Abstract: Objective To investigate the chest X-ray features of children with respiratory syncytial virus pneumonia（RSV）, and to evaluate the value of chest X-ray in the diagnosis and differential diagnosis of respiratory syncytial virus pneumonia. Methods To retrospectively analyze the clinical and imaging data of children with respiratory syncytial virus pneumonia diagnosed by nasal swab nucleic acid detection, summarize the characteristic manifestations of children with respiratory syncytial virus pneumonia on chest X-ray, and identify the common viral pneumonia related literature in children. Results In the chest X-ray of 153 children with respiratory syncytial virus pneumonia, 102 cases (66.7%) showed multiple patchy hyperdense shadows distributed along the bronchovascular bundle, mainly involving the inner zone of bilateral lung fields (57 cases, 37.2%), and 6 cases (3.9%) showed pulmonary consolidation, mostly distributed in the right upper lung field and bilateral lower lung fields; 42 cases (27.5%) only showed bronchitis; No pleural effusion was found in all patients. Conclusion Although the diagnosis of respiratory syncytial virus pneumonia in children should be confirmed by etiology, the radiation dose of chest X-ray is low and easy to operate, which plays an irreplaceable role in the detection, distribution and severity evaluation of lung lesions.

Key words: Respiratory syncytial virus, Viral pneumonia, Pediatric pneumonia, Chest X-ray, Imaging diagnosis