调强适形放射治疗鼻咽癌6例体会  

IMRT for treatment of nasopharyngeal carcinoma:A report of 6 cases

作　　者：赵于飞[1] 张红雁[1] 吴韦炜[1] 吴爱东[1] 罗文广[1] 程广源[1] 

机构地区：[1]安徽省立医院放射治疗科,安徽合肥230001

出　　处：《蚌埠医学院学报》2004年第3期248-250,268,共4页Journal of Bengbu Medical College

摘　　要：目的 :介绍调强适形放射治疗鼻咽癌的效果。方法 :2 0 0 1年 8月～ 2 0 0 2年 6月收治经病理证实的鼻咽癌 6例 ,孔雀系统进行调强适形放射治疗。每周 3～ 5次 ,每次 3～ 3.5Gy ,总剂量 (归一到常规分割 ) 4 9～ 70Gy。 结果 :95 %等剂量曲线包绕PTV ,均匀度指数 (最大剂量 /处方剂量 )平均 1 .1 5 8,重要器官的平均受量均低于其耐受剂量 (TD5 / 5 )的 5 0 %。结论 :调强适形放射治疗鼻咽癌能较好地保护周围敏感器官 。Objective:To introduce the experience in treatment of nasopharyngeal carcinoma with intensity modulated radiation therapy(IMRT).Methods:From Aug.2001 to Jun.2002,6 cases of nasopharyngeal carcinoma were treated with IMRT by means of the MIMiC collimator and the peacock plan system.The irradiation dose was delivered at 3 to 3.5 Gy,3 to 5 times per week.The total prescribed dose to target volume was 49 to 70 Gy.Results:The planning target volume(PTV) was enclosed by 95% isodose line,median homogeneity index(HI) was 1.158.The average dose to the organs at risk(OAR) were underdosed 50% of TD5/5.Conclusions:IMRT can protect the critical organs with little radiotherapentic response.

关 键 词：鼻咽肿瘤 肿瘤/放射疗法 调强适形放射治疗 

分 类 号：R739.63[医药卫生—肿瘤]