A method and device for evaluating a colonoscopy procedure includes an endoscope (12) having a distal portion (22) and a proximal portion (24). A plurality of sensors (28) are positioned along the endoscope (12) and operatively connected to a processing system (14). The plurality of sensors (28) and processing system (14) detect a first bending of the distal portion (22) and a second bending of the proximal portion (24). The first and second bending are compared by the processing system (14) for estimating the formation of the partial loop in order to predict the formation of a full loop during the colonoscopy procedure.
