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发生在两条主要脑动脉供血区交界处的一种脑梗死称为脑分水岭梗死（cerebralwatershedinfarcts，CWI）。一般认为系由全身低血压发作、颈内动脉狭窄或闭塞和微栓塞所致，头颅CT可明确显示出病灶的部位和范围。现将我院收治的83例老年人幕上CWI进行回顾性分析。1临床资料1．1一
A type of cerebral infarction that occurs at the junction of two major arterial blood supply areas is called cerebral infarct infiltration (CWI). Is generally believed that due to systemic hypotension, carotid artery stenosis or occlusion and microembolization caused by head CT can clearly show the location and extent of the lesion. 83 cases of elderly patients admitted to our hospital were retrospectively analyzed CWI. 1 clinical data 1.1 one