Spiral computed tomographic colonography: determination of the central axis and digital unraveling of the colon.
McFarland EG, Wang G, Brink JA, Balfe DM, Heiken JP, Vannier MW. Spiral computed tomographic colonography: determination of the central axis and digital unraveling of the colon. Acad Radiol. 1997 May; 4(5):367-73.