Objective To explore the MRI application value of plastic bronchitis(PB)in children.Methods Retro-spective analysis of CT scans in the past 2 years,with lobar pneumonia and pulmonary consolidation as the main mani-festations and complete clinical and imaging data of 114 children diagnosed with bronchoscopic pulmonary embolism(PB)and 37 children without PB.MRI scans were performed before bronchoscopic lavage,with a time interval of ≤48 hours between the two examinations.The clinical and imaging manifestations of PB and non PB groups in children on MRI were compared and observed,and the characteristics of PB were analyzed.Results There were statistically signifi-cant differences(P＜0.05)between the PB group and the non PB group in terms of clinical fever duration,length of hospital stay,and frequency of bronchoscopy.Among 114 cases of PB pulmonary consolidation,103 cases showed une-ven mixed high signal on MRI,and 11 cases showed uniform high signal on MRI;Among 37 cases of non PB pulmonary consolidation,35 cases showed uniform high signal intensity in T2WI-fs,and 2 cases showed mixed high signal intensity in T2WI-fs.The difference between the two was statistically significant(P＜0.05).The sensitivity,specificity,positive predictive value,false positive rate,false negative rate,and accuracy of MRI in diagnosing PB in children are 90.35％,76.09％,98.10％,23.91％,9.65％,and 91.39％,respectively.Conclusion The diagnosis and treatment of pediatric plastic bronchitis are difficult.PB is prone to occur in cases of lobar consolidation of the lungs.Routine MRI can deter-mine the presence of characteristic features of pediatric PB in lung consolidation examination and provide diagnostic ba-sis for bronchoscopic lavage treatment.
维普
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