MRI诊断双侧基底节区对称性分水岭脑梗死  

Magnetic resonance imaging in diagnosis of symmetrical cerebral watershed infarcts of bilateral basal ganglia

作　　者：陈武标[1] 李凯[1] 吴永峻[1] 

机构地区：[1]广东医学院附属医院磁共振室,广东湛江524001

出　　处：《广东医学院学报》2003年第4期339-341,共3页Journal of Guangdong Medical College

摘　　要：目的 :探讨双侧基底节区对称性分水岭性脑梗死 (CWI)的病因与机理、MRI特征。方法 :回顾性分析 12例经MRI及临床证实的双侧基底节区对称性CWI的临床资料及MRI表现。结果 :12例的病因中以严重低血压及低血容量为主 ,MRI表现为双侧基底节区对称性T1WI为低 ,T2 WI为高信号 ,信号均匀 ,占位不明显 ,加强扫描无强化。结论 :双侧基底节区对称性CWI病因主要为严重低血压及低血容量。MRI能较早及敏感地显示其变化 ,其与一些好发于基底节区病变的MRI表现相似 ,鉴别时须结合临床资料。Objective:To investigate the etiology,pathogenesis and magnetic resonance imaging (MRI) characteristics of symmetrical cerebral watershed infarcts (CWI) in bilateral basal ganglia.Methods:Clinical data and imaging characteristics of 12 cases with symmetrical CWI in bilateral basal ganglia were retrospectively analyzed.Results:The main cause was severe hypotension or hypovolemia,Imaging characteristics included low T1 WI,high T2 WI,homogeneous signal intensity and lack of enhancement in bilateral basal ganglia.Conclusion:The main cause of symmetrical CWI in bilateral basal ganglia was severe hypotension or hypovolemia.MRI is able to find some of the early changes,but the differential diagnosis of that has to depend on clinical data.

关 键 词：基底节 分水岭脑梗死 磁共振成像 

分 类 号：R743.33[医药卫生—神经病学与精神病学]