MR扫描技术对面听神经及三叉神经血管压迫的诊断价值

摘要

Objective To evaluate the diagnostic value of three-dimensional RST technique in patients with surface auditory and trigeminal nerve vascular compression.Methods Retrospective analysis was carried out on the MRI performance of 30 patients with surface auditory and trigeminal nerve vascular compression and caused corresponding clinical symptoms.Using T2-TSE3D-RSTTRA MR scanning technique to analyze cerebellopontine angle(CPA) area of 30 patients, to evaluate the relationship between the nerve and vascular.MR manifestations and operative identification of 30 patients were compared retrospectively.Results 30 patients could be found one or more corresponding liability vessels.Statistical results of the symptomatic and asymptomatic side were significant different(P＜0.01).With the operation founding as the gold standard, the sensitivity and specificity of T2-TSE3D-RSTTRA were respectively 92％ and 100％ in diagnosing 30 cases of vascular segment and cranial nerve compression.Conclusion MR thin-layer technique is of clinical significance in etiological diagnosIs and operatIonal therapy of surface auditorv nerve syndrome and prosopalgia due to vascular compression.%目的 探讨磁共振(MR)扫描技术对面听神经及三叉神经血管压迫的诊断价值.方法 回顾性分析30例临床确诊面听神经及三叉神经血管压迫的MR资料,应用T2-TSE3D-RST-TRA技术分析桥小脑角区面听神经及三叉神经与周围血管的关系,并与手术结果进行对照.结果 30例患者症状侧均可找到1条或多条相应责任血管,统计学结果显示症状侧与无症状侧血管压迫比较差异有统计学意义(P<0.01).以手术结果为金标准,MR T2-TSE3D-RST-TRA对30例患者血管神经压迫诊断的敏感性为92%,特异性为100%.结论 MR T2-TSE3D-RST-TRA扫描技术对血管压迫所致面听神经综合征及三叉神经痛的病因诊断和手术治疗有临床意义.