面神经瘤的高分辨CT和MRI诊断

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。

Imaging Diagnosis of Facial Nerve Neuroma

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.