Diagnostic Value of Magnetic Resonance Tomographic Angiography with 3.0T Scanner Trigeminal Neuralgia and Hemifacial Spasm
10.3969/j.issn.1002-1671.2010.01.006
- VernacularTitle:3.0T磁共振断层血管成像对三叉神经痛和面肌痉挛血管神经压迫的诊断价值
- Author:
Feiyan ZENG
;
Xiang PENG
;
Yi LIU
;
Yongqiang YU
- Publication Type:Journal Article
- Keywords:
MR tomographic angiography;
trigeminal neuralgia;
hemifacial spasm
- From:
Journal of Practical Radiology
2010;26(1):21-23
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the diagnostic value of magnetic resonance tomographic angiography(MRTA) with 3.0T scanner for neurovascular compression in patients with trigeminal neuralgia and hemifacial spasm.Methods MRTA using three-dimensional time-of-flight(TOF) sequence was performed in 52 cases with trigeminal neuralgia and 9 cases with hemifacial spasm.MR oblique sagittal and coronal images were created to display the relationship between trigeminal and facial nerves and surrounding vessels,and compared with that of operation MRA showed that.Results In 52 cases with trigeminal neuralgia,the trigeminal nerves were compressed by vessels or contacted with vessels in 46 cases at MRTA,and in 9 cases with hemifacial spasm,all trigeminal nerves showed having vascular compression or in contact with vessels.The accuracy,sensitivity and specificity of MRA in diagnosing trigeminal neuralgia and hemifacial spasm caused by vascular compression were 90.2%,96.4% and 80%,respectively,which compared with that of operation.Conclusion MRTA is sensitive to neurovascular compression,which plays an important role in diagnosing trigeminal neuralgia and hemifacial spasm.
