常规模拟定位 ,用三维计划系统制定治疗方案 ,对以上两种定位方法所描述靶区肿瘤的最大直径和等剂量分布情况进行对比分析。结果　两种定位方法肿瘤最大直径对比差别前后、右后、和左后分别为2 0±0 5、4 3± 1 2 ,1 4± 0 3 5、4.0± 1 .1 ,1 .5± 0 .4、3 .6± 1 .2 ;等剂量曲线分布为 1 2 0例和 63例 ,有明显统计学差异。Objective To compare CT scan with conventional stimulation in the treatment planning setup of esophageal carcinoma. Methods 120 patients with esophageal carcinoma were analyzed. All patients underwent both CT scan and conventional stimulation in the same treatment position. Treatment plans were made by the 3-dimension planning system, and the widest diameter of tumor and the isolate doses were analyzed through comparisons. Result The widest diameter and the isolate dose curve was obviously different in the two ways.Conclusion CT simulation has an advantage in the delineation of lateral extension of esophageal tumor over conventional simulation.

关 键 词：食管肿瘤 放射治疗 CT扫描定位 三维计划系统 

分 类 号：R735.1[医药卫生—肿瘤] R730.44[医药卫生—临床医学]