对４００例经ＣＴ诊断的脑梗塞病人进行分析。腔隙性脑梗塞３２０例（８０％），共检出４７７个病灶，其中基底节内囊区腔隙性脑梗塞２７１例（８４．７％），丘脑１５例（４．７％），胼胝体３例（０．９％），脑干３例（０．９％），脑叶（前叶、后叶、顶叶、颞叶、额叶）２８例（８８％）。基底节内囊区腔隙性脑梗塞的ＣＴ表现为单发或多发的圆点形、小楔形、条形低密度影，边缘大部分较清楚，无占位效应。基底节内囊区腔隙性脑梗塞的病理学基础是脑内深穿动脉，属终末动脉，血管纤细，无侧支循环，该区的低血压、低血流灌注是血栓形成的基础 400 cases of cerebral infarction diagnosed by CT were analyzed. A total of 477 lesions were detected in 320 cases (80%) of lacunar infarcts, including 271 (84.7%) lacunar infarcts in the basal ganglia, 15 (4.7%) in the thalamus, 3 cases (0.9%), 3 cases of brain stem (0.9%), 28 cases (88%) of cerebral lobe (anterior lobe, posterior lobe, parietal lobe, temporal lobe, frontal lobe). Basal ganglia lacunar infarction CT showed single or multiple dot-shaped, small wedge, bar-shaped low-density shadow, the edge most of the more clear, no placeholder effect. The basal ganglia lacunar infarction pathology is based on deep penetrating intracerebral arteries, the terminal artery, stenosis, collateral circulation, the area of ​​hypotension, low perfusion is the basis of thrombosis