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为研究头颈部肿瘤放射治疗时体位误差 ,笔者回顾性分析了 1999年 11月至 2 0 0 0年 11月拍摄的 15例患者的模拟定位片和放射治疗体位证实片 ,现将结果报道如下。一、材料和方法1.一般资料 :15例经病理证实的头颈部肿瘤患者中鼻咽癌 10例 ,垂体瘤 3例 ,颅内肿瘤 2例。均用面罩固
In order to study the positional errors during radiotherapy of head and neck tumors, the author retrospectively analyzed the simulated positioning radiographs and radiotherapy position confirmation films of 15 patients taken from November 1999 to November 2000. The results are reported below. . I. Materials and methods 1. General information: Among the 15 patients with pathologically confirmed head and neck cancer, 10 were nasopharyngeal carcinoma, 3 were pituitary tumors, and 2 were intracranial tumors. Both masks are used