颌骨骨折的影像学比较

目的:探讨上下颌骨骨折的影像学比较价值。方法:对125例不同类型的上、下颌骨骨折的常规X线、二维CT和三维CT的显示情况,以及手术结果进行对照分析。结果:对于下颌骨体部、角部和升支骨折,三种影像学都能很好的显示,对于髁状突和喙突骨折,三维CT检查优于常规X线和二维CT;常规X线显示上颌骨骨折较差,而二维CT和三维CT显示的准确性比较接近。三维CT可以直观和立体的显示颌骨骨折线。结论:三种影像学检查各有优缺点,结合患者的经济条件,为提高骨折显示的准确率,三种方法结合使用非常必要。

Comparative imageology of the mandibular and maxillary fracture

Objective:To explore the value of comparative imageology of the mandibular and maxillary fracture.Methods:125 cases of facial fractures were examed by the conventional X-ray plain film,2D-CT and 3D-CT before operation.The results of three methods were compared with each other and with the operation findings.Results:Fractures in body,angle and ascending branch of mandible could be showed fine by all these imaging methods. 3D-CT was better than 2D-CT and conventional X-ray plain film in diagnosis of fractures in condyle and coronoid process. Conventional X-ray plain film was poor in diagnosis of the maxillary fractures.2D-CT and 3D-CT were similar in diagnosis of the maxillary fractures.3D-CT showed the jaws fractures directly and stereoscopicly.Conclusion:Each of these three methods has their advantage and shortage in showing facial fractures.In order to raise the accurate rate of diagnosis,combination of three methods is necessary.