双源CT血管成像对短暂性脑缺血患者椎基底动脉斑块的分析

摘要

目的 探讨双源CT血管成像技术(DSCTA)对短暂性脑缺血(TIA)患者椎基底动脉斑块的诊断价值. 方法 选取行头颈部DSCTA检查的80例临床诊断为TIA患者,记录患者一般资料,采用多种后处理方法综合分析椎基底动脉有无斑块、斑块性质和管腔狭窄程度. 结果 69例(86.2％)患者共发现斑块152处,其中单侧椎动脉斑块31例共59处(38.9％),双侧椎动脉斑块28例共83处(54.6％),基底动脉斑块10例共10处(6.6％);钙化斑块51处(33.6％),软斑块69处(45.3％),混合斑块32处(21.1％);管腔轻度狭窄31例(44.9％),中度狭窄27例(39.1％),重度狭窄7例(10.1％),闭塞4例(5.8％). 结论 椎基底动脉粥样硬化是TIA发生的常见原因,DSCTA可以较好地对椎基底动脉斑块性质和管腔狭窄程度进行分析,管壁软斑块的形成和管腔严重狭窄易促进TIA发生.%Objective To investigate the diagnostic value of dual-source CT angiography (DSCTA) for vertebrobasilar atherosclerosis in patients with transient ischemia attack (TIA).Methods 80 TIA patients underwent DSCTA.Common data were collected.Vertebrobasilar plaques and stenosis degree were analyzed by using CT reconstruction.Results 152 plaques were found in 69 patients(86.2％,69/80),59 plaques(38.9％,59/152)in unilateral vertebral artery in 31 patients,83 plaques (54.6％,83/152) inbilateral vertebral artery in 28 cases,10 plaques (6.6％,10/152) in basilar artery in 10 patients,among which 51(33.6％,51/152)plaques were hard,69(45.3％,69/ 152)plaques were soft,32(21.1％,32/152)plaques were mixed.There were 31 cases (44.9％,31/ 69) with mild stenosis,27 cases (39.1％,27/69) with moderate stenosis,7 cases (10.1％,7/69) with severe stenosis,and 4 cases (5.8％,4/69) had vascular occlusion.Conclusions Vertebrobasilar atherosclerosis is a common cause of TIA.DSCTA can be used to analyze the vertebrobasilar plaques and stenosis degree.Soft plaques and severe stenosis promote TIA.