Retrograde inspection vs standard forward view for the detection of colorectal adenomas during colonoscopy: A back-to-back randomized clinical trial

Figure 1 Flowchart of patients included in the study, presented according to the CONSORT statement. R: Randomization; RFV: Retroflected view; SFV: Standard forward view; CRC: colorectal cancer.

Figure 2 Randomization of the included patients and inspection modes in the retroflected view and standard forward view arm. R: Randomization; RFV: Retroflected view; SFV: Standard forward view.

Figure 3 Retrograde inspection of the whole colon. A: For retrograde Inspection of the whole colon, a dedicated high definition colonoscope with an outer diameter of 11.6 mm and a bending radius allowing for > 210° deflection was used (right: RetroView EC-34 i10T; left: standard colonoscope i10F2, both from Pentax Medical, Tokyo, Japan); B and C: Detection of a sessile adenoma behind a colonic fold in retroflexion in the transverse colon in the retroflected view arm.