肺炎支原体肺炎急性期X线与HRCT肺部特征及诊断价值对比

Comparison of Pulmonary Characteristics and Diagnostic Value of X-ray and HRCT in Children with Acute Mycoplasma Pneumoniae Pneumonia

本文探讨肺炎支原体肺炎(MPP)患儿急性期X线与高分辨率CT(HRCT)肺部特征及诊断价值。选取MPP患儿120例,根据检查方法分为X线组(n=70)和HRCT组(n=50),其中X线组接受胸部X线检查,HRCT组接受HRCT检查。HRCT组检查MPP诊断率为92.00%,高于X线组(P<0.05);X线影像主要为间质性浸润,其次表现为肺门影增大,肺纹理增粗、增多等;HRCT检查主要为不均匀性高密度肺实变影,包括小叶实变影、节段性实变影和大叶性实变影;HRCT组大叶性实变影患儿FEF 25、FEF 75占预计值比例明显低于小叶实变影、节段性实变影(P<0.05);节段性实变影患儿FEF 75占预计值比例低于小叶实变影(P<0.05)。HRCT在MPP患儿诊断中有较好的应用价值,且患儿HRCT实变影与肺功能有一定关系。

The purpose of this study is to investigate the lung characteristics and diagnostic value of X-ray and high-resolution CT(HRCT)in children with mycoplasma pneumoniae pneumonia(MPP).One hundred and twenty children with MPP who were treated were selected and divided into X-ray group(n=70)and HRCT group(n=50).The X-ray group received chest X-ray examination,and the HRCT group received HRCT examination.The MPP diagnosis rate of HRCT group was 92.00%,which was higher than that of X group(P<0.05).The X-ray images were mainly interstitial infiltration,followed by hilar shadow enlargement,lung texture thickening and increase,etc.HRCT examination mainly consisted of non-uniform high-density lung consolidation shadows,including lobular consolidation shadows,segmental consolidation shadows and macrophylla consolidation shadows.In the HRCT group,FEF 25 and FEF 75 accounted for the projected value of macrophylla consolidation shadows were significantly lower than lobular consolidation and segmental consolidation(P<0.05).The proportion of FEF 75 in children with segmental consolidation shadow was lower than that of lobular consolidation shadow(P<0.05).HRCT has a good application value in the diagnosis of MPP,and the consolidation shadow of HRCT has a certain relationship with lung function.