高分辨CT扫描在耳颞部外伤中的应用

Application of high-resolution CT in temporal bone trauma

目的:探讨高分辨CT(HRCT)在颞骨骨折中的应用价值。方法:颞骨骨折30例,均行横断面薄层(2mm)HRCT扫描作为基础扫描,部分病人同时行冠状扫描。结果:30例(共31耳)中27例均显示颞骨骨折线的存在,纵行骨折19例,横行骨折6例,混合型骨折2例,另3例仅见乳突蜂房积液。听骨链损伤8例,其中,锤砧节脱位5例,砧骨长突骨折2例,砧骨短脚短粗1例。面神经管损伤9例。结论:HRCT是诊断颞骨骨折及并发症的有效方法,对疑有颞骨骨折的病例HRCT应作为常规检查手段。

Objective： To evaluate HRCT in the diagnosis of temporal bone fracture. Methods： 30 cases with temporal bone fracture were involved in the study, which consisted of 21 male and 9 female. Main symptoms are headache, vomiting, otorrhagia, facial paralysis and hearing loss. The patients were done with axial CT as a basic examination and part of them bad the coronal CT at the same time. Results： 27 of 30 patients had fractures, among them 19 were longitudinal,6 were transverse and 2 were complex. The other 3 only show opacification of mastoid air cells. 8 cases had disruption of ossides, eg. dislocation of incudomandibuler joint .fracture of long process of incus, shortening of the short process of incus. The number of facial canal fracture added up to 9 cases.Conclusion： HRCT is a meaning method in diagnosis of temporal bone fracture and its complications, h should be used as routine examination to those who are suspected to have temporal bone trauma.