Objective To investigate the relationship between the dual-modal imaging classification of chest X-ray and CT in children with mycoplasma pneumoniae(MPP) and their clinical features and prognosis. Methods A retrospective analysis was performed on 143 children with MPP who were admitted to Characteristics Medical Center of Chinese People’s Armed Police Force from January 1, 2023 to December 31, 2024. According to X-ray findings, the children were divided into bronchopneumonia type and consolidation/atelectasis type. Based on CT findings, they were classified into bronchopneumonia type, consolidation/atelectasis type, and bronchiolitis type. Clinical features, inflammatory indicators, and prognosis (including refractory MPP, necrotizing pneumonia, obliterative bronchiolitis, etc.) were compared among children with different imaging classifications. Results Among the 143 children, X-ray classification revealed 84 cases of bronchopneumonia type and 59 cases of consolidation/atelectasis type. CT classification identified 104 cases of consolidation/atelectasis type, 22 cases of bronchopneumonia type, and 17 cases of bronchiolitis type. In the X-ray imaging classification, compared with the bronchopneumonia type, children with consolidation/atelectasis type were older, had significantly higher levels of C-reactive protein, neutrophil-to-lymphocyte ratio, lactate dehydrogenase, and D-dimer (all P<0.05), as well as higher incidence of refractory MPP, necrotizing pneumonia, and ICU admission, and longer hospital stay. Children with CT-defined bronchiolitis type had the highest prevalence of allergic disease history (29.41%) and rales (88.24%) among the three groups (all P<0.05), and this type was identified as a potential high-risk factor for obliterative bronchiolitis. Conclusions X-ray and CT imaging classifications of MPP are closely related to clinical features and prognosis. X-ray can serve as an initial screening tool to preliminarily predict disease severity, while CT can more accurately identify subtle lesions such as bronchiolitis, providing a more reliable basis for early intervention and early warning of long-term complications.
Key words
mycoplasma pneumoniae /
children /
chest imaging /
classification /
clinical outcome
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