Figure 8a: Initial polyp mislocalizations corrected by using proposed teniae coli–based navigation system. Synchronized 3D endoluminal (a) supine and (b) prone views of a 0.8-cm sessile adenoma (arrow) in the ascending colon of 65-year-old man. Synchronized 3D endoluminal (c) supine and (d) prone views of a polyp-like bump (arrow) 7 cm away from the polyp depicted in a and b. The polyp-like bump in d was initially mislabeled as a match to the polyp in a.