脑分水岭梗死  

Cerebral watershed infarcts

作　　者：李国前[1] 杨小霞[1] 蔡江萍[1] 姚庆阳[1] 

机构地区：[1]福建省泉州市第一医院神经内科,362000

出　　处：《中华内科杂志》2001年第4期251-253,共3页Chinese Journal of Internal Medicine

摘　　要：目的　探讨脑分水岭梗死（ＣＷＩ）的类型和临床特点。方法　分析１９２例经ＣＴ或磁共振成像（ＭＲＩ）证实的ＣＷＩ临床资料及影像学改变。结果　皮层前型６９例，占３５．９％，病灶在大脑前动脉和大脑中动脉边缘区，呈楔形。临床表现偏瘫、经皮层运动性失语、智能减退等症状。皮层后型７４例，占３８．５％，病灶在大脑中动脉和大脑后动脉边缘区，呈楔形，临床以轻偏瘫、情感淡漠为主要表现。皮层下型４９例，占２５．５％，病灶在大脑中动脉皮层支与深穿支的边缘带，常位于额角后外方和基底节区，呈长条状、三角形。结论　ＣＷＩ的临床表现复杂，诊断主要依据ＣＴ或ＭＲＩ。Objective:To investigate the clinical types and characteristics of cerebral watershed infarcts (CWI). Methods Analysis of the clinical data and imaging characteristics of 192 cases with CWI confirmed by CT scan or MBI. Results In 69 cases (35.9%), CWI appeared as wedge-shaped areas on CT scan or MRI, the infarcts located at marginal zones between the anterior and middle cerebral arteries and were usually associated clinically with hemiparesis, transcortical motor aphasia and dementia. In 74 cases(38. 5%) the infarcts also appeared as wedge-shaped areas on CT scan and MRI, but located at marginal zones between the middle and posterior cerebral arteries, the patients mainly showed mild hemiparesis and apathy. In49 cases (25.5%), the long-line or triangle-shaped infarct areas usually located at marginal zones between the superficial and deep territory of the middle cerebral arteries in the basal ganglia and posterolateral angulus frontalis The presentation of CWI is complicated, and the diagnosis of that mainly depends on imaging studies such as CT scan and MRI.

关 键 词：脑梗塞 磁共振成像 CWI 脑分水岭梗死 CT MRI SPECT 

分 类 号：R743.32[医药卫生—神经病学与精神病学]