中文摘要：

目的通过三例大脑中动脉脑梗死患者影像学演变过程的报道分析,对大脑中动脉脑梗死的病理生理转归特点进行初步的探索。方法本研究以宣武医院2006年12月间收治的三例大脑中动脉脑梗死患者为研究对象,观察、总结其影像学演变的特点,分析大脑中动脉梗死的病理生理过程。结果根据本研究的结果,作者将原发性大脑中动脉梗死、后续出现的脑组织移位和继发性神经结构受损的临床病理生理过程定义为＂大脑中动脉梗死三联征＂。同时,根据继发受损神经结构不同,将该综合征分为三型：即半球型、脑干型和混合型。结论大脑中动脉梗死三联征从一个侧面反映了该区域脑梗死的病理生理转归特点。关于该综合征与患者临床预后的相关关系尚有待于进一步前瞻性研究。

英文摘要：

Objective By reporting the neuroimaging characteristics of three cerebral infarction patients of middle cerebral artery,the authors do some exploration on the pathophysiological feature of ischemic stroke of this territory.Methods Three patients of middle cerebral artery infarction were enrolled in this study.Based on the finding of neuroimaging characteristics of them,the authors analyzed and presumed the pathophysiological course of middle cerebral artery infarction.Results The authors defined the three characteristics of middle cerebral artery infarction,namely primary infarction,subsequent shift of brain tissue and secondary damage,as triad signs of middle cerebral artery infarction.Meanwhile,three subtypes were classified as ＂hemisphere type＂,＂brainstem type＂,and ＂mixed type＂.Conclusion From some aspect,triad signs of middle cerebral artery infarction could reflect the pathophysiological characteristics of middle cerebral artery infarction.But more clinical researches are needed to clarify the relationship between this syndrome and clinical prognosis.