Lee Edward Y, Litmanovich Diana, Boiselle Phillip M
Department of Radiology and Medicine, Children's Hospital Boston, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.
Radiol Clin North Am. 2009 Mar;47(2):261-9. doi: 10.1016/j.rcl.2008.11.007.
Tracheobronchomalacia (TBM) refers to excessive expiratory collapse of the trachea and bronchi as a result of weakening of the airway walls and/or supporting cartilage. This disorder has recently been increasingly recognized as an important cause of chronic respiratory symptoms. Multidetector CT (MDCT) technology allows for noninvasive imaging of TBM with similar accuracy to the historical reference standard of bronchoscopy. Paired end-inspiratory, dynamic expiratory MDCT is the examination of choice for assessing patients with suspected TBM. Radiologists should become familiar with imaging protocols and interpretation techniques to accurately diagnose this condition using MDCT.
气管支气管软化症（TBM）是指由于气道壁和/或支撑软骨的削弱导致气管和支气管在呼气时过度塌陷。这种疾病最近越来越被认为是慢性呼吸道症状的重要原因。多排螺旋CT（MDCT）技术能够对TBM进行无创成像，其准确性与支气管镜检查这一历史参考标准相似。吸气末与呼气末动态MDCT配对检查是评估疑似TBM患者的首选检查方法。放射科医生应熟悉成像方案和解读技术，以便使用MDCT准确诊断这种疾病。
