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目的探讨大脑中动脉狭窄或闭塞患者的MRI影像上脑梗死模式与临床表现类型特点。方法58例经DSA确诊的大脑中动脉狭窄或闭塞患者,依据头部MRI成像所示梗死灶的特点及临床表现进行分类。结果58例大脑中动脉狭窄或闭塞患者根据影像学分类,深部小梗死最常见,占55.17%,交界区梗死占24.14%,皮层区域内梗死占22.41%,有7例在MRI影像上正常。临床类型分型,部分前循环脑梗死占48.28%,腔隙性脑梗死占22.41%,完全前循环脑梗死占5.17%。结论大脑中动脉狭窄或闭塞患者MRI影像上脑梗死模式以深部小梗死为主;大脑中动脉狭窄或闭塞患者临床表现类型以部分前循环脑梗死为主,亦可仅表现为头晕、头痛或无症状。
Objective To investigate the characteristics of cerebral infarction pattern and clinical manifestations in patients with cerebral artery stenosis or occlusion. Methods Fifty-eight patients with middle cerebral artery stenosis or occlusion diagnosed by DSA were classified according to the characteristics and clinical manifestations of infarction in head MRI. Results According to the imaging classification, 58 cases of middle cerebral artery stenosis or occlusion were the most common, accounting for 55.17%. The borderline infarction accounted for 24.14%. The cortical infarction accounted for 22.41%. Seven cases were normal on MRI. Clinical type, type of anterior cerebral infarction accounted for 48.28%, lacunar infarction accounted for 22.41%, complete anterior circulation infarction accounted for 5.17%. Conclusions The pattern of cerebral infarction on the MRI images of patients with middle cerebral artery stenosis or occlusion is mainly deep small infarction. The clinical manifestations of middle cerebral artery stenosis or occlusion are mainly partial anterior circulation cerebral infarction, and may only appear as dizziness, headache or no symptom.