皮质下动脉硬化性脑病的CT诊断(120例报告)

CT Diagnosis of Subcortical Arteriosclerotic Encephalopathy

分析120例SAE的临床表现及CT改变。材料与方法：120例中男75例，女45例，年龄范围54～95岁SAE患者的临床表现与CT改变，联系病理改变进行研究。结果：临床表现主要表现为智力减退、神经精神障碍、下肢无力及行走障碍、偏瘫及高血压。CT主要改变为沿侧脑室周围低密度呈多发斑片状或弥漫性、相互融合成片状或月晕状，边界不清，多为双侧对称分布，少数为基本对称分布，以两侧脑室额角周围最易受累且最早出现，以前外方居多，其次为放射冠，侧脑室三角区及枕角周围、半卵圆中心。多伴有脑萎缩及脑梗塞。结论：脑动脉硬化患者定期CT检查，早期治疗并控制血管硬化程度的进展，SAE的防治有重要意义。

Purpose:To describe 120 cases of the clinical manifestation and CT findings of SAE. Materials and Methods: According to circumstances which include 120 cases (75 men and 45Women, age ranging from 54~ 95 years) of the clinical manifestation and CT change, and his-tologic, We analyze them. Results: The clinical features were mainly the intelligence decre-ment, mental disturbances, dyskinesia, hemiplegia and hypertension. The CT image present-ed multi-shaped lumps or pieces in low density around the lateral ventricles of the brain.These pieces sometimes mixed together and formed like a lunar halo without distinct edges.Most of them were distributed symmetrically on both sides. The front eminence was the firstarea to be affected, and then the corona radiata, the lateral ventricles, the trigone, around theoccipital angle and the intracapsular area. Encephalatrophy and cerebral infarction were oftenthe concomitant symptoms. Conclusion: Regular CT examinations are necessary for the pa-tients with cerebral arteriosclerosis. It is of great significdnce in the prevention of SAE.