53例小脑梗死临床及磁共振影像特点分析

Analysis of clinical manifestations and magnetic resonance imaging features of 53 patients with cerebellar infarction

目的:探讨小脑梗死的临床表现及磁共振(MRI)影像学特点。方法:对我院53例小脑梗死患者进行临床及MRI影像学资料分析。结果:本组38例(71.69%)患者临床表现为眩晕,17例(32.07%)缺乏神经系统阳性定位体征。头颅CT诊断阳性率为22.64%,而头颅MRI诊断阳性率为100.00%。35例(71.69%)小脑梗死累及小脑后下动脉(PICA)供血区。49例行磁共振血管造影(MRA)检查患者中有35例(71.42%)存在椎基底动脉(VBA)血管狭窄或闭塞。结论:本组小脑梗死主要临床表现为眩晕,约30%的患者缺乏神经系统阳性定位体征,临床易误诊,头颅MRI对于小脑梗死早期诊断优于头颅CT,梗死区域最常累及PICA供血区。

Objective： To investigate the clinical manifestations and magnetic resonance imaging（MRI） features of cerebellar infarction.Methods： Clinical data and MRI data of 53 patients with cerebellar infarction in our hospital were analyzed.Results： 38 patients（71.69%） showed the clinical manifestation of vertigo,and 17 patients（32.07%） lacked neurological signs of positive orientation.The positive rate of cranial CT diagnosis was 22.64% while that of cranial MRI diagnosis was 100.00%.Cerebellar infarction of 35 patients（71.69%） involved the PICA blood supply area.35 cases（71.42%） of the 49 patients receiving routine MRA tests had hemadostenosis or vascular occlusion.Conclusion： The main clinical manifestation of cerebellar infarction of this group is vertigo.About 30% of the patients lack neurological signs of positive orientation which are easily misdiagnosed.Cranial MRI is better than cranial CT in the early diagnosis of cerebellar infarction.The most frequently involved infarction area is the PICA blood supply area.