【摘要】 目的 探讨脑分水岭梗死的类型、临床特点及影像学特点。方法 分析46例经头颅CT或MRI证实的脑分水岭梗死的临床资料和影像学改变。结果 皮层前型18例，占39.13%，病灶在大脑前动脉和大脑中动脉供血交界区，呈楔型，临床表现偏瘫、经皮层性运动性失语、智能减退等。皮层后型15例，占32.61%，病灶在大脑中动脉和大脑后动脉供血的交界区，呈楔型，临床表现为轻偏瘫、偏盲、情感淡漠。皮层下型13例，占28.26%，病灶在大脑中动脉皮层支和深穿支供血的交界区，多位于侧脑室额角后外方和基底节，呈三角形或长条状。结论 脑分水岭梗死临床表现复杂，诊断主要依靠头颅CT、MRI。

    关键词 脑梗塞 脑分水岭梗死 核磁共振成像

    The clinical and CT，MRI research of cerebral watershed infaction

    Yang Hua，Li Zhengyi，Guo Feng，et al.

    Department of Neurology，The First Hospital of Xi′an Jiaotong University，Shaanxi710061.

    【Abstract】 Objective To investigate the clinical types and characteristics of cerebral watershed infarction.(CWI). Methods Analysis of the clinical data and imaging characteristics of 46 cases CWI confirmed by CT scan and MRI. Results In 18 cases(39.13%)，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 clinical with hemiparesis ......