High resolution CT in evaluation of anatomic relationship between labyrinth segment of facial canal and cochlea
10.13929/j.1003-3289.201709016
- VernacularTitle:高分辨CT观察面神经管迷路段与耳蜗的解剖关系
- Author:
Heyu DING
1
;
Pengfei ZHAO
;
Han LYU
;
Xuehuan LIU
;
Peng ZHANG
;
Zheng WANG
;
Mei JIN
;
Hao WANG
;
Zhenghan YANG
;
Shusheng GONG
;
Zhenchang WANG
Author Information
1. 首都医科大学附属北京友谊医院放射科
- Keywords:
Facial nerve;
Cochlea;
Dissection;
Tomography,X-ray computed
- From:
Chinese Journal of Medical Imaging Technology
2018;34(3):331-334
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of high resolution CT (HRCT) in displaying the anatomic relationship between labyrinth segment of facial canal and cochlea.Methods Totally 110 patients (220 ears) who underwent HRCT were collected.The original images were transferred to workstation for image processing.MPR images were acquired.The anatomic relationship between labyrinth segment of facial canal and cochlea was observed in oblique coronal MPR images.The bony septum between labyrinth segment of facial canal and cochlea was assessed as definite defect (Type Ⅰ),doubtful defect (Type Ⅱ) or complete (Type Ⅲ),respectively.Results There were 71 ears (71/220,32.27％) of Type Ⅰ,diameters of bone fissure ranged from 0.3-1.3 mm (average diameters [0.64±0.26]mm),86 ears (86/220,39.09％) of Type Ⅱ and 63 ears (63/220,28.64％) of Type Ⅲ,with bony septum thickness ranged from 0.3-1.0 mm (average thickness [0.68±0.15]mm).No statistical difference of rates of the above three types was found between different genders,among age groups and between both side of ears (all P＞0.05).Conclusion HRCT is a reliable method to show the anatomic relationship between labyrinth segment of facial canal and cochlea.
