Effectiveness of narrow band imaging in the detection of premalignant and malignant lesions of the larynx: Validation of a new endoscopic clinical classification
- 19 April 2014
- journal article
- research article
- Published by Wiley in Head & Neck
- Vol. 37 (2), 215-222
- https://doi.org/10.1002/hed.23582
Abstract
Background The purpose of this study was to assess the value of narrow band imaging (NBI) endoscopy in the diagnosis of pharyngolaryngeal lesions and to demonstrate the validity of a new NBI‐based classification of their vascular pattern. Methods From 2009 to 2011, 248 patients with pharyngolaryngeal lesions underwent NBI‐endoscopic evaluation. NBI findings were classified into 5 types according to the Ni classification and were compared with histopathological reports. Sensitivity, specificity, accuracy, and positive predictive value (PPV) and negative predictive value (NPV) were calculated. Results Sensitivity, specificity, accuracy, PPV, and NPV were 97.4%, 84.6%, 92.7%, 91.6%, and 95.1%, respectively. Ninety‐eight percent of histologically malignant lesions corresponded to type V endoscopic pattern, whereas 84.8% of the non‐neoplastic lesions corresponded to a type I to IV pattern. Conclusion The NBI ability to detect changes in the mucosal microvasculature can be useful for distinguishing nonmalignant from malignant lesions. An internationally accepted NBI‐endoscopic classification may contribute to the further definition of the diagnostic validity of this technique. © 2013 Wiley Periodicals, Inc. Head Neck, 2014Keywords
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