摘要
目的探讨基底动脉血栓形成患者磁共振所见脑梗死灶分布情况。方法对17例经磁共振检查和临床表现证实为基底动脉血栓形成的患者进行了磁共振影像研究,所有患者都接受了磁共振T2加权成像、磁共振血管成像、弥散加权成像检查。对患者不同区域的梗死灶数目行数据分析并对梗死区域行叠合处理。结果基底动脉血栓形成后患者的梗死灶常呈多发散在分布,脑桥基底部、中脑基底部、小脑半球为梗死好发区,而丘脑、延髓和枕叶受累相对较少。结论基底动脉血栓形成患者有独特的梗死好发分布范围和形态,这种特征可能与基底动脉的血供解剖相关。
Objective To determine the distribution of infarction lesions in patients with basilar artery thrombosis by means of magnetic resonance imaging （MRI）. Methods In 17 patients with thrombosis of the basilar artery, MRI was performed, including T2-weighted imaging, magnetic resonance angiography （MRA） and diffusion-weighted imaging （DWI） sequences in the shortterm phase （〈48 hours）. The shapes of infarction lesions were obtained by graphic software and overlapped on a representative layer outline background. Results The MRA showed basilar artery occlusion in all cases and the DWI revealed different patterns of infarction lesions. Most patients showed multiple dispersive lesions within the posterior circulation territory. Lesions more often occurred in pontes, cerebellums and mesencephalons than in medullae, thalami and occipital lobes. Conclusions Pontes, cerebellums and mesencephalons are more susceptible to basilar artery thrombosis. The phenomenon that most patients showed multiple and dispersive lesions is thought to be based on the characteristics of posterior circulation.
出处
《中华老年心脑血管病杂志》
CAS
北大核心
2007年第8期541-544,共4页
Chinese Journal of Geriatric Heart,Brain and Vessel Diseases
关键词
基底动脉
血栓形成
脑梗塞
磁共振成像
磁共振血管造影术
basilar artery
thrombosis
brain infarction
magnetic resonance imaging
magnetic resonance angiography
