神经损伤与功能重建Issue(3)：218-221,4.DOI:10.3870/sjsscj.2014.03.014
脑分水岭梗死 MRI、MRA 特点及其发病机制的研究
Characteristics of MRI and MRA in Patients with Cerebral Watershed Infarction
李支援 1张英 2吕风亚1
作者信息
- 1. 山东省菏泽市立医院 神经内科 菏泽 274000
- 2. 山东省菏泽市立医院 影像科山东 菏泽 274000
- 折叠
摘要
Abstract
ObjectiveTo investigate the features of MRI and MRA in detecting different cerebral watershed in-farction (CWI) patterns. Methods: Eighty-five CWI patients were retrospectively divided into three types including simple CWI, mixed CWI and multiple CWI. The middle cerebral artery (MCA) and internal carotid artery (ICA) stenosis were evaluated in different CWI patterns. Results: There were 6 patients with simple posterior watershed infarction (PWI), 11 patients with simple internal watershed infarction (IWI), 4 patients with mixed anterior water-shed infarction (AWI), 19 patients with mixed PWI, 36 patients with mixed IWI and 19 patients with multiple CWI. Of the 85 patients, the ratio of severe stenosis of MCA was significantly higher than that of ICA ( =0.00). The ratio of severe stenosis of MCA was significantly higher than that of ICA in patients with simple IWI, mixed IWI and multiple CWI ( <0.01). The ratio of severe stenosis of MCA in patients with simple IWI, mixed AWI, mixed IWI and multiple CWI was significantly higher than that in the patients with simple PWI and mixed PWI ( <0.05). Conclusion: Severe stenosis of MCA is more likely to lead CWI than severe stenosis of ICA, especially in patients with IWI, mixed IWI and multiple CWI. Severe stenosis of MAC has a greater effect on CWI of anteri-or circulation (ICA system). Hemodynamic abnormality of the far side in patients with severe stenosis of MCA and the declined ability to eliminate micro-embolus may be of important mechanism.关键词
脑分水岭梗死/磁共振成像/磁共振血管造影/发病机制Key words
cerebral watershed infarction/magnetic resonance imaging/magnetic resonance angiography/mechanism分类
医药卫生引用本文复制引用
李支援,张英,吕风亚..脑分水岭梗死 MRI、MRA 特点及其发病机制的研究[J].神经损伤与功能重建,2014,(3):218-221,4.
