64排螺旋CT不同重建算法对肋骨隐匿性骨折的诊断价值

Diagnostic Value of 64 Slice Spiral CT with Different Reconstruction Algorithms in the Diagnosis of Occult Fracture of Rib

目的研究多排螺旋CT容积扫描不同重建算法对肋骨隐匿性骨折的诊断价值。方法回顾性分析194例肋骨隐匿性骨折患者的首次胸部CT图像,所有病例均采用8种重建算法(软组织、标准、胸部、肺、精细、骨、骨+、边缘),图像后处理采用多平面重组(multi-planar reconstruction,MPR)及曲面重组(curved planer reconstruction,CPR)。结果194例胸部外伤中,隐匿性骨折521处,8种重建算法分别检出隐匿性骨折处为(362、378、401、419、467、507、495、472),其中骨及骨+两种重建算法检出率最高,分别为97.3%、95.0%,两种重建算法之间差异无统计学意义(P>0.05)。结论临床工作中选用骨或骨+重建算法有利于提高肋骨隐匿性骨折的检出率。

Objective To study the diagnostic value of multi slice spiral CT volume scan with different reconstruction algorithms in the diagnosis of occult fracture of rib. Methods 194 cases of occult rib fractures in patients with first chest CT images were analyzed retrospectively,all cases were used 8 kinds of reconstruction algorithms（ soft tissue,standards,chest,lung,fine,bone,bone,edge）,and the postprocessing image were by multiplanar reconstruction（ multi-planar reconstruction,MPR） and curved planar reformation（ curved planer reconstruction,CPR）. Results In the 194 cases of chest trauma,521 of occult fracture,8 kinds of reconstruction algorithms were detected occult fracture as the（ 362、378、401、419、467、507、495、472）. The detection of bone and bone ＋ reconstruction algorithms were the highest,respectively 97. 3%,95. 0%,and the difference between the two reconstruction algorithms was no statistical significance（ P〉0. 05）. Conclusion It was beneficial to improve the detection rate of occult fracture of rib by selecting bone or bone ＋ reconstruction algorithm in clinical work.