鼻咽癌是我国南方地区较常见的恶性肿瘤,以广东省为最高发[1],放射治疗是最主要的治疗手段[2]。放射治疗质量取决于放射治疗中摆位精确性、重复性的实施。我科从2003-03-2007-08共收治初治鼻咽癌448例,使用常规放射治疗方式,取得了较好的效果。1临床资料1.1一般资料本组男336例 Nasopharyngeal carcinoma is a common malignancy in southern China, Guangdong Province is the highest incidence [1], radiation therapy is the most important treatment [2]. The quality of radiation therapy depends on the accuracy and repeatability of radiotherapy. Our department from 2003-03-2007-08 treated a total of 448 cases of nasopharyngeal carcinoma, the use of conventional radiotherapy, and achieved good results. 1 Clinical data 1.1 General Information The group of male 336 cases