MSCT后处理重建技术在不完全肋骨骨折诊断中的应用价值

Application value of MSCT post-processing reconstruction technique in the diagnosis of incomplete rib fracture

目的探讨多层螺旋CT(MSCT)后处理重建技术在不完全肋骨骨折诊断中的应用价值。方法回顾性分析60例不完全肋骨骨折患者的临床资料,将其MSCT常规扫描图像拆薄至1.25 mm,并利用多平面重建(MPR)、容积再现(VR)、曲面重建(CPR)三项后处理重建技术对不完全骨折图像进行分析,对比各技术诊断肋骨不完全骨折的效果及实用性。结果60例患者中,不完全肋骨骨折138处,MPR显示129处,VR显示117处,CPR显示134处,诊断准确率分别为93.48%、84.78%、97.10%,不同重建方法之间诊断准确率差异有统计学意义(均P<0.05),VR+CPR+MPR联合诊断不完全肋骨骨折准确率达99.28%(137/138)。结论MPR诊断肋骨不完全骨折方便实用,便捷性更高,CPR对不完全肋骨骨折的显示效果更佳,多种后处理技术联合应用有助于提高诊断准确率。

Objective To investigate the value of multislice spiral computed tomography(MSCT)post-processing reconstruction technique applied to the diagnosis of incomplete rib fracture.Methods The clinical data of 60 patients with incomplete rib fracture were analyzed retrospectively,whose conventional MSCT images were thinned down to 1.25 mm,and the images of incomplete fractures were analyzed by using three post-processing reconstruction techniques,including multiplane reconstruction(MPR),volume rendering(VR)and curve planar reformation(CPR).The effect and practicability between each technique in the diagnosis of incomplete rib fracture were compared.Results Among the 60 patients,there were 138 incomplete rib fractures,of which 129 were detected by MPR,117 by VR and 134 by CPR.The diagnostic accuracy rates were 93.48%,84.78%and 97.10%,respectively,and there were statistically significant differences in diagnostic accuracy rates among different reconstruction techniques(all P<0.05).The accuracy rate of VR+CPR+MPR in the combined diagnosis of incomplete rib fracture was 99.28%(137/138).Conclusion MPR is more convenient and practical in diagnosing incomplete rib fractures,and CPR is more effective in displaying incomplete rib fractures.The combined application of multiple post-processing techniques can improve the diagnostic accuracy rate.