高分辨率计算机断层扫描在揭示创伤性面神经麻痹患者面神经管骨折中的准确性。

Accuracy of high-resolution computed tomography in revealing fallopian canal fracture of patients with traumatic facial paralysis.

作者信息

Yan Chun, He Benhong, Wang Xingzheng, Qin Zhong, Li Yefeng, Peng Yongli

机构信息

Department of Otolaryngology, Lichuan National Hospital of Traditional Chinese Medicine, Lichuan 445400, PR China.

Department of Otolaryngology, Lichuan People's Hospital, Lichuan 445400, PR China.

出版信息

Auris Nasus Larynx. 2015 Oct;42(5):374-6. doi: 10.1016/j.anl.2015.03.003. Epub 2015 Apr 28.

DOI:10.1016/j.anl.2015.03.003

PMID:25933586

Abstract

OBJECTIVES

To investigate accuracy of high-resolution computed tomography (HRCT) of temporal bone in revealing fallopian canal fracture among the patients with traumatic facial paralysis.

METHODS

HRCT of temporal bone with cross-sectional scanning and multi-planar reformation (MPR) was performed on 31 patients with traumatic facial paralysis, and fracture sites of fallopian canal revealed by HRCT were retrospectively analyzed and compared with surgical findings.

RESULTS

HRCT of temporal bone showed fracture of fallopian canal at geniculate ganglion in 25 cases, at tympanic segment in 15 cases, at labyrinthine segment in 5 cases, at pyramid segment in 2 cases, and at mastoid segment in one case, while surgical findings revealed that fracture involved geniculate ganglion in 27 cases, labyrinthine segment in 5, tympanic segment in 19, pyramid segment in 12, and mastoid segment in 9; the sensitivity of HRCT of temporal bone to detect fracture at such sites was 88.9%, 100%, 52.6%, 16.7% and 11.1%, respectively, and the specificity was 96.0%, 100%, 66.7%, 100% and 100%, respectively.

CONCLUSION

HRCT of temporal bone was able to accurately reveal fracture of fallopian canal at geniculate ganglion and labyrinthine segment in the vast majority cases, but severely underestimated fracture at pyramid segment and mastoid segment of fallopian canal.

摘要

目的

探讨颞骨高分辨率计算机断层扫描（HRCT）在揭示创伤性面瘫患者面神经管骨折方面的准确性。

方法

对31例创伤性面瘫患者进行颞骨HRCT横断面扫描及多平面重建（MPR），回顾性分析HRCT显示的面神经管骨折部位，并与手术结果进行比较。

结果

颞骨HRCT显示膝状神经节处面神经管骨折25例，鼓室段15例，迷路段5例，锥段2例，乳突段1例；而手术结果显示骨折累及膝状神经节27例，迷路段5例，鼓室段19例，锥段12例，乳突段9例；颞骨HRCT检测这些部位骨折的敏感度分别为88.9%、100%、52.6%、16.7%和11.1%，特异度分别为96.0%、100%、66.7%、100%和100%。