Fig. 5
Spatial variability of T2 mapping in all subjects using the T2P20TE sequence acquired under free breathing conditions with respiratory navigator gating. Spatial variability was evaluated for T2 maps reconstructed using only a subset of the T2prep echo times (0 ms, 25 ms, 50 ms, ∞) (4TEs) (a,b) and using all 20 T2prep echo times (20 TEs) (c,d). Average and standard deviation of T2 spatial variability is reported over all subjects for each segment (a,c) and over all segments for each subject (b,d). In-plane motion correction using ARCTIC reduced the spatial variability of T2 mapping