后循环缺血患者脑血管病变的特点  

Features of cerebrovascular lesions in patients with posterior circulation ischemia

作　　者：张利丽[1] 张丽[1] 陈天风[2] 顾华[3] 李继民[1] 魏宝杰[3] 

机构地区：[1]南京医科大学附属脑科医院老年神经科,210029 [2]首都医科大学附属北京朝阳医院神经内科 [3]首都医科大学附属北京朝阳医院影像科

出　　处：《临床神经病学杂志》2011年第5期375-377,共3页Journal of Clinical Neurology

摘　　要：目的探讨后循环缺血患者脑血管病变的特点。方法对74例后循环缺血患者进行CT血管成像(CTA)检查,分析血管病变的部位、性质和程度。结果本组74例后循环缺血患者中61例(82.4%)被CTA证实有血管病变。其中,血管动脉粥样硬化病变8例(10.8%),血管狭窄38例(51.4%),血管纤细22例(29.7%),血管发育不良12例(16.2%)。单纯前循环血管病变7例(9.5%),单纯后循环血管病变21例(28.4%),前后循环均有血管病变例33例(44.6%);前循环血管病变以颈内动脉颅外段狭窄为主,后循环血管病变以椎动脉颅外段和大脑后动脉病变最为多见;前、后循环血管病变狭窄程度均以重度为主。结论后循环缺血患者的主要血管病变部位在椎动脉颅外段和大脑后动脉,其次为颈内动脉颅外段;最常见的病变性质是动脉粥样硬化和血管狭窄,且以重度狭窄最为多见。Objective To investigate the features of cerebrovascular lesions in patients with posterior circulation ischemia（PCI）.Methods CT angiography（CTA） was detected in 74 PCI patients,and the location,nature and extent of the vascular lesions were analyzed.Results There were 61 cases（82.4%） with vascular disease proved by CTA.In which,the vascular atherosclerosis were 8 cases（10.8%）,the vascular stenosis were 38 cases（51.4%）,the vascular slender were 22 cases（29.7%） and the vascular dysplasia were 12 cases（16.2%）;the purely anterior circulation lesions were 7 cases（9.5%）,the purely posterior circulation lesions were 21 cases（28.4%） and the vascular lesions with anterior circulation and posterior circulation were 33 cases（44.6%）;the main anterior circulation lesion was extracranial internal carotid artery stenosis,and the main posterior circulation lesions were lesions in the ectracranial vertebral artery and posterior cerebral artery;the stenosis degree was most severe in the vascular lesions with anterior circulation and posterior circulation.Conclusions The main locations of vascular lesions in PCI patients are ectracranial vertebral artery and posterior cerebral artery,and then is extracranial internal carotid artery.The main natures of vascular lesions in PCI patients are vascular atherosclerosis and vascular stenosis,and the severe degree is the most.

关 键 词：后循环缺血 脑血管病变 CT血管成像 

分 类 号：R743.3[医药卫生—神经病学与精神病学]