Diagnostic value of novel retroflexion colonoscopy in the right colon: A randomized controlled trial

Figure 1 Compared with the EC38-i10F colonoscope, the EC-3490Ti colonoscope has shorter bending section, wider retroflexion angle, and smaller retroflexion semidiameter, making retroflexion easier.

Figure 2 Flow diagram of participant enrollment and distribution into allocated groups.

Figure 3 Detected lesions. A and B: The colonoscopy was successfully retroflexed in the ascending colon and the hepatic flexure, respectively; C and D: The same polyp hidden in the proximal side of the haustral folds in the distant view and the tight view, respectively; E and F: A flat lesion located on the haustral folds with white-light mode and i-SCAN mode, respectively.