Application value of 3D-T1W-mDIXON combined with 3D-T2W-DRIVE in evaluation of unilateral vascular compressive hemifacial spasm
10.3969/j.issn.1673-9701.2025.09.005
- VernacularTitle:3D-T1W-mDIXON 联合 3D-T2W-DRIVE 在单侧血管压迫性面肌痉挛中的应用
- Author:
Panpan LIU
1
;
Jinming YAN
1
;
Hao ZHANG
1
Author Information
1. 徐州市中医院放射科,江苏徐州 221000
- Publication Type:Journal Article
- Keywords:
Hemifacial spasm;
Unilateral vascular compression;
Magnatic resonance imaging;
Microvascular decompression
- From:
China Modern Doctor
2025;63(9):20-23,41
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the application value of three-dimensional T1-weighted multi-echo DIXON(3D-T1W-mDIXON)with three-dimensional T2-weighted driven imaging with variable excitation(3D-T2W-DRIVE)in unilateral vascular compressive hemifacial spasm(HFS),and to improve the accuracy of preoperative imaging diagnosis of microvascular decompression(MVD).Methods The clinical and imaging data of 235 patients with unilateral vascular compressive HFS treated with MVD from July 2018 to August 2024 in Xuzhou City Hospital of Traditional Chinese Medicine were analyzed retrospectively.Before MVD,3D-T1W-mDIXON and 3D-T2W-DRIVE sequence image,multiplanar reconstruction were used to analyze the spatial walking relationship between facial nerve and offending vessels.The differences between the affected side and the healthy side were compared,and then compared with the MVD;By using paired chi square test,image result of 3D-T1W-mDIXON combined with 3D-T2W-DRIVE sequence with either sequence alone were compared to evaluate the superiority of two combined sequences in the diagnosis of vascular compressive HFS.Results Among 235 cases HFS on the affected side,there were 149 cases of vascular compression and 68 cases with specific neurovascular contacts,and 15 cases with dubious contacts,with a positive rate of 92.34％;In the 235 cases HFS of the healthy side,there were 21 cases of vascular compression and 25 cases with specific neurovascular contacts,and 77 cases with dubious contacts,with a positive rate of 19.57％.By using the findings during facial nerve MVD procedure as the gold standard,the positive rate of diagnosing HFS using 3D-T1W-mDIXON combined with 3D-T2W-DRIVE sequence was 92.34％.The ability of 3D-T1W-mDIXON combined with 3D-T2W-DRIVE sequence to identify offending vessels(92.34％)is superior to using 3D-T1W-mDIXON sequence alone(83.00％,x2=9.52,P＜0.05)or using 3D-T2W-DRIVE sequence alone(86.38％,x2=4.30,P＜0.05).Conclusion 3D-T1W-mDIXON combined with 3D-T2W-DRIVE sequence image can clearly show the relationship between facial nerve and peripheral blood vessels,and the diagnostic efficacy is higher than that of any sequence alone,can provide better imaging evidence for clinical diagnosis and treatment of HFS.
