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目的探讨脑分水岭梗塞（ＣＷＩ）的类型、病变部位及临床特点。方法回顾性分析１１５例经头颅ＣＴ证实的幕上ＣＷＩ患者的临床资料及影像学改变。结果其中皮层前型３９例（３３．９％），病灶在大脑前动脉与大脑中动脉皮层支的边缘带，呈楔形，临床表现为偏瘫、偏身感觉障碍、经皮层运动性失语等。皮层后型４２例（３６，５％），病灶在大脑中动脉与大脑后动脉皮层支的边缘带，临床表现为视野缺损、经皮层感觉性失语、皮层型感觉障碍、轻偏瘫等。皮层下型３４例（２９．６％），病灶在大脑中动脉皮层支与深穿支的边缘带，位于基底节及侧脑室旁，临床表现为偏瘫、偏身感觉障碍，优势半球病变可有言语障碍等。结论ＣＷＩ的临床表现复杂，诊断主要依据ＣＴ或ＭＲＩ。
Objective To investigate the types, lesions and clinical features of cerebral watershed infarction (CWI). Methods The clinical data and imaging changes of 115 cases of supratentorial CWI confirmed by skull CT were retrospectively analyzed. Results Among them, 39 cases (33.9%) were cortical anterior. The lesions were located at the marginal zone of anterior cerebral artery and middle cerebral artery. They were wedge-shaped. The clinical manifestations were hemiparesis, hemifacial sensation, transthetic aphasia and so on. There were 42 cases (36.5%) of cortical posterior subcortical lesions in the marginal zone of cortical branch of middle cerebral artery and posterior cerebral artery. The clinical manifestations were visual field defect, percutaneous sensory aphasia, cortical sensory disturbance and hemiparesis. Subcortical type in 34 cases (29.6%), the lesion in the middle cerebral artery cortex branch and the deep perforating marginal zone, located in the basal ganglia and lateral ventricle, the clinical manifestations of hemiplegia, partial sensory dysfunction, the dominant hemisphere lesions may have Speech disorders and so on. Conclusions The clinical manifestations of CWI are complex and the diagnosis is mainly based on CT or MRI.