面神经瘤的高分辨CT和MRI诊断

Imaging Diagnosis of Facial Nerve Neuroma

摘要: 目的:探讨高分辨CT和MRI对不同类型面神经瘤的诊断价值。方法:回顾性分析18例资料完整的颞骨面神经瘤患者的多排螺旋高分辨CT和MRI影像,所有患者均行多排螺旋CT扫描和高分辨、多平面重建及MRI平扫和增强扫描。结果:检出18例面神经肿瘤,11例为面神经鞘瘤、5例为面神经纤维瘤、2例为面神经血管瘤。结论:多排螺旋HRCT和MRI在面神经瘤诊断中,HRCT在显示骨破坏细节方面极佳,而增强MRI对面神经瘤本身的显示优于多排螺旋HRCT,二者优势互补,应根据患者具体情况合理选择。

Abstract: Objective: To investigate the valve of diagnosis in imaging findings of facial nervetumors in the CT and MR.Methods: CT and MRI findings in 18 cases with pathologically-proved facial nerve neuromas were analyzed retrospectively.Results: All of 18 cases were detected(11/18 facial neuroma,5/18 facial neurofibroma and 2/18 facial hemangioma).Conclusions: HRCT and MRI are effective methods in detecting the lesions of f acial nerve.CT is better to demonstrate the osseous destruction in detail,and CE-MRI is easier to find small facial nerve lesions intracranially.Combined application of CT and MRI can improve the he diagnostic accuracy.