Trial profile (IMAGE) Tokyo Medical and Dental University Caption Among 1508 patients invited to participate in this study between November 2016 and July 2018, 1504 were enrolled after giving consent: 753 were assigned to the WLI group and 751 to the LCI group. Two patients, one in each group, were excluded because of a large amount of residue (WLI group) and stenosis caused by pharyngeal neoplasm (LCI group). In all 752 patients in the WLI group and 750 patients in the LCI group were included in the analyses Credit Department of Gastrointestinal Surgery,TMDU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.