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机构地区:[1]浙江中医药大学附属金华中医院放射科,浙江金华市321017 [2]康复医学科 [3]上海交通大学医学院附属第九人民医院神经内科
出 处:《中华医学杂志》2012年第47期3358-3360,共3页National Medical Journal of China
基 金:金华市科技重点科研项目(2009-3-044)
摘 要:目的小血管梗死(SVI)与大动脉病变的关系存在争论,基于弥散加权成像(DWI)的SVI与基于对比剂增强磁共振血管成像(CEMRA)评估大血管病变之间关系的相关研究少见,本研究旨在通过观察经DWI证实的急性颈动脉流域SVI病例的CEMRA改变,分析SVI与大血管病变的关系。方法收集2009年9月至2012年2月间在浙江中医药大学附属金华中医院60例首次发病的非心源性急性前循环脑梗死病例,其中符合腔隙综合征临床表现,且经DWI证实的急性单灶SVI病例纳入观察组,符合部分前循环和全前循环脑梗死病例作为对照组,在病情允许的情况下行CEMRA检查,评估颈动脉流域的大血管病变,颅外大血管狭窄分为5级(0%;〈30%;30%一69%;I〉70%;100%),颅内大血管病变分为4级(0%;〈50%;≥50%;100%);同时评估颈动脉斑块性质。结果入选60例患者中,单灶SVI组(28例,47%)病灶侧颈动脉颅外血管狭窄发生率(36%)稍高于非SVI组(32例,25%)(P=0.54),单灶SVI组颈动脉颅内血管狭窄发生率(32%)稍低于非SVI组发生率(47%)(P=0.52)。完成斑块扫描的46例患者中(77%),单灶SVI组病灶同侧颈动脉斑块的发生率(44%)高于非SVI组发生率(35%)(P=0.76);单灶SVI组稳定斑块发生率(17%)高于非SVI组发生率(13%),单灶SVI组易损斑块发生率(26%)高于非SVI组(22%)(P=0.73)。结论前循环单灶性SVI与临床符合部分前循环梗死和全前循环梗死的非心源性脑梗死病例比较,大血管病变发生率相似,这一结果需要通过更大样本量的前瞻性研究进一步验证。Objective Whether small vessel infarction (SVI) correlates with large arterial lesion is under debate. The aim of the present study was to analyze the relationship between the single SVI in carotid territory by diffusion weight imaging (DWI) and arterial lesion by contrast enhanced magnetic resonance angiography (CEMRA). Methods Sixty patients with acute cerebral infarction underwent DWI within 7 days and CEMRA within 2 weeks after onset. They were divided into 2 groups of patients with and without single SVI. The clinical and magnetic resonance image features were compared between two groups. Results Lesions of ipsilateral extracranial carotid artery were detected in 10 patients of SVI groups (36%) versus 8 patients (25 % ) of non-SVI group (P = 0. 54). Incidence of intracranial vascular lesion in single SVI group (32%) was slightly lower than that of non-SVI group (47%) (P = 0. 52 ). And 46 patients (77%) were assessed on plaque of carotid artery. Incidence of ipsilateral carotid artery plaque (44%) was higher in single SVI group than that of non-SVI group (35%) (P =0. 76). And the incidence of vulnerable plaque in single SVI group (26%) was similar to that of non-SVI group (22%) (P = 0. 73 ). Conclusion SVI has not a single underlying mechanism of stroke. However, further studies with a large number of patients are waranteed.
分 类 号:R743.3[医药卫生—神经病学与精神病学]
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