我院近3年来共收治小脑型遗传性共济失调患者16例,全部进行了CT脑扫描诊断。除2例未见明显阳性改变外,余14例均显示出明显的小脑萎缩性变化。主要阳性改变有以下几方面: 1.小脑半球和/或蚓部脑沟增宽,在CT片上清晰可见。 2.第四脑室扩大。 3.小脑及脑干周围脑池扩大,如回叠体池、上蚓池、桥小脑脚池、桥池等均可扩大。 4.部分病例可合并大脑萎缩。 CT扫描为本病的诊断和鉴别提供了客观依据。 In the recent 3 years, our hospital treated 16 patients with cerebellar ataxia ataxia, all of which were diagnosed by CT brain scan. In addition to 2 cases no significant positive changes, the remaining 14 cases showed significant changes in cerebellar atrophy. The main positive changes in the following areas: 1. cerebellar hemispheres and / or vermis increased sulci, CT chip clearly visible. 2. Fourth ventricle expansion. 3. cerebellum and brainstem around the brain pool to expand, such as the back pool body pool, earthworm pond, cerebellopontine foot pool, bridge pool, etc. can be expanded. 4. Some cases may be associated with brain atrophy. CT scan for the diagnosis and identification of the disease provides an objective basis.