Figure 3

Definition of bowel visibility. Visibility was evaluated using a 4-point qualitative evaluation scale: A = excellent, visualization of ≥90% of the mucosa, no or minimal fluid, debris and bubbles; B = good, visualization of ≥90% of the mucosa, mild fluid, debris and bubbles; C = fair, visualization of <90% of the mucosa, moderate fluid, debris and bubbles; D = poor, visualization of <80% of the mucosa, excessive fluid, debris and bubbles.