Value of chest CT combined with laboratory indicators in the diagnosis of Mycoplasma pneumoniae pneumonia in children
Objective:To investigate the diagnostic value of chest CT combined with laboratory indicators for Mycoplasma pneumoniae pneumonia(MPP)in children.Methods:From February 2022 to February 2024,66 children with pneumonia admitted to our hospital were selected as the study subjects.According to the test results of Mycoplasma pneumoniae(MP)antibody(IgM),the subjects were divided into MMP group(n=36)and non-MMP group(n=30).Both groups underwent chest CT examination.Fasting venous blood was collected to measure serum white blood cell count(WBC),C-reactive protein(CRP),procalcitonin(PCT)and D-dimer(D-D)levels.The differences in above serum laboratory indicators between the two groups were analyzed.The receiver operating characteristic(ROC)curves were plotted to evaluate the diagnostic value of chest CT combined with laboratory indicators for MPP in children.Results:Among the 66 children with pneumonia,36 cases were diagnosed with MPP through MP antibody IgM test.The accuracy of chest CT for diagnosing MPP in children was 74.24%.The detection rates of bronchial wall thickening,ground glass opacities,and reticular opacities in the MPP group were significantly higher than those in the non MPP group(P<0.05).Serum WBC,CRP,PCT and D-D levels in the MPP group were significantly lower than those in the non-MPP group(P<0.05).The area under curve(AUC)of joint diagnosis with the five was 0.902,higher than that of individual diagnosis(P<0.05).Conclusion:Chest CT and serum WBC,CRP,PCT and D-D all are helpful for diagnosing MPP in children,and their combination can improve diagnostic efficacy.