Does use of narrow band imaging (NBI) influence observer agreement while making diagnostic decisions using rigid endoscopy of the upper aerodigestive tract?
The addition of NBI to conventional white light imaging (WLI) improves inter- and intraobserver agreement for diagnosing (pre)malignant lesions in the larynx, hypopharynx, and oropharynx and therefore improves the reliability of endoscopic examinations.
Explore this issue:October 2016
Background: NBI is a relatively new endoscopic technique for detecting (pre)malignant lesions in the head and neck area, and is based on the principle that the wavelength of light influences the penetration depth in tissues: The larger the wavelength, the deeper the penetration. Currently, Ni’s intraepithelial papillary capillary loop (also called intrapapillary capillary loop) classification is most frequently used to classify mucosal laryngeal lesions. NBI increases the contrast between a lesion and healthy epithelium, and seems to be a promising technique for differentiation between benign and (pre)malignant lesions.
Study design: Retrospective study.