皮层下动脉硬化性脑病影像学表现

目的：总结皮层下动脉硬化性脑病（ＳＡＥ）临床、影像学表现及诊断要点。方法：对临床资料完整并经ＣＴ扫描的３３０例（其中５４例加磁共振成像）进行分析。结果：进行性智能障碍是ＳＡＥ的主要临床表现，ＣＴ显示脑内白质区多发低信号灶，ＭＲＩ表现为长Ｔ１、长Ｔ２异常信号灶，同时合并多发腔隙性脑梗死和脑萎缩。结论：ＣＴ平扫结合临床是ＳＡＥ最简便有效的诊断手段，ＭＲＩ能更敏感的显示合并的脑内细小梗死灶。

Imaging Diagnosis on Subcortical Arteriosclerotic Encephalopathy

Objective:To make a summary on the manifestation and imaging diagnostic points on subcortical arteriosclerotic encephalopathy(SAE).Method:Three hundred and thirty cases had been evaluated with complete clinical data and CT scan, 54 cases had been evaluated by MRI.Results:Progressive intelligence obstacle was the main clinical manifestation on SAE. CT scan showed multiple hypodence lesions in the cerebral white matter, which were long T 1 and long T 2 signal in MRI. Beside, Lacunar infarction and cerebral atrophy could be found in these patients. Conclusion:The combination of noncontrast CT scan with clinical manifestation was the most simple and effective diagnostic method on SAE .MRI was more sensitive to find lacunar infarction in the brain stem and cerebellum.