MRI T2WI and 3D contrast enhanced magnetic resonance venography in diagnosis of transverse sinus arachnoid granulations: a comparative study
10.3760/cma.j.cn115354-20190926-00556
- VernacularTitle:MRI T2WI与3D CE-MRV对横窦内蛛网膜颗粒诊断的对照研究
- Author:
Kelei LI
1
;
Liangfeng WEI
;
Jianwu WU
;
Yacao FAN
;
Jiaxing WANG
;
Jun LI
;
Liang XIAN
;
Shousen WANG
Author Information
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
- Keywords:
Arachnoid granulation;
Magnetic resonance imaging;
3D contrast enhanced magnetic resonance venography;
Transvers sinus
- From:
Chinese Journal of Neuromedicine
2020;19(9):947-951
- CountryChina
- Language:Chinese
-
Abstract:
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.
