脑分水岭梗死（Cerebral，CWI）是指两事主要脑动脉供血交界区发生的缺血及梗死，可见于单侧或双侧。血流动力学急剧改变是发病的重要因素。据知其发生率占缺血性脑血管病的8％－53％［门。晚近，由于CY与皿m在临床广泛应用，对其病因及临床特征等方面研究日益增多。本文着重介 Cerebral infarction (Cerebral, CWI) refers to the occurrence of ischemia and infarction at the junction of the two major arterial arteries, and can be seen on one or both sides. Acute hemodynamic changes are an important factor in the pathogenesis. It is known that the incidence of ischemic cerebrovascular disease accounted for 8% -53% [door. Recently, due to the wide application of CY and MR in clinical, its etiology and clinical features are increasingly studied. This article focuses on