Extending Conventional Endoscopy in Barrett's Esophagus Using Narrow Band Imaging

five-year survival Cases diagnosed at stage Localized Regional Distant UnstagedStage at DiagnosisPatients With Esophageal Cancer, %figure 2. Narrow band imaging optimizes visualization of hemoglobin by restricting light wavelengths to the blue-green range, resulting in reduced tissue penetration. Image courtesy of Olympus.figure 1. Survival and diagnosis of patients with esophageal cancer by stage. Adapted from SEER Cancer Statistics Factsheets: Esophageal Cancer. National Cancer