皮层下动脉硬化性脑病的CT诊断

统计皮层下动脉硬化性脑病81例,结果:全部病例于侧脑室周围以及半卵圆中心白质出现斑片状低密度灶,绝大多数是对称性;87.6％伴有基底节及其周围结构腔隙性脑梗塞,多半病例为多发性 ;96.3％伴有弥漫性脑萎缩,绝大多数为中一重度;少数病例并发脑出血及大面积脑梗塞。分析认为,前一项是本病最为重要的CT表现,应视为诊断本病的必需条件,后三项应认为是本病的重要合并症。

CT diagnosis in SAE

81 cases of SAE, the results (1)all the cases with macular low-density focals around lateral ventricle and central white matter in half-oval, most of them were in symmetry. (2)87. 6% with basal and structural lacuna cerebral infarction, more than half were multiple. (3)96. 3 % with diffuse encephaiatrophy, mostly moderate-severe. (4)small mumber of cases with cerebral hemorrhage and infarction. We think that the first one is the most important CT demonstration of the disease. It must be considered as the essential condition in diagnosing the disease. The Latter three must be consigered as the essential complications.