Abstract
PURPOSE: Narrow-band imaging (NBI) is a novel technique which takes advantage of the increased blood supply of dysplastic tissues to more clearly contrast them to adjacent tissues using specially designed optical filters corresponding to the absorption spectrum of oxyhemoglobin. The purpose of this study was to: first characterize the appearance of normal, dysplastic and frankly malignant airway lesion appearance under NBI and second to determine if NBI, could be improve identification of abnormal airway mucosa and increase biopsy yield of dysplasia and neoplasia.
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