面神经畸形的影像表现  

The radiological manifestations of facial nerve malformation

作　　者：迟放鲁[1] 黄一波[1] 靳楷[1] 顾峻[1] 黄婷[1] 顾瑛[1] 沙炎[1] 

机构地区：[1]复旦大学附属眼耳鼻喉科医院耳神经颅底外科,上海200031

出　　处：《中华耳科学杂志》2011年第2期124-127,共4页Chinese Journal of Otology

基　　金：国家十一五支撑项目(耳微创技术及神经血管保护和修复研究)资助编号:2007BAI18B14

摘　　要：目的介绍面神经畸形的影像学表现。方法 (1)采用螺旋CT进行颞骨多平面重组扫描,在轴位、冠状位、面神经层面进行观察,对面神经在中耳乳突的走行进行分析。(2)术中采用面神经监护仪确认畸形的面神经。结果术前CT扫描可以事先观测到面神经的畸形,主要表现为无面神经骨管、面神经悬挂在中耳腔、面神经覆盖卵圆窗等。结论术前颞骨螺旋CT多平面重组扫描可以提高面神经畸形诊断的准确性。Objective To introduce the imaging appearances of facial nerve malformation. Methods （1） Spiral CT was performed with multiplanar reformation on temporal bone and observations were carried out on axial, coronal or reformated facial nerve sections, which could help us make analysis of the course of the facial nerve within middle ear and mastoid. （2） Aberrant facial nerve was then confirmed by intraoperative facial nerve monitoring. Results Malformations of facial nerve could be previously observed by preoperative spiral CT scan, which were shown mostly as absence of bony canal, facial nerve suspended within the middle ear cavity, facial nerve covering oval window, et al. Conclusion Accuracy of diagnosis of facial nerve malformation can be improved by spiral CT with multiplanar reformation of temporal bone before microsurgery.

关 键 词：面神经 畸形 螺旋CT多平面重组扫描 面神经监护 

分 类 号：R764.9[医药卫生—耳鼻咽喉科] R814.42[医药卫生—临床医学]