Fig. 4

Three Principal Pulse Sequences Used for Myocardial T2 Mapping. While several variations have been described in the literature, only the three techniques shown here are commercially available. ECG—Electrocardiogram, TD—trigger delay, TE—echo time, HB—Heartbeat, bSSFP—balanced steady state free precession, TI—nversion ime, FSE—fast spin echo, SE—spin echo, BB—black blood, DIR—dual inversion recovery, GRE—gradient recalled echo, EPI—echo planar imaging, SPIR—spectral presaturation with inversion recovery