Virtual versus conventional laryngeal endoscopy.

We have evaluated the capacity of virtual laryngoscopy and conventional laryngoscopy conducted with a rigid or flexible instrument to visualize laryngeal structures in 64 patients with normal endoluminal anatomy. Virtual laryngoscopy allowed total visualization of laryngeal structures, including those that could not be reached by a flexible instrument. There was good correlation between virtual laryngoscopy and "real" images, indicating satisfactory diagnostic accuracy (p < .

Comparison of virtual and conventional endoscopy of nose and paranasal sinuses.

We compared computed tomographic virtual rhinosinus endoscopy (VRS) and conventional fiberoptic endoscopy (FE) for the detection of inflammatory-obstructive rhinosinusal disease. We recruited 158 patients; 100 (group A) had inflammatory-obstructive rhinosinus disease, and 58 (group B) had a history of rhinosinus surgery. All patients underwent VRS within 2 to 6 hours of FE, and VRS was able to demonstrate the anatomic details of the nasal fossa and rhinopharynx with a high correspondence to FE.