多层螺旋CT在颌面骨创伤中的诊断价值

目的 :探讨多层螺旋CT在骨关节创伤中的诊断价值。材料与方法 :4 9例经X线、普通CT或临床检查可疑有骨折或关节脱位的创伤患者 ,应用MarconiMx 80 0 0型多层CT扫描机进行检查 ,并行多平面重建图像 (MPR)、常规容积重建 (VR) ,分析骨折或脱位的显示情况。结果 :4 9例患者中关节脱位 13例。MPR矢状位和冠状位重建影像明确诊断 4 7例 (95 .9% ) ,3D VR容积重建明确诊断 39例 (79.6 % )。MPR显示骨折线的走行和移位更具优势 ,3D重建更好的显示骨结构的空间改变 ,骨碎片的移位和关节脱位。结论 :多层螺旋CT对骨关节创伤的诊断具有很高应用价值 ,尤其是对于颌面部不规则骨骨折和关节脱位的诊断更具优势。

The Value of Multislice Spiral Computed Tomography on Bone Trauma

Objective To explore the value of multislice spiral computed tomography on trauma of bone and joint. Methods Forty-nine patients who are suspected with fracture or dislocation after trauma are imaged with MSCT, including MPR and VR , analysising show of fracture and dislocation.Results Maxillo-facial bones are involved in 49 patients. Dislocation are found in 13 patients of all patients.MPR diagnosis 47 patients accurately, VR diagnosis 39 patients accurately, MPR is superior to display courser and displacement of fracture rather than other imagings, VR is more accurate in showing space change of bone and dislocation of joint. Conclusion MSCT is a very useful method in the diagnosis of the trauma of bone and joint, especially fracture and dislocation of irregular bone.