In 383 patients two methods for T1 mapping – 2D Look-Locker (LL), and 3D variable-flip-angle (VFA) combined with a 2-point-Dixon technique – were compared and their correlation with the intrahepatic proton density fat fraction (PDFF) was evaluated. T1_LL showed a moderate positive correlation with PDFF, while there was an intermediate negative correlation between T1_VFA_in (T1 calculated from water and fat in-phase signal) and PDFF; T1_VFA_W (T1 calculated from water only signal) was nearly independent of PDFF. In patients with PDFF above 5%, LL, VFA_in, and VFA_W yielded significantly different results for T1.
This abstract and the presentation materials are available to members only; a login is required.