外伤性面瘫的多层螺旋CT研究

目的探讨多层螺旋CT(MSCT)在外伤性面瘫中的应用价值。方法用MSCT对41例外伤性面瘫的颞骨行高分辨率轴面扫描。用Ph ilipsMx8000MSCT工作站,行岩锥感兴趣区的多平面重建(MPR)及面神经管的曲面重建(CPR)。观察骨折类型,骨折线的走行,中耳腔、乳突积血及外耳、中耳、内耳和面神经管的受累情况。结果41例患者中,39例颞骨有不同部位、不同类型的骨折,其中岩骨纵行骨折34例,横行骨折2例,混合型2例,1例岩骨无骨折,但颞骨鳞部骨折,2例未发现骨折。其中2例为双侧岩骨骨折。面神经管的CPR及MPR显示21例患者面神经管受累,9例可见骨碎片。结论MSCT扫描及重建技术能清晰显示面神经管的全貌及其损伤,对外伤性面瘫的诊断有重要意义。

Multi-slice Spiral CT Study of Traumatic Facial Palsy

Objective To explore the applied value of multi-slice spiral CT(MSCT) scan in the traumatic facial palsy.Methods 41 cases of traumatic facial palsy were scanned using MSCT,the MPR of interseted region of temporal bone and curved planar reconstruction(CPR) images were performed on Philips Mx8000 MSCT work station.The types,locations and course of the temporal bone fracture and the involving features of the external auditory canal,middle ear,inner ear were observed.Results 39 cases of the 41 patients had temporal fracture in different location.34 cases were longitudinal fracture,2 were transverse fracture and 2 were mixed fracture.The facial nerve canals were involved in 21 cases.Conclusion MSCT and the reformation images can help to study the facial nerve canal in the traumatic patients.It is important to use the MPR and CPR in the traumatic facial palsy.