Application of narrow band imaging technology of electronic laryngoscope in the diagnosis of hypopharyngeal carcinoma

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By:海丽 海 刘

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Abstract:

Abstract: Objective To investigate the value of electronic laryngoscope combined with narrow-band imaging (NBI) in the diagnosis of early hypopharyngeal malignant tumors and precancerous lesions. From 2021 to 2025, 90 patients with NBI type diphtheria and pharyngeal lesions were examined by endoscopy and endoscopy. The results showed that there was an abnormal relationship between NBI type diphtheria and pharyngeal lesions in our hospital from 2021 to 2025. Results: the sensitivity, specificity, positive predictive value and negative predictive value of NBI endoscopy in the diagnosis of oropharyngeal and hypopharyngeal malignant lesions were 98.8%, 89.2%, 95.5% and 97.1%, respectively. The results of NBI endoscopy were highly consistent with those of pathological examination (kappa = 0.901, P < 0.01); The sensitivity, specificity, positive predictive value and negative predictive value of white light endoscopy were 83.7%, 86.5%, 93.5% and 69.6% respectively. The results of white light endoscopy were consistent with those of pathological examination (kappa = 0.657, P < 0.01); NBI endoscopy is more accurate than ordinary white light endoscopy in the diagnosis of hypopharyngeal malignant lesions (especially severe dysplasia / carcinoma in situ, P < 0.01) and precancerous lesions (P < 0.01). There was a significant correlation between NBI classification and pathological examination results of hypopharyngeal lesions (r = 0.820, P < 0.01). Conclusion: NBI endoscopy can detect hypopharyngeal carcinoma more accurately than white light endoscopy; NBI typing standard can more accurately diagnose precancerous lesions and early hypopharyngeal cancer, and judge the invasion of the latter. It is of great significance for the early diagnosis and minimally invasive treatment of hypopharyngeal cancer and precancerous lesions.

References:

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