Willis环变异与交通动脉瘤发生的相关性研究  

Relationship between the variation of Willis circle and the occurrence of communicating artery aneurysm

作　　者：刘艳杰[1] 陈月芹[1] 王皆欢[1] 孔维惠[1] 靳峰[1] 王小强[1] LIU Yanjie;CHEN Yueqin;WANG Jiehuan;KONG Weihui;JIN Feng;WANG Xiaoqiang(Department of Radiology,Affiliated Hospital of Jining Medical College,Jining 272000,P.R.China)

机构地区：[1]济宁医学院附属医院影像科

出　　处：《医学影像学杂志》2019年第10期1633-1636,共4页Journal of Medical Imaging

基　　金：山东省济宁市科技发展计划项目[编号:济科字(2016)56号-105]

摘　　要：目的探讨Willis环变异与交通动脉瘤发生的相关性。方法采用双源Flash CT血管成像技术,回顾性分析102例交通动脉瘤患者的临床及影像学资料,同期行颅脑CTA检查未见交通动脉瘤的患者42例作为对照组,观察交通动脉瘤的形态以及Willis环变异特点。结果前交通动脉瘤(ACoAA)、后交通动脉瘤(PCoAA)患者中Willis环变异率分别为69.2%、72%,对照组为45.2%;其中ACoAA组中大脑前动脉A1段变异率61.5%,PCoAA组中大脑后动脉P1段变异率48%,而对照组中分别为14.3%、23.8%;以上各组间比较均有显著性差异(P<0.05)。另外ACoAA组中,右侧Al段发育变异的发生率明显高于左侧(P<0.01)。结论Willis环变异与交通动脉瘤的发生存在一定的相关性,特别是大脑前动脉A1段和大脑后动脉P1段的变异。同时,还发现了Willis环的一些少见变异。Objective To investigate the relationship between the variation of the Willis circle and the occurrence of communicating artery aneurysms.Methods The clinical and imaging materials of 102 patients with communicating artery aneurysms were analysed retrospectively.42 patients without communicating aneurysms were as a control group.The form of communicating artery aneurysms and the variation of the Willis circle were analyzed.Results The variation rate of Willis circle was 69.2%and 72%in ACoAA/PCoAA group,respectively.The control group was 45.2%.Unilateral Al segment dysplasia or absence was 61.5%in ACoAA.48.0%existed FTP in PCoAA,but only 14.3%and 23.8%in the control group.There were significant differences between groups(P<0.05).There was a significant difference of the variation of A1 segment between the left and right side incidence(P<0.01).Conclusion The variation of Willis circle was related to the occurrence of communicating artery aneurysm,especially the A1 segment of the anterior cerebral artery and the P1 segment of the posterior cerebral artery.Meanwhile,some rare variations of Willis circle had been found.

关 键 词：交通动脉瘤 WILLIS环 体层摄影术 X线计算机 

分 类 号：R732.2[医药卫生—肿瘤] R814.42[医药卫生—临床医学]