Fig 1. Presence of markers in the upper right, upper left and rectosigmoid region implies a delayed transit time in that specific bowel segment. According to the mathematical formulas mentioned, the time estimated after the use of CTT markers for 6 consecutive days include: Rectosigmoid = 26.4, LCTT = 50.4, RCTT = 24, Total CTT= 110.4h which is characteristic for Colonic Inertia (criteria).