The purpose of this pilot interventional study is to evaluate the use of Dynamic Airway Computed Tomography (DA-CT) for diagnosis of tracheomalacia in children 0-18 years for whom flexible bronchoscopy has been performed. The primary aims are to evaluate the diagnostic accuracy, image quality, and radiation exposure of DA-CT as a potential noninvasive alternative to the gold standard of flexible bronchoscopy in the diagnosis of tracheomalacia. The results from this pilot study will help to estimate sample size for a larger-scale study with more precise estimates of DA-CT diagnostic potential.
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Severity of dynamic narrowing on Flexible Bronchoscopy
Timeframe: Through study completion, an average of 1 year
Severity of Maximal Airway Change (MAC) on DA-CT
Timeframe: Through study completion, an average of 1 year
Severity of Excessive dynamic airway collapse (EDAC) on DA-CT
Timeframe: Through study completion, an average of 1 year