MR fingerprinting for rapid quantification of myocardial T₁, T₂, and proton spin density

Purpose To introduce a two-dimensional MR fingerprinting (MRF) technique for quantification of T1, T2, and M0 in myocardium. Methods An electrocardiograph-triggered MRF method is introduced for mapping myocardial T1, T2, and M0 during a single breath-hold in as short as four heartbeats. The pulse sequence uses variable flip angles, repetition times, inversion recovery times, and T2 preparation dephasing times. A dictionary of possible signal...