Imaging anatomic characteristics of petrosal vein studied by Three-dimensional imaging technology of magnetic resonance
10.3760/cma.j.issn.1671-8925.2010.06.022
- VernacularTitle:磁共振三维成像技术研究岩静脉影像解剖学特征
- Author:
Gui-Hua JIANG
1
;
Shao-Qing ZENG
;
Chu-Lan LIN
;
Yong ZHANG
;
Lian-Bao LIANG
;
Jian-Hao YAN
Author Information
1. 广东省第二人民医院
- Keywords:
Petrosal vein;
Trigeminal nerve;
Magnetic resonance imaging;
Balanced turbo field echo sequence;
Enhanced T1 high-resolution isotropic volume excitation sequence
- From:
Chinese Journal of Neuromedicine
2010;9(6):629-632,637
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the normal anatomy of petrosal vein and the space adjacent relationship between the petrosal vein and the homolateral trigeminal nerve by balanced turbo field echo (B-TFE) Cine-MR imaging and enhanced T1 high-resolution isotropic volume excitation (e-THRIVE)imaging.Methods Forty-one patients with facial spasm and epileptiform neuralgia were selected and taken a scan with ACHIEVA NOVA DUAL A-serial 1.5T MR machine using the BTFE and e-THRIVE series.The space adjacent relationship between the petrosal vein and the trigeminal nerve in cerebellopontine angle were observed.Results The 82 sides of petrosal veins and homolateral trigeminal nerves (41 cases) were displayed well.Petrosal veins were located in cavitas subarachnoidealis,partly in free state; the number of trunk ofpetrosal vein could be 1,2,3,respectively,responding to 70 (86%),10 (12%),2 (2%).The petrosal veins located in the dorsal-lateral of trigeminal nerve were found in 74 sides (37 cases,91%,by BTFE,e-THRIVE series),the petrosal veins located in the ventri-lateral of trigeminal nerve in 6 sides (3 cases,7%,by e-THRIVE series),and the petrosal veins located in the right upon trigeminal nerve in 2 sides (1 cases,2%,by BTFE series).Conclusion B-TFE MR imaging and e-THR/VE imaging,showing the petrosal veins and trigeminal nerves clearly and evaluating their relationship accurately,can provide information of topographic anatomy before microsurgical vascular decompression.
