Gastrointest Endosc 81 (4): 781 - 794, 2015. doi: 10.1016 / j. gie.2014.09.048 Video Capsule Endoscopy In video capsule endoscopy (wireless video endoscopy), patients swallow a disposable capsule containing a camera that transmits images to an external recorder; the capsule does not need to be retrieved.