Magnetic resonance enema versus rectal water contrast transvaginal ultrasonography in the diagnosis of rectosigmoid endometriosis Posted on 8 April 201610 February 2020 by admin Leone Roberti Maggiore U, Biscaldi E, Vellone GV, Venturini PL, Ferrero S. Magnetic resonance enema versus rectal water contrast transvaginal ultrasonography in the diagnosis of rectosigmoid endometriosis. Ultrasound Obstet Gynecol 2017;49:524-532.https://obgyn.onlinelibrary.wiley.com/doi/full/10.1002/uog.15934