Localized Diagnosis of the Non-metallic Foreign Body in Lower Respiratory Tract(An Analysis of 150 Cases) / 实用放射学杂志

ABSTRACT

Objective To explore the main X-ray feature of the non-metallic foreign body in lower respiratory tract in order to improve the diagnostic accuracy.Methods X-ray findings of non-metallic body in lower respiratory in 150 cases proved by tracheobronchoscopy were retrospectively analyzed.The changes of heartshadow,mediastinum pulmotransparency and diaphragm during the procedure of deepbreath were observed under fluoroscoopy in different position,based on that the location of foreign body was evaluated.Results The distribution of foreign bodies in all patients included38 cases in trachea,81 cases in right bronchus (25 cases in right primary bronchus,4 cases in upper lobar bronchus,5 cases in middle lobar bronchus,47 cases in lower lobar bronchus and segmental brouchus),31 cases in left bronchus (13 cases in left primary bronchus,2 cases in upper lobar bronchus and 16 cases in lower lobar bronchus).Because of the anatomical difference,the foreign bodies usually saw in right lower lobar bronchus.Conclusion Those patients who were suspected with foreign bodies in lower respiratory tract should be routinly examined by X-ray including fluoroscopy which is of important value in localized diagnosis of non-metallic foreign body in lower respiratory tract.