Fig. 5
Myocardium compartmentalization. The results of the voxelwise (n = 1,515,232), SNR-weighted, biexponential signal-fitting algorithm used to probe compartment volume fractions and T2* values in a typical specimen are shown in the intracellular (a) and extracellular (b) volume fraction maps and their respective distributions (c). Intracellular (d) and extracellular (e) T2* calculations yield T2* distributions (f) with well-defined peaks. The modal volume fraction and T2* values for the two compartments are annotated within the figure with the subscripts i and e indicating intra- and extracellular compartments, respectively