目的 分析MRI在听神经鞘瘤术 前评估中的应用价值并总结MRI表现。方 法 以我院2011年1月-2015年11月期间收 治54例听神经鞘瘤疑似患者进行分析，均 行MRI检查与CT检查，比较两组诊断符合 率，并总结听神经鞘瘤MRI检查的影像表 现。结果 MRI检查的敏感性、符合率均为 100%，分别高于CT的83%、85%，差异有统 计学意义(P＜0.05)。结论 MRI在听神经 鞘瘤临床诊断中的应用具有较高敏感性， 可通过内听道长度的评估判定病变程度， 利于术前评估，应用价值大。

Objective To analyze the application value of MRI in preoperative evaluation of acoustic neurilemomas and summarize the MRI findings. Methods 54 cases of patients with suspected acoustic schwannoms treated in our hospital from January 2011 to November 2015 were analyzed. All patients underwent MRI and CT examination. The diagnostic accordance rates in the two groups were compared. The MRI findings of acoustic neurilemomas were summarized. Results The sensitivity and accordance rate of MRI (100%) were respectively higher than those of CT (83%, 85%) (P<0.05). Conclusion MRI has high sensitivity in the diagnosis of acoustic neurilemomas. The pathologic degree can be decided through evaluating the length of internal auditory canal, which is beneficial to preoperative evaluation and the application value is great.