Fig. 6
From: Dark-blood late gadolinium enhancement without additional magnetization preparation
Bloch simulations of the (normalized) longitudinal magnetization (Mz). The Mz of viable myocardium [yellow], left ventricular (LV) blood [orange], and myocardial scar [blue], are shown in a phase-sensitive inversion-recovery (PSIR) pulse sequence with LV blood nulling (a) and viable myocardium nulling (b). For both subplots, the approach to the steady state during acquisition has been enlarged on the right to show the fine pulse sequence details. The vertical black solid lines indicate the end of a heartbeat (HB), while the vertical red dotted lines indicate the acquisition of the middle of k-space. Note that the time between the inversion pulse and the red dotted line, the inversion time, is significant shorter with LV blood nulling (a) than with viable myocardium nulling (b)