1. Narrow band imaging as screening test for early detection of laryngeal cancer: a prospective study.
- Author
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De Vito, A., Meccariello, G., and Vicini, C.
- Subjects
LARYNGEAL cancer diagnosis ,IMAGING of cancer ,PRECANCEROUS conditions ,INTRAOPERATIVE awareness ,STATISTICAL significance - Abstract
Objectives To analyse the specificity and sensibility of narrow band imaging illumination technology in the early detection of laryngeal cancer in the patients' population without previous diagnosis of laryngeal cancer in a screening setting. Design Unicentre, prospective study. Setting One tertiary medical centre. Participants A total of 158 patients completed all protocol steps. Main outcome measures Sensitivity, specificity, positive and negative predictive values of narrow band imaging (NBI) in detecting precancerous lesions and early laryngeal cancer. Results The blind assessment of NBI patterns concurred in 90% of patients. In identifying laryngeal cancer and its precursor lesions, in-office NBI showed a high sensitivity of 97% (CI, 84.2%-99.9%), specificity of 92.5% (CI, 79.6%-98.4%), PPV of 91.4% (CI, 76.9%-98.2%), NPV of 97.4% (CI, 86.2%-99.9%) and accuracy of 94.5% but intra-operative NBI demonstrated a sensitivity of 97% (CI, 84.2%-99.9%), a slightly higher specificity of 95% (CI, 83.1%-99.4%), PPV of 94.1% (CI, 80.3%-993%), NPV of 97.4% (CI, 86.5%-99.9%) and accuracy of 95.9%. The comparative receiver operating characteristic curves confirmed a slightly higher performance for the intra-operative NBI evaluation without any statistical significance ( P = 0.41). Conclusions Our results confirm the high values of sensitivity and specificity of NBI system in detecting pre-neoplastic laryngeal lesions or early laryngeal cancer in a patients' population selected only by means of risk factors exposure and confirmed the potential role of NBI evaluation as in-office screening tool. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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