重视脑分水岭梗死精美讲解
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典型病例(二)
脑内型脑分水岭梗死 (Internal watershed infarcts)
零五零 三零一
男患,五三岁,零五年三月一日急性发病,仅表现为记忆力下降和轻度 言语费力, 右侧肢体轻瘫.MRI呈典型de右侧脑内型分水岭梗死,呈多发 玫瑰花样脑梗死灶( multiple rosary-like infarcts)或雪茄烟样梗死 灶.MRA示左大脑中动脉闭塞, 不同意做DSA检查,三月一四日病情好转 出院.
重视脑分水岭梗死精美讲解
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典型病例(四)皮层后型及脑内型分水岭梗塞:
女患, 七四岁,有高血压病史二零余年,不规则服用降压药. 突发左侧
肢体活动不灵活一天入院,临床表现为脑腔隙综合征 (运动感觉障碍) ,左
侧肢体肌力三-四级. MRA示右MCA M一段主干闭塞(箭头),右大脑后动
重视脑分水岭梗死精美讲解
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脑分水岭区de部位及脑分水岭梗死de类型:
Old watershed infarct
重视脑分水岭梗死精美讲解
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脑分水岭区de部位及脑分水岭梗死de类型:
脑内分水岭区位于ACA、MCA和PCA与Heubner返动脉、豆纹 动脉以及AChA(脉络膜前动脉)供血de交界区.
diffuse intracranial atherosclerotic disease but no area of significant stenosis.
重视脑分水岭梗死精美讲解
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脑分水岭梗死de诊断:
First MRI (TP-一) obtained 八 hours after symptom onset: DWI showed right anterior and posterior borderzone infarcts (arrow) and a small right ACA cortical infarct (notched arrow); analysis of PWI showed prolonged rMTT matching the areas of restricted diffusion;MRA was normal. Follow-up MRI (TP-二) performed 八八 days later showed a left anterior borderzone infarct on T重二视-脑w分ei水gh岭t梗ed死精im美a讲gi解ng and normalization of rMTT20map.