Materials and Methods Low dose spiral CT and MPR were performed in 51 children suspected with the foreign body in trachea and bronchi by X-ray, and compared with the results of the bronchi endoscopy.

• 资料与方法对51例X线诊断不明确的小儿气管、支气管异物患儿,应用低剂量螺旋CT扫描及MPR进行检查,依据支气管镜检术异物取出部位为判定标准,将CT诊断与支气管镜检查结果对照。