目的 分析采用多层螺旋CT的 骨三维重建对肋骨及肋软骨损伤应用效 果。方法 收集2013年12月至2016年6月 我院胸外伤患者51例为研究对象，采用 多平面重建(MPR)、表面遮盖法(SSD)、 曲面重建(CPR)、最大密度投影(MIP）进 行三维重建，并与胸部平片进行对比， 比较他们之间的特异度、灵敏度、阳性 及阴性预测值，了解其诊断效果。结 果 51例胸部外伤患者中，肋骨骨折47 例，肋软骨骨折2例，MPR灵敏度(88.5%) 和特异度(93.6%)最高，阳性预测值为 96.5%，阴性预测值为78.6%，要高于 CPR、VR、SSD、MIP，差异具有统计学意 义(P＜0.05)。结论 临床中应用多层螺 旋CT检查肋骨及肋软骨损伤，可提供更 准确、清晰的影像信息，对明确临床诊 断及治疗具有良好的指导意义。

Objective Bone reconstruction of multislice spiral CT applications in the ribs and rib cartilage injury. Methods December 2013 to June 2016 in our hospital chest trauma 51 patients for the study, multi-planar reconstruction (MPR), shaded surface display (SSD), curved planar reconstruction (CPR), maximum intensity projection (MIP) three-dimensional reconstruction, and compared with chest radiography. Results 51 cases of patients with chest trauma, rib fractures in 47 cases, 2 cases of costal cartilage fracture, MPR sensitivity (88.5%) and specificity (93.6%) the highest positive predictive value 96.5%, negative predictive value of 78.6%, to higher than CPR, VR, SSD, MIP, comparison was statistically significant (P<0.05). Conclusion The multilayer spiral CT ribs and cartilage damage, may provide a more accurate and clear image information of a clear clinical diagnosis and treatment has a good guide.