近来 ,有研究显示头颈肿瘤患者放疗后有感音神经性听力减退 ,但目前 ,制订放疗计划时尚未着重考虑避免内耳结构照射 ,也未常规分析内耳结构所受剂量。本研究选 15例 或 期头颈鳞癌患者 ,在综合治疗期间均接受全程标准放疗 (180 c Gy/天 )。病灶部位包括口咽、鼻咽、口腔、下 Recently, studies have shown that patients with head and neck tumors have sensorineural hearing loss after radiotherapy. However, at present, no plans have been made to avoid inner ear structure irradiation when formulating radiotherapy plans, nor has routine analysis of the dose of inner ear structures been performed. In this study, 15 patients with head and neck squamous cell carcinoma were enrolled and received standard radiotherapy (180 cGy/day) during the comprehensive treatment period. Lesion sites include oropharynx, nasopharynx, oral cavity, and lower