Figure 2

Effect of motion correction for pixel-wise ECV mapping on a subject with hypertrophic cardiomyopathy (top row) and chronic myocardial infarction in the inferior LV wall (bottom row). (a) pre-contrast T1 map after motion correction; (d) ECV map using maps (a) and (b); (e) ECV map using maps (a) and (c). The white epicardial reference contour was manually drawn on the pre-contrast T1 maps, and the white arrows in (d) illustrate some areas with missing myocardium or artificially elevated ECV due to breath hold positions not being spatially aligned. The colormap proposed in [3] has been used, where deep blue represents a normal ECV range of 20-30%.