气管支气管异物多发生于5岁以下儿童,仅次于车祸、中毒而位居意外损伤第三位[1]。以往多以X线检查为主要诊断依据,确诊率较低。螺旋CT尤其是图像后处理技术的应用,显著提高了对气管支气管异物诊断的准确性。现参阅国内、外有关文献,对小儿气管支气管异物影像检查与诊断的研究进 Tracheobronchial foreign body occurred in children under 5 years of age, second only to car accidents, poisoning and ranked third in accidental injury [1]. In the past to X-ray examination as the main basis for diagnosis, the diagnosis rate is low. Spiral CT, especially the application of image post-processing technology, significantly improves the accuracy of the diagnosis of tracheobronchial foreign bodies. Now refer to the domestic and foreign literature, pediatric bronchial foreign body imaging examination and diagnosis into