3D-FIESTA-C联合3D-TOF-MRA序列在面肌痉挛微血管压迫的诊断价值

目的评价3D-FIESTA-C联合3D-TOF-MRA序列在诊断原发性面肌痉挛微血管压迫的应用价值。方法回顾性分析经微血管减压术(MVD)的84例原发性面肌痉挛患者的影像学资料,所有患者均采用3D-FIESTA-C和3D-TOF-MRA序列扫描,以MVD手术结果为金标准,对比分析3D-FIESTA-C、3D-TOF-MRA序列及序列组合对面肌痉挛责任血管的显示能力。结果与MVD术中结果对照分析显示,3D-FIESTA-C检出责任血管70例,其阳性率83.3%;3D-TOF-MRA序列检出责任血管68例,其阳性率81.0%。3D-FIESTA-C联合3D-TOF-MRA序列共检出责任血管79例,其阳性率94.0%;面肌痉挛责任血管的种类以小脑前下动脉(48.8%,41/84)和小脑后下动脉(26.2%,22/84)为主。结论3D-FIESTA-C联合3D-TOF-MRA序列应用能有效提高对原发性面肌痉挛责任血管的显示。

The diagnostic value of 3D-FIESTA-C combined with 3D-TOF-MRA imaging for neurovascular compression in patients with hamificial spasm

Objective To evaluate the value of showing the responsible blood vessels for neurovascular compression in patients with hamificial spasm by 3D-FIESTA-C and 3D-TOF-MRA sequences.Methods The imaging data of 84 patients with hamificial spasm were analyzed retrospectively.After MRI examination of 3D-FIESTA-C with 3D-TOF-MRA,all of the patients underwent micro-vascular decompression(MVD).Taking surgical results as the gold stands,comparative analysis was performd to display the abitity of the responsible blood vessels by 3D-FIESTA-C and 3D-TOF-MRA sequences in patients with hamificial spasm.Results Compared with surgical results,3D-FIESTA-C showed presence of the responsible blood vessels in 70 cases with a positive rate of 83.3%.3D-TOF-MRA showed presence of the responsible blood vessels in 68 cases with a positive rate of 81.0%.And 79 cases were found when combining both 3D-FIESTA-C and 3D-TOF-MRA sequences,with a positive rate of 94.0%.The main offending vessels were anterior inferior cerebellar artery(48.8%,41/84)and posterior inferior basilar artery(26.2%,22/84).Conclusion The 3D-FIESTA-C combined with 3D-TOF-MRA sequences application can increase the display of responsible blood vessels in patients with hamificial spasm.