T.04.8 ACCURACY OF THE COMBINATION OF TRANSABDOMINAL AND TRANSPERINEAL ULTRASOUND FOR THE EVALUATION OF ULCERATIVE COLITIS ACTIVITY. (May 2022) - Marra, A.; Terracciano, F.; Bossa, F.; Carparelli, S.; Valvano, M.R.; Ippolito, M.A.; Perri, F.