Comparison of different modified Look-Locker inversion recovery (MOLLI) sampling algorithms with inversion recovery-spin echo (IR-SE).

<p>y axis: relative T1 values (± SD) to those determined by IR-SE, as measured with different MOLLI schemes on sample T1 of 1769.9 msec (A), 1249.8 msec (B), 821.6 msec (C) and 218.4 msec (D). The measurements were repeated seven times. MOLLI4(7)3 exhibited the best heart rate (HR)-independent accuracy of the six MOLLI schemes on the two longer T1 samples, which were closed to the native blood and myocardium T1. For shorter T1, all exhibited good HR-independent accuracy except for 4(1)3(1)2.