Methods To tubo-tempanography by spiral CT scanning,auditory endoscopic were performed in 323 patients for obstruction of eustachian tube.

• 方法对用常规方法检查有咽鼓管阻塞的323例患者,在耳内镜+显像系统下行咽鼓管造影、高分辨螺旋CT扫描。