皮层下动脉硬化性脑病50例MRI分析

本文报道了５０例皮层下动脉硬化性脑病（ＳＡＥ）。认为ＳＡＥ分三度，即轻、中、重度。其主要ＭＲ征象是脑萎缩，侧脑室不同程度扩张，前后角附近的ＭＲ信号异常，腔隙性脑梗塞。其中对本病确诊的特征性ＭＲ表现是侧脑室前后角附近白质内出现长Ｔ＿１和长Ｔ２ＭＲ信号。有些较小的梗塞灶在ＳＥ序列Ｔ＿１加权像上难以发现，而用ＩＲ序列Ｔ１加权像效果则较好。

Subcortical arteriosclerotic encephalopathy:MRI analysis of 50 cases

This article reported 50 cases with subcortical arteriosclerotic encephalopathy(SAE).It was considered that the disease might be shown on MRI to have three degrees:low, moderate andserious degrees. The essential features of MR were encephalatrophy,expansion of lateral ventricle indifferent degrees,abnormal MR signals of anterior horn and posterior horn of lateral ventricle,and la-cunae cerebral infarction. The diagnostic MR manifestations of this disease were abnormal signals oflong T1 and long T2 around white matter of anterior and posterior horn of lateral ventricle. Some small-er infarction lesions were not easily discovered on T1WI with the SE progammer. The IR progammerproved to be more effective.