Objective To compare the diagnostic accuracy of pediatric lung ultrasound(PLUS)and chest X-ray(CXR)in hospi-talized children with community acquired pneumonia(CAP),and explore the application of PLUS in evaluation of CAP chil-dren.Methods A total of 153 hospitalized children with CAP diagnosed according to Guidelines for Diagnosis and Treat-ment of Community-Acquired Pneumonia in Children(2019 Edition)were enrolled,which included 99 males and 54 females,aged 3-60 months with mean age of 24.80 months,body mass was 15.3-16.8 kg with mean body mass of 16.41 kg;115 cases of cough and dyspnea and 93 of dyspnea;58 cases of pneumonia and 95 of severe pneumonia.The CXR and PLUS examinations were completed within 6-hour after admission.The imaging manifestations of the two methods were analyzed and the diagnostic accuracy was compared.Results The clinical diagnosis results showed 145 cases of PLUS abnormality(94.77％)and 131 cases of CXR abnormality(85.62％).Among the children diagnosed with pneumonia by CXR,125 cases(125/131,95.42％)were detected abnormal by PLUS,and 22 cases of pneumonia showed negative CXR,of which 20 cases(20/22,90.91％)were detected abnormal by PLUS.The sensitivity of PLUS was 94.77％and specificity was 94.44％.The sensitivity of CXR was 85.62％and specificity was 92.59％.Conclusion It is demonstrated that PLUS shows higher sensitivity and specificity,which can be used as the preferred examination for CAP children before CXR.
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