动态容积CT对椎基底动脉扩张延长症的诊断价值

发布时间：2018-03-28 02:13

本文选题：脑动脉疾病　切入点：体层摄影术　出处：《中国临床医学影像杂志》2017年08期

【摘要】：目的:探讨动态容积CT"中风一站式"检查对椎基底动脉扩张延长症(VBD)的诊断价值。方法:收集经动态容积CT诊断的VBD患者共22例(男16例、女6例,年龄39~79岁),在后台工作站上测量各例患者的基底动脉(BA)最大内径,进行BA高度评分和位置评分,并通过全脑灌注分析软件分析后循环区脑血流灌注状态。结果 :22例VBD患者的BA最大内径平均为(6.12±1.73)mm(范围3.9~10.1 mm),BA的高度评分、位置评分分别为2.32±0.48、2.32±0.78(范围1~3)。增强CT及全脑灌注分析示22例VBD中11例出现后循环灌注异常(占50%),主要表现为不同程度对比剂达峰时间(TTP)延长,严重者还伴有平均通过时间(MTT)缩短、局部脑血流量(r CBF)增加及脑梗死灶的出现。后循环灌注异常组的BA位置评分、BA内径与灌注表现正常组之间有显著性差异(Mann-Whitney U检验,P0.05)。结论:对于VBD患者,动态容积CT一站式检查能全面评价椎基底动脉形态的异常和后循环脑组织的灌注状态。
[Abstract]:Objective: to evaluate the diagnostic value of dynamic volume CT "stroke one stop" in the diagnosis of vertebrobasilar artery dilatation prolongation (VBDD). Methods: a total of 22 patients (16 males and 6 females) with VBD diagnosed by dynamic volume CT were collected. The maximum diameter of BA was measured on the backstage workstation, and BA height and position score were evaluated. Results the mean maximum diameter of BA in 22 patients with VBD was 6.12 卤1.73 mm (range 3.9 卤10.1 mm). The location scores were 2.32 卤0.48v 2.32 卤0.78 (range 1: 3). Ct and whole brain perfusion analysis showed that 11 of 22 cases of VBD had abnormal posterior circulation perfusion (50%), mainly manifested by the prolongation of the peak time of contrast agent (TTP), and the shortening of mean transit time (MTT) in severe cases. There was a significant difference between the BA location score and the normal perfusion performance in the posterior circulation perfusion group. Conclusion: for the patients with VBD, there is a significant difference between the internal diameter of BA and the normal perfusion performance. Conclusion: for the patients with VBD, there is no significant difference between the BA location score and the normal perfusion performance. Conclusion: there is no significant difference between the results of Mann-Whitney U test and that of the patients with VBD. Dynamic volume CT can be used to evaluate the abnormal morphology of vertebrobasilar artery and the perfusion state of posterior circulation brain tissue.
【作者单位】：中国人民解放军武汉总医院放射影像科;
【分类号】：R743.3;R816.1

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