半卵圆中心急性小梗死的影像学与临床特点分析  

Analysis of Clinical Characteristics and Imaging Features of Acute Small Centrum Ovale Infarction

作　　者：路雅宁[1] 杨志生 刘彩珍[1] 

机构地区：[1]内蒙古包头市第四医院,中国包头014030 [2]内蒙古鄂尔多斯市乌审旗人民医院,中国鄂尔多斯017300

出　　处：《国际老年医学杂志》2013年第6期243-246,共4页International Journal of Geriatrics

摘　　要：目的：脑白质髓动脉闭塞导致的半卯圆中心急性小梗死（Small centrunl ovale infarct，SCOI）是一种腔隙性脑梗死。我们利用弥散加权成像（Diffusion-weighted imaging，DWI）检查探讨SCOI的临床特点并与基底节区小梗死（Small basal ganglia infarct，SBGI）进行比较。方法：我们利用已有的DWI模板根据脑动脉支配区特点把急性脑梗死患者分为SCOI与SBGI两组，分别比较这两组患者性别、年龄、神经系统症状、血管危险因素，以及可能存在心源性栓塞（Potentialsources of cardioembolism，PSCE）和脑梗死病灶同侧大脑中动脉（Middle cerebralartery，MCA）病变。结果：两组的年龄、性别与血管危险因素比较无明显差别，SCOI组患者出现PSCE及MCA发生闭塞的比率较高（P〈0．05），而SBGI组患者出现典型腔隙综合征的情况更多（P〈0．01）。结论：利用DWI明确诊断的SBGI与脑大动脉狭窄或闭塞及心脏病变存在相关性，故其病理机制应与腔隙性脑梗死相鉴别。OBJECTIVE： To explore the clinical characteristics of acute small centrum ovale infarct （SCOI） by diffusion - weighted magnetic resonance imaging （DWI） compared with those of a small basal ganglia infarct （SBGI）. METHODS： The Patients were divided into SCOI group and DWI group acordiug to the identification of middle cerebral artery territories. Sex, age, neurologi- cal symptoms, vascular risk factors, potential sources of cardioembolism （PSCE） , and arterial occlusive disease in the ipsilateral middle cerebral artery （MCA） were compared between the two groups. RESULTS： There were no significantly different in age, sex and vascular risk factors between the two groups. The SCOI group had more frequently PSCE （64. 3% vs23.3% , P =0.02） , occlusive MCA diseases （57.1% vs13.3% , P 〈0. 01 ） , but less frequently a classic lacunar syndrome （50. 0% vs80. 8% , P 〈0. 01 ） than those in the SBGI group. CONCLUSION ： SCOIs detected by DWI may be associated with large - vessel and heart diseases and should be distinguished from lacunar infarcts.

关 键 词：穿支动脉 腔隙性脑梗死 弥散加权成像 发病机制 栓塞 

分 类 号：R743.33[医药卫生—神经病学与精神病学]