目的 对比分析CT和MRI对腔隙性 脑梗死(lacunar infarction，LAC)的诊 断价值。方法 选择2012年1月至2014年7 月在我院神经内科接受治疗的LAC病患178 例。将MRI检查结果记为观察组，相应的 CT检查记为对照组。对比两组检查的病 灶部位、大小情况，并对1个月后复检病 患进行MRI检查同时记录病灶情况。结果 MRI共检出1770个病灶，CT组共检出420个 病灶。MRI检出的总数是CT检出总数的4.2 倍。并且MRI组对于病灶≤5mm的检出率明 显高于CT组而6-15mm的检出率相对更低。 最后对复检病患根据首次检查大小分组发 现病灶呈现明显的缩小，其中最为显著的 是≥11mm的病患，差异均有统计学意义(P ＜0.05)。结论 LAC病患在首次检查病灶 出现的频率很高，多为≤5mm。其中MRI检 出病灶的总数明显高于CT检出总数，且 MRI对≤5mm病灶检出有明显的优势。而在 发病初期出现水肿情况，需要准确、及时 的诊断保证后期治疗。因此，MRI更具有 临床应用价值。

Objective To explore the computer tomography (CT) and magnetic resonance imaging (MRI) of lacunar infarction (LAC) the diagnosis results, and analyze the diagnostic value of CT. Methods From January 2012 to July 2014 treated in our hospital department of internal medicine nerve with 178 cases of LAC patients. With MRI was as the observation group, CT checked the corresponding note was for the control group. The location, the size of the examination of two groups were compared, and 1 months after the re examination of patients were examined by MRI and recorded lesions. Results MRI was detected in 1770 lesions, 420 lesions were found in CT group. Total was CT MRI detectable detectable in total 4.2 times. And group MRI for lesions than 5mm detection rate was significantly higher than that of group CT and 6-15mm detection rate was relatively lower. At the end of the re examination of patients according to the first check size packet found lesions showed obvious reduction, the most significant one was the aged patients with 11mm. The differences were statistically significant (P<0.05). Conclusion LAC patients in the first lesions appear frequently, more than 5mm. The total number of lesions detected by MRI is higher than that of CT and MRI on the detection of the total, less than 5mm lesions have obvious advantages. But in the early stage of the disease appeared in water, which need accurate diagnosis, timely to ensure the late treatment, MRI has more clinical value.