摘要
脑微出血是指从脑小血管漏出的血液形成含铁血黄素在血管周围的沉积,在磁敏感加权成像上呈现出直径2~5 mm圆形或卵圆形(非线形)病变,常出现于皮质、皮质下白质、基底节等部位。相关研究表明脑微出血会增加认知能力下降或痴呆的风险,也会增加脑卒中的发病率和病死率。鉴于此,本文对脑微出血的表现、流行病学、相关危险因素及发病机制等进行综述。
Cerebral microbleeds(CMBs)refers to the formation of hemosiderin deposits around the blood vessels by the blood leaking from the cerebral small blood vessels.On the magnetic susceptibility weighted imaging(SWI),the lesions with a diameter of 2-5 mm circular or ovoid(rather than linear)usually appear in cortex,subcortical white matter,basal ganglia and other parts.Studies have shown that CMBs increase related risks refering to cognitive decline or dementia,and increase incidence and mortality of stroke.In view of this,the article reviews the performance,epidemiology,related risk factors and mechanism of CMBs.
作者
牛天童
许保磊
刘广志
牛敬忠
Niu Tiantong;Xu Baolei;Liu Guangzhi;Niu Jingzhong(Department of Neurology,Beijing Anzhen Hospital,Capital Medical University,Beijing 100029,China;Department of Neurology,the Second Affiliated Hospital of Shandong First Medical University,Shandong Province,Tai'an 271000,China)
出处
《中国医药》
2021年第1期145-148,共4页
China Medicine
基金
国家自然科学基金(81870951)。
关键词
脑微出血
危险因素
脑卒中
Cerebral micrbleeds
Risk factors
Cerebral apoplexy
