Abstract:Objective To explore the application of electronic laryngoscope narrow-band imaging (NBI) mode in diagnosis of early laryngeal cancer and its consistency with pathological results.Methods 80 patients with laryngeal lesions were selected and underwent electronic laryngoscope white light, NBI pattern examination and pathological examination. The NBI and white light pattern examination results and image quality were compared, and the consistency between the electronic laryngoscope NBI pattern and the pathological results were analyzed.Results 80 patients with laryngeal lesions were all single lesions, of which 29 were pathologically positive (malignant), including 22 cases of squamous cell carcinoma (type V), 7 cases of carcinoma in situ (type V); Negative (non-malignant) 51 cases, including 5 cases of moderate dysplasia (type Ⅳ), 18 cases of simple hyperplasia (type Ⅲ), 18 cases of chronic laryngitis (type Ⅱ), 10 cases of vocal cord polyps (type Ⅰ). In 80 cases of laryngeal lesions, there were 30 positive cases and 50 negative cases under the electronic laryngoscope NBI mode; 23 cases positive and 57 negative cases under the white light mode; the sensitivity, negative predictive value and accuracy of the electronic laryngoscope NBI mode were higher than those under the white light mode, and the difference were statistically significant (P < 0.05); The lesion contour and microvessel morphology scores in the image of the electronic laryngoscope NBI mode were higher than those in the white light mode, and the differences were statistically significant (P < 0.05); The coincidence rate of the NBI mode of the electronic laryngoscope and the pathological results was 80.00% (Kappa = 0.733, P = 0.000).Conclusion Under the NBI mode of the electronic laryngoscope, the morphology and structure of the microvessels in the mucosal surface are clearly visible, and it is easier to identify the early lesions and determine the scope of the lesions, and the diagnostic results are highly consistent with the pathological results.