MRI对早期阿尔茨海默病的诊断及其进展
摘要
阿尔茨海默病(alzheimer’s disease,AD)是最常见的痴呆症之一,占痴呆总人数的50%~70%[1]。AD于1960年由Alzheimer医生首次提出,它是以记忆损害、进行性认知功能障碍为特征的中枢神经系统退行性疾病,是以神经斑和神经元纤维缠结沉积、基底前脑胆碱神经元丢失为主要病理改变。近几年来,多数学者认为内嗅区皮层才是AD最早受累部位。研究发现内嗅区皮质是神经元纤维缠结最初发生的地方,并且缠结的密度与痴呆的严重程度成正相关旧。
出处
《影像诊断与介入放射学》
2013年第6期454-456,共3页
Diagnostic Imaging & Interventional Radiology
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