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本文就45例老年皮质下动脉硬化性脑病(Subcortical Arteriosclerotic Encephalopathy,SAE)的CT所见、临床表现及相关性进行分析。其主要CT表现为:双侧脑室周围白质片状或灶状低密度区,有64.4％呈对称分布于双侧半球,重者波及放射冠。病灶边界欠清,无增强和占位表现.脑梗塞(主要为腔隙样)和脑萎缩是本病常见的重要征象.偏瘫的主要原因是脑梗塞。本病出现痴呆多见于脑梗塞,尤其是多发脑梗塞者。脑萎缩以白质为主,可能为白质深穿小动脉粥样硬化,白质营养不良所致.
In this paper, 45 elderly patients with subcortical arteriosclerotic encephalopathy (SAE) CT findings, clinical manifestations and correlation analysis. The main CT manifestations: white matter around the bilateral ventricular mass or focal low-density area, 64.4% were symmetrically distributed in the bilateral hemispheres, severe cases of radiation coronatus. The lesion border is not clear, no enhancement and placeholder performance.Cerebral infarction (mainly lacunar) and brain atrophy is an important and common sign of this disease.The main reason of hemiplegia is cerebral infarction. The disease more common in cerebral infarction dementia, especially those with multiple cerebral infarction. Brain atrophy mainly white matter, may be white matter deep penetration of atherosclerosis, white matter caused by malnutrition.