脑分水岭梗死的临床研究

目的探讨脑分水岭梗死(CWI)的类型和临床特点。方法分析238例经头颅CT或磁共振成像(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81例,占34.0%,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、智能减退等症状。皮层后型92例,占38.6%,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、情感淡漠为主要表现。皮层下型65例,占27.3%,病灶在大脑中动脉皮层支和深穿支的边缘带,常位于侧脑室额角后外方和基底节区,呈长条状、三角形。结论脑分水岭梗死的临床表现复杂,诊断主要依据头颅CT、MRI。

Cerebral watershed infacts

Objective To investigate the clinical types and characteristics of cerebral watershed in facts(CWI).Methods Analysis of the clinical data and imaging characteristics of 238 cases CWI confirmed by CT scan or MRI.Results In 81 cases(34.0%),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,transcortical motor aphasia and dementia.In92 cases(38.6%),infarcts also appeared as wedge-shaped areas on CT or MRI,but located at marginal zones between the middle cerebral arteries and posterior cerebral arteries,the patient mailnly showed mild hemiparesis,hemianopia and apathy.In 65 cases(27.3%),the long-line or triangle shaped infarcts areas usually located at marginal zones between the superficial and deep territory of the middle cerebral arteries in the basal ganglia and posterolat eral angulus frontalis.Conclusion The presentation of CWI is complicated,and the diagnosis of that mainly depends on imaging studies such as CT scan and MRI.