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Updated: Aug 4, 2026
07:31
Image Acquisition using Portable Sonography for Emergency Airway Management
Published on: September 28, 2022
Evaluation of airway obstruction using virtual endoscopy
A J Burke1, D J Vining, W F McGuirt
1Department of Otolaryngology, Wake Forest University Medical Center, Winston-Salem, North Carolina 27157, USA. alanjcburke@hotmail.com
The Laryngoscope
|January 26, 2000
Summary
Virtual endoscopy (VE) accurately measures fixed airway lesions but struggles with dynamic airway obstructions. Actual endoscopy remains superior for diagnosing conditions involving movement.
Area of Science:
- Medical Imaging
- Otolaryngology
- Pulmonology
Background:
- Upper airway obstruction presents diagnostic challenges.
- Virtual endoscopy (VE) offers a non-invasive imaging approach.
- Comparison with actual endoscopy is crucial for validating VE utility.
Purpose of the Study:
- To evaluate the diagnostic accuracy of VE in upper airway obstruction.
- To compare VE with actual endoscopy for diagnosis and image reproduction.
- To assess VE's effectiveness in identifying various airway pathologies.
Main Methods:
- A cohort of 30 patients with diverse airway obstructions was studied.
- Computed tomography (CT) data were reconstructed using proprietary VE software.
- VE findings were compared blindly against actual endoscopic results.
Main Results:
- VE accurately assessed stenosis width and length for fixed lesions.
- Excellent correlation was found in stenosis shape and contour.
- VE failed to visualize glottic webs, tracheomalacia, and vocal cord mobility issues.
Conclusions:
- VE excels in defining and measuring fixed airway lesions.
- VE is less sensitive than actual endoscopy for dynamic airway obstructions.
- Actual endoscopy remains essential for evaluating pathologies based on movement.
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