【摘要】 目的 评价弥散加权磁共振成像(diffusion-weighted magnetic resonance imaging，DWI)和磁共振血管成像(mag-netic resoance angiography，MRA)对急性脑梗死的临床应用价值。 方法 对56例临床拟诊急性脑梗死患者在头颅CT、常规MRI的基础上行DWI和MRA检查，根据影像学结果进行卒中分型，选择治疗方案。 结果 对超早期急性脑梗死，DWI可显示常规MR T 2 WI不能显示的病灶，MRA则能快速发现血管闭塞的部位或狭窄程度。 结论 DWI与MRA联合检查可同时显示脑实质和脑血管情况，为脑卒中的分型、早期溶栓治疗提供了切实可行的影像学资料。

    关键词 急性脑梗死 弥散加权磁共振成像 磁共振血管成像

    Application of diffusion-weighted magnetic resonance imaging and magnetic resonance angiography to the diagnosis of acute cerebral infarction

    Tao Qingling，Zhao Hui，Sun Xuan，et al.

    Department of Neurology，Shanghai Changning District Central Hospital，Shanghai200336.

    【Abstract】 Objective To explore the value of diffusion-weighted magnetic resonance imaging(DWI)and magnetic resoance angiography(MRA)for the clinical significance in acute cerebral infarction in the early stage.Methods The results of DWI and MRA and traditional CT and routine MRI in56patients with acute cerebral infarc-tion were analyzed and applied to stroke subtype diagnosis and therapy.Results Ultra-acute cerebral infarction could be shown on DWI ......