CTICasesTracheomalacia on Dynamic Expiratory CT
Imaging findings
A dynamic (cine) CT protocol performed during repeated coughing with repeated rotations demonstrates excessive expiratory collapse of the tracheal lumen, a clearly positive study for tracheomalacia that can be assessed at any airway level.
Key takeaways
Dynamic expiratory or cough CT protocols can demonstrate tracheomalacia by capturing excessive airway collapse during forced expiration or coughing, which static inspiratory imaging may miss. The technique can be applied at any tracheobronchial level to document dynamic airway collapse.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Transdiaphragmatic Air via the Foramen of Morgagni (Macklin Phenomenon)Artifact
- Fibrotic Hypersensitivity PneumonitisILD
- Fibrotic Hypersensitivity Pneumonitis with GranulomasILD
- Hypervascular Atrioventricular-Groove Lesion (Suspected Paraganglioma)Neoplastic
- E-Cigarette or Vaping-Associated Lung Injury (EVALI)Exposure
- Coronary Sinus Ostial Atresia with Anomalous Venous DrainageCongenital
- Giant Posterior Mediastinal ParagangliomaNeoplastic
- Multiple Large HistoplasmomasInfection
See all cases from January 15, 2021 →