Computed Tomography Characterization and Comparison With Polysomnography for Obstructive Sleep Apnea Evaluation

An increased RDI appears to be an important variable for predicting the presence of complete obstruction and CCC during OSA. Scanning during apneic episodes, using low-dose volumetric CT combined with portable PSG provided better anatomic and pathologic findings of OSA than did scans performed during the awake state.