The diagnostic value of high resolution CT in assessment of temporal bone traumatic facial nerve paralysis
10.3969/j.issn.1001-1781.2009.22.002
- VernacularTitle:高分辨率CT对颞骨外伤性面瘫的诊断价值
- Author:
Aikuan GUO
;
Sujuan LI
;
Zhaobing QIN
;
Wei LU
;
Lan JIANG
- Publication Type:Journal Article
- Keywords:
CT scan;
temporal bone fracture;
facial nerve paralysis;
diagnosis
- From:
Journal of Clinical Otorhinolaryngology Head and Neck Surgery
2009;(22):1011-1013
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the diagnostic value of high resolution CT for temporal bone traumatic facial nerve paralysis and the guidance significance for surgery.Method:Twenty-nine patients of traumatic facial nerve paralysis were investigated.The predictive diagnosis was made according to the clinical data and the image features of HRCT,then a comparative analysis of the preoperative image features and the surgical findings were carried out.Result:The trend of temporal bone fracture displayed on the CT scan was basically consisted with the surgical findings.The direct CT signs of facial nerve injury include the bone fracture line went through the tube,bone tube rupture or continuity interruption,while the indirect CT signs include local incrassation of the facial nerve,lower bone density of the tube,geniculate fossa expansion,oppressed facial nerve,et al.The predictive diagnostic accordance rates of all the image features were above 90%as to the surgical findings.Conclusion:High resolution CT could localize the trend of temporal bone fracture,and is helpful to estimate the extent of facial nerve injury and other complications.High resolution CT could provide reliable basis for clinical diagnosis and trotment.
