脑分水岭梗死CT、MRI与病因研究

目的:探讨脑分水岭梗死的CT、MRI表现及其与病因之间的关系,为脑分水岭梗死的防治提供依据。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、病因和影像学改变。结果:双侧脑分水岭梗死14例,占30.4％,其中皮层前型4例,皮层下型10例,主要病因为低血压,低血压伴颈动脉狭窄;单侧脑分水岭梗死32例,占67.39％,其中皮层前型14例,皮层后型15例,皮层下型3例,主要病因为颈动脉狭窄、糖尿病、低血压及血液流变学异常。结论:双侧脑分水岭梗死主要病因为低血压或低血压伴颈动脉狭窄;单侧脑分水岭梗死主要病因为颈动脉狭窄、糖尿病、低血压、血液流变学异常及血脂异常等,为脑分水岭梗死的预防和治疗提供依据。

Objective: To investigate the relationship between the causes and characteristics of CT scan and MRI imaging of cerebral watershed infarctions(CWI) Methods:Analysis of the clinical data causes and imaging characteristics of 46 cases CWI confirmed by CT scan and MRI Results :In 14 cases of bilateral CWI (30. 43%) 4 cases are precortical and 10 cases are subcortical The main causes are hypotension In 32 cases of unilateral CWI (67. 39%) 14 cases are precortical 15 cases are postcortical and 3 cases are subcortical The main causes are carotid artery stenosis diabetes hypotension and abnormal blood rheology ConclusionThe main causes of bilateral CWI are hypertension hypertension and carotid artery stenosis while the main causes of unilateral CWI are carotid artery stenosis diabetes hyotension and heperlipidemia It provide the evidence for prevent and treatment