在手术显微镜下观察了122个成人的圆窗,43.4％未见龛膜存在,属开放型;56.6％有龛膜,并可分为封闭型、穿孔型和网状型三种。使用计算机图象分析系统处理70个颞骨的切片图象并进行测量。讨论了圆窗区域手术中的有关要点。 Under the operating microscope, round window of 122 adults was observed, 43.4% of which were not seen as niche membrane, which was open type; 56.6% had niche membrane and could be divided into three types: closed type, perforation type and reticular type. Seventy temporal bone sections were processed and measured using a computerized image analysis system. Discusses the key points in the round window area surgery.