MRI T2WI与3D CE-MRV对横窦内蛛网膜颗粒诊断的对照研究  

MRI T2WI and 3D contrast enhanced magnetic resonance venography in diagnosis of transverse sinus arachnoid granulations:a comparative study

作　　者：李克磊 魏梁锋 吴箭午 范雅操 望家兴 李军[1] 鲜亮 王守森 Li Kelei;Wei Liangfeng;Wu Jianwu;Fan Yacao;Wang Jiaxing;Li Jun;Xian Liang;Wang Shousen(Department of Neurosurgery,900th Hospital of Joint Logistics Team,Bengbu Medical College,Fuzhou 350025,China)

机构地区：[1]蚌埠医学院附属解放军联勤保障部队第九〇〇医院神经外科,福州350025

出　　处：《中华神经医学杂志》2020年第9期947-951,共5页Chinese Journal of Neuromedicine

基　　金：福建省科技计划引导性项目(2018Y0067)。

摘　　要：目的探讨MRI T2WI与三维对比增强磁共振静脉成像(3D CE-MRV)对横窦内蛛网膜颗粒(AG)的诊断价值。方法收集解放军联勤保障部队第九〇〇医院神经外科自2016年1月至2019年4月行MRI常规扫描及3D CE-MRV检查的811例患者的影像学资料,分别记录MRI T2WI、3D CE-MRV能够显示横窦内AG的患者例数,AG的数量、大小、形态及与AG有关的静脉数量。结果MRI T2WI显示184例(22.7%)患者存在242个AG,3D CE-MRV显示119例(14.7%)患者存在138个AG;与3D CE-MRV比较,MRI T2WI显示AG的患者比例较高,差异有统计学意义(P<0.05)。将MRI T2WI检出的242个AG分为3D CE-MRV检出组(138个)和3D CE-MRV未检出组(104个),3D CE-MRV未检出组AG的直径[(5.30±2.10)mm]明显小于3D CE-MRV检出组AG的直径[(6.14±2.03)mm],差异有统计学意义(P<0.05)。MRI T2WI显示圆形或椭圆形AG 231个、分叶形AG 11个,而3D CE-MRV显示圆形或椭圆形AG 138个、分叶形AG 0个。MRI T2WI显示289条静脉与AG关系密切,3D CE-MRV显示97条静脉与AG关系密切;与3D CE-MRV比较,MRI T2WI显示的与AG关系密切非Labbé静脉所占比例较高,差异有统计学意义(P<0.05)。结论与3D CE-MRV相比,MRI T2WI对横窦AG诊断效率更高,能更好地显示AG的形态及与其毗邻的静脉。Objective To explore the diagnostic values of MRI T2WI and 3D contrast enhanced magnetic resonance venography(3D CE-MRV)in transverse sinus arachnoid granulations(AGs).Methods Clinical data were obtained from 811 patients who were subjected to non-contrast MR imaging and 3D CE-MRV between January 2016 and April 2019 in our hospital.And the number of patients whose transverse sinus AGs could be shown by T2WI and MRV,the number,size,and shape of AGs,and the number of AGs-related veins were recorded.Results MRI T2WI showed 242 AGs in 184 patients(22.7%),and 3D CE-MRV showed 138 AGs in 119 patients(14.7%);MRI T2WI had a significantly higher percentage in showing AGs patients as compared with 3D CE-MRV(P<0.05).Two hundred and forty-two AGs showed by MRI T2WI were divided into 3D CE-MRV observation group(n=138)and 3D CE-MRV non-observation group(n=104);the diameter of AGs in the 3D CE-MRV non-observation group([5.30±2.10]mm)was significantly smaller than that in the 3D CE-MRV observation group([6.14±2.03]mm,P<0.05).MR T2WI showed that 231 AGs were like circles or ellipses and 11 AGs were like fractal;while 3D CE-MRV showed that 138 AGs were like circles or ellipses and 0 AG were like fractal.MRI T2WI showed that 289 veins were closely related to AGs,and 3D CE-MRV showed that 97 veins were closely related to AGs.MRI T2WI could demonstrate significantly higher proportion of non-labbe veins which were closely related to AGs than 3D CE-MRV(P<0.05).Conclusion As compared with 3D CE-MRV,T2WI can find larger number of AGs in the transverse sinus,and better display the shape of AGs and the vein adjacent to them.

关 键 词：蛛网膜颗粒 磁共振成像 三维对比增强磁共振静脉成像 横窦 

分 类 号：R743.3[医药卫生—神经病学与精神病学]