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Narrow‐band imaging (NBI) is a novel, noninvasive optical technique that uses reflected light to visualize the organ surface. However, few prospective studies that examine the efficacy of NBI screening for esophageal cancer have been reported. To compare the diagnostic yield of NBI endoscopy for screening of squamous mucosal high‐grade neoplasia of the esophagus between experienced and less experienced...
Infrared endoscopy is used to visualize vessels in the GI tract. By applying this system, we developed a new method to visualize a bleeding point during endoscopic resection.This study aimed to evaluate the ability of infrared endoscopy to detect a bleeding point during endoscopic resection and to elucidate the mechanism required for clear visualization of a bleeding point by in vitro color analysis...
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