T.10.2 ACCURACY OF THE COMBINATION OF TRANSABDOMINAL AND TRANSPERINEAL ULTRASOUND FOR THE EVALUATION OF ULCERATIVE COLITIS ACTIVITY. (March 2023) - Terracciano, F.; Marra, A.; Bossa, F.; Nassisi, V.; Carparelli, S.; Valvano, M.R.; Cocomazzi, F.; Perri, F.