CT血管成像诊断颅内动脉成窗变异与血管异常  

Diagnosis of fenestration variation of intracranial artery and vascular anomalies with CT angiography

作　　者：张丽萍[1] 唐秉航[1] 李良才[1] 何亚奇[1] 吴任国[1] 

机构地区：[1]中山大学附属中山医院CT室,广东省528403

出　　处：《中国脑血管病杂志》2014年第10期531-535,共5页Chinese Journal of Cerebrovascular Diseases

摘　　要：目的探讨CT血管成像(CTA)诊断颅内动脉成窗变异及合并其他血管异常。方法回顾性分析2013年1月—2014年1月中山大学附属中山医院653例经头部CTA检查,并诊断为颅内动脉成窗的39例患者的影像资料,分析颅内动脉成窗的发生率、部位、形态及其他血管异常。结果 (1)653例患者共检出39例(5.97%)41个成窗动脉,其中基底动脉成窗检出率3.37%(22个),椎动脉成窗检出率0.31%(2个),大脑前动脉成窗检出率1.22%(8个),前交通动脉成窗检出率0.61%(4个),大脑中动脉成窗检出率0.76%(5个)。后循环成窗以凸透镜型为主(66.67%,16/24),前循环成窗以裂隙型为主(76.47%,13/17),差异有统计学意义(χ2=7.411,P<0.05)。(2)39例中22例成窗患者合并其他血管异常,以单侧或双侧胚胎型大脑后动脉最多(10例),其次为颅内动脉瘤(5例)。5例动脉瘤部位均远离成窗部位,位于颈内动脉交通段3例、基底动脉顶端1例、双侧大脑中动脉M2段1例。结论 CTA可以直观、清晰地显示颅内动脉成窗及合并其他血管异常,但血管成窗与血管异常之间无显著相关性。Objective To investigate the diagnosis of intracranial artery fenestration and its other vascular anomalies with CT angiography （CTA）. Methods The image data of 653 patients examined with head CTA and 39 patients diagnosed as intracranial artery fenestration in Zhongshan Hospital Affiliated to Sun Yat-sen University from January 2013 to January 2014 were analyzed retrospectively. The incidence, location, morphology of intracranial artery fenestration, and other vascular anomalies were analyzed. Results （ 1 ） In 653 patients,39 （5.97%） with 41 artery fenestrations were detected. The detection rates of basilar artery fenestration was 3.37 % （ n = 22）, vertebral artery fenestration was 0.31% （ n = 2）, anterior cerebral artery fenestration was 1.22% （n = 8）, anterior communicating artery fenestration was O. 61% （n =4）, and middle cerebral artery fenestration was 0.76% （n = 5 ）, respectively. The post-circulation fenestration was mainly convex lens type （66.67% , n = 17 ） , the anterior-circulation fenestration was mainly fissure type （ 76.47%, n = 24 ） , and there was significant difference （X2 = 7.411, P 〈 0.05 ）. （2） In the 39 patients ,22 complicated other vascular anomalies. Most of them were unilateral or bilateral fetal-type posterior cerebral arteries （ n = 10 ）, and followed by aneurysms （ n = 5）. The locations of 5 aneurysms were far from the fenestration ,3 located in the communicating segment of internal carotid artery, 1 in the top of basilar artery, and 1 in the M2 segment of bilateral middle cerebral arteries. Conclusion CTA can intuitively and clearly reveal the intracranial artery fenestration and other vascular anomalies. But there is no significant correlation between arterial fenestration and vascular anomalies.

关 键 词：血管造影术 脑血管障碍 体层摄影术 x线计算机 脑动脉成窗 

分 类 号：R816.2[医药卫生—放射医学]