多发梗塞性痴呆和阿尔采默氏痴呆的脑 CT 改变及认知障碍对比研究

Multi-infarct dementia and dementia of Alzheimer's type:Changes in brain CT and cognitive impairments

本文对28例多发梗塞性痴呆(MID)患者和25例阿尔采默氏痴呆(DAT)患者的脑CT 改变及认知障碍特点进行了对比研究。结果发现,MID 患者脑室周围低密度改变的比率(82%)显著高于 DAT 组患者(36%)。而 DAT 组患者的脑沟较 MID 组的显著增宽。MID 组患者第三脑室扩大与智能损害严重程度呈显著正相关。MID 患者的智能损害不完全,可保留某方面的能力致疾病严重阶段。

Changes in brain CT and cognitive impairments were studied in 28 patients ofmulti-infarct dementia (MID) and 25 patients with dementia of Alzheimer′s type (DAT)。The resultsshowed that low attentuation of Periventricular white matter was found in 82% MID,significantly higherthan that in DAT (36%)。However cerebral sulci of the DAT patients was observed much broader thanthat of the MID patienst.The enlargement of third ventrical was associated with the severity of dementia inMID patients。In a comparison of cognitive impairment between MID and DAT,the patients of MID re-mained some degree of cognitive function even untill their last stage of illness。