近年来,随着CT广泛应用,使之已成为腰椎间盘脱出诊断的主要方法。国内外文献对CT诊断优越性报道较多,对其漏诊原因探讨较少,本文收集2年来我院经手术证实椎间盘脱出患者133例,结合文献对CT漏诊原因进行了探讨。1 材料和方法1.1 病例选择 取自1997年2月～1998年12月,CT检查并经手术证实的病例133例,其中男79例,女54例,年龄20～74岁。1.2 CT扫描方法 采用美国产GE8800型CT机、取层厚、间隔各为5mm,扫描层面与椎间隙平行,每个椎间隙扫描3～4层,常规检查 In recent years, with the widespread use of CT, making it the main method of diagnosis of lumbar disc prolapse. There are many reports on the superiority of CT diagnosis both at home and abroad, and few studies on the causes of misdiagnosis. In this paper, 133 cases of disc herniation confirmed by operation in our hospital in the past two years were collected. 1 Materials and Methods 1.1 Case Selection From February 1997 to December 1998, 133 cases of CT examination and surgery confirmed cases, including 79 males and 54 females, aged 20 to 74 years. 1.2 CT scan method using the United States GE8800 CT machine, take the layer thickness, the interval of 5mm, the scan level parallel to the intervertebral space, each disc scan 3 to 4 layers, routine examination