磁共振血管成像对血管压迫性面肌痉挛的诊断价值

目的:分析神经血管压迫性面肌痉挛患者3D-TOF MRA表现,探讨其临床诊断价值。方法:回顾性分析32例面肌痉挛患者3D-TOF MRA表现与手术结果。结果:32例面肌痉挛患者共64侧面神经,3D-TOF MRA检查发现症状侧血管压迫或接触,经统计学分析,患者症状与是否存在血管压迫或接触有显著性意义(P<0.01)。32例患者症状侧行手术治疗,术中证实均有血管压迫或接触者,3D-TOF MRA诊断血管与手术不符者6例。结论:3D-TOF MRA能清晰显示面神经与毗邻血管之间的关系,对面神经血管压迫或接触的正确诊断具有重要价值,能够为面神经显微血管减压术提供手术依据。

The value contribution of MRA in the diagnosis of angio-compressive facial spasm

Objective:To evaluate 3D-TOF MRA findings and diagnostic value of neurovascular compression in patienrs with facial spasm.Methods:3D-TOF MRA manifestation and operative results of patients with facial spasm were reviewed retrospectively.Results:Thirty-two cases had vascular compression or contact at 3D-TOF MRA imaging in 64 sides of the facial nerve of patients with hemifacial spasm.Thirty-two sides showed vascular compression or contact related symptoms and signs.The difference between the symptomatic sides and asymptomatic sides was statistically significant(P<0.01).Thirty-two symptomatic patients were verified as vascular compression or contact by the operation.Conclusion:3D-TOF MRA had higher specificity and sensitivity in diagnosing of neurovascular compression or contact facial nerve,it played an important role in performing the surgery of microvascular decompression.