大脑中动脉粥样硬化性脑梗死患者多模态磁共振成像及临床特征研究

Multimodel MRI and clinical features of patients with middle cerebral arteriosclerotic infarction

目的探讨大脑中动脉粥样硬化性脑梗死患者多模态MRI特点和临床特征及其可能的发病机制。方法选取大脑中动脉粥样硬化性脑梗死患者60例,全部病例均经头颅MRI及磁共振血管造影术证实为单侧大脑中动脉粥样硬化性狭窄或闭塞,并根据MRI脑梗死灶特征进行梗死分型。结果深穿支梗死患者20例中,单发梗死14例,多发梗死6例;皮质支梗死患者14例中,单发梗死8例,多发梗死6例;分水岭梗死患者26例中,单发梗死12例,多发梗死14例。结论大脑中动脉粥样硬化性脑梗死多模态MRI患者中,以分水岭梗死最常见,其次为深穿支梗死和皮质梗死。

Objective To study the characteristics of multimodal MRI and clinical features of pa tients with middle cerebral arteriosclerotic infarction and its possible pathogenesis. Methods Six ty middle cerebral arteriosclerotic patients with middle cerebral arteriosclerotic infarction established as unilateral cerebral arteriosclerotic stenosis or occlusion by transcraniat MRI and MR angiography were included in this study. Their cerebral infarction was calssified according to the characteristics of MRI. Results Of the 20 patients with deep branch infarction,14 were diagnosed with single infarction and 6 were diagnosed with multiple infarction. Of the 14 patients with corti- cal branch infarction,8 were diagnosed with single infarction and 6 were diagnosed with multiple infarction. Of the 26 patients with watershed infarction, 6 were diagnosed with single infarction and 14 were diagnosed with multiple infarction. Conclusion Watershed infarction occurs most frequently followed by deep branch infarction and cortical branch infarction in patients with mid- dle cerebral arteriosclerotic infarction.