Agreement between single and multiple ROI strategies for hepatic T1 and ECV mapping in tetralogy of Fallot and Fontan circulation. - Innocenzi AM; Fernandes FP; Secco JCP; Costermani IC; Rebelo JL; Medeiros AS; Parente DB; Perez RM; Luiz RR; Camargo GC; Moll-Bernardes R; Póvoa-Corrêa M (Abdominal radiology (New York), 2026)