The Study of the Facial Nerve Canal Abnormalities in the Congenital External Auditory Canal Atresia by MSCT CPR
- VernacularTitle:多层螺旋CT曲面重建在先天性外耳道闭锁中面神经管异常的研究
- Author:
Rui YAN
;
Jiping DONG
;
Wende NING
;
Junle YANG
;
Xiangchun YANG
- Publication Type:Journal Article
- Keywords:
external auditory canal;
atresia;
facial nerve canal;
tomography ,X-ray computed
- From:
Journal of Practical Radiology
2001;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the facial nerve canal (FNC) abnormalities of the congenital external auditory canal (EAC) atresia by MSCT curved planar reformation (CPR).Methods 15 cases(17 ears) of congenital EAC atresia were scanned by MSCT. Post-processing images were completed by Philips Mx8000 workstation.Results In 17 ears, there were 2 ears with stenosis of EAC, 2 ears with membranous atresia of EAC and 13 ears with bony atresia of EAC.There were 1 ear with congenital cholesteatoma, 3 ears with malformation of tympanum, 7 ears with malformation of the ossicular chain and 1ear with malformation of inner ear. In 17 ears with abnormalities of FNC, included 11 ears with the shortness of FNC general length, 5 ears with the anomalous course of FNC, 9 ears with the displacement of FNC, 1 ear with the narrowing of FNC and 1 ear with the branch of FNC.Conclusion MSCT CPR of FNC, combined with HRCT axial scan, can clearly show the FNC abnormalities of the congenital EAC atresia and provide valuable information for surgery.
