三叉神经痛患者血管压迫MRI表现与手术结果对照研究

目的 分析三叉神经痛患者ＭＲＩ表现，探讨ＭＲＩ对三叉神经痛神经血管压迫的诊断价值。材料与方法 回顾性分析８５例三叉神经痛患者ＭＲＩ表现及手术结果。结果 ８５例三叉神经痛患者共１７０侧脑池段三叉神经ＭＲＩ检查中，５９侧存在三叉神经血管压迫或接触，可疑接触３５侧，其中症状侧有神经血管压迫、接触或可疑接触者为７５例，经统计学分析，三叉神经痛患者症状有无与是否存在血管压迫或接触有显著意义（Ｐ〈０．００１）

Correlative Study of MRI and Operative Results in Trigeminal Neuralgia Associated to Neurovascular Compression

Objective To evaluate MR findings and diagnostic value of neurovascular compression in patients with trigeminal neuralgia.Materials and Methods MR manifestations and operative results of eightyfive patients with trigeminal neuralgia were reviewed retrospectively.Results Fiftynine sides had vascular compression or contact at MR imaging in one hundred and seventy sides of the trigeminal nerve of eightyfive patients with trigeminal neuralgia, thirtyfive sides had uncertain vascular contact. Seventyfive sides showed vascular compression, contact or uncertain contact in these eightyfive sidesrelated symptoms and signs. The difference between the symptomatic sides and asymptomatic sides was statistically significant (P<0.001). Sixtynine symptomatic patients were verified as vascular compression or contact by the operation. The sensitivity and specificity of MR diagnosis of vascular compression or contact was 88.2% and 94.4% respectively, the specificity of MR diagnosis of uncertain vascular contact was 76.2%.Conclusion MR had higher specificity and sensitivity in diagnosing neurovascular compression or contact, it played an important role in demonstrating the relationship of the cisternal portion of the fifth cranial nerve to surrounding vascular structures.