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Augmented reality effects gained by the virtual endoscopic display provided by image registered- guided natural orifice transluminal endoscopic surgery. In this case, the display shows a view of the bladder while the scope is in the colon. b Endoscopic view of the anatomy shown in a. The bladder can be visualized beyond the visual feedback provided by the endoscopic camera to avoid any injuries during the access to the peritoneum. A, anterior; P, posterior; R, right.
