磁共振T_1WI-3D-FFE成像对原发性面肌痉挛的诊断价值

The value of MRI T_1WI-3D-FFE in the diagnosis of hemifacial spasm

目的分析磁共振T_1WI-3D-FFE序列显示脑池段面神经神经及其周围血管,探讨其在面肌痉挛诊断中的应用价值。方法收集80例临床诊为原发性面肌痉挛患者行T_1WI-3D-FFE序列扫描,评价其显示患侧面神经与责任血管的效果,。结果 80例面肌痉挛患者图像得分2分29例、3分51例,其中患侧发现神经血管压迫77例,阳性率为96. 25%,健侧发现面神经根部存在血管接触或压迫11例,阳性率为13. 75%; MR T_1WI-3D-FFE成像评估面肌痉挛患者神经血管压迫敏感度为87. 3%、特异度为83. 9%。结论 T_1WI-3D-FFE成像能同时显示脑池段面神经周围血管,是诊断面神经血管压迫性病变的可靠方法。

Objective： Analysis of MRI T1WI-3D-FFE sequence according to brain pool section of facial nerves and its peripheral blood vessels, explore its value in the diagnosis of henfifaeial spasm. Methods： Collecting 80 eases of clinically diagnosed as primary henfifaeial spasm patients scanning with T1WI-3D-FFE sequence, evaluate its display effect of facial nerves and blood vessels. Results： 80 patients with facial spasm scored 2 points 29 eases ,3 points 51 eases ,and 77 eases of nerve vascular compression with henfifaeial spasm, positive rate was 96. 25%, The eontralateral facial nerve roots are found vascular contact or oppression in 11 eases, positive rate was 13.75%. MR T1WI-3D-FFE imaging evaluation of patients with hemifacial spasm nerve vascular compression, the sensitivity was 87. 3% and specificity was 83.9%. Conclusion：T1 WI-3D-FFE imaging can also clear display facial nerve of brain pool section and its surrounding blood vessels, is a reliable method for diagnosing facial nerve vascular compression.