Fig. 1
T2 scans from one subject acquired using the T2P4TE sequence under breath-hold (BH), free breathing (FB), and free breathing with respiratory navigator gating (FB + NAV). Data are shown without (uncorrected) and with (motion corrected) in-plane motion correction. The endocardial contour of the LV myocardium, drawn on the reference image (1st image) of each scan, is reported in all subsequent T2-weighted images to facilitate visual motion assessment. Misalignments observed among uncorrected images (red arrows) were substantially reduced after in-plane motion correction using ARCTIC. Furthermore, artifacts in uncorrected T2 maps (white arrows) were reduced in motion corrected T2 maps