Figure 1

Matched representative SAX images from two swine 6 months post MI (Case #1, A-C) and 4 months post MI (Case #2, D-E). Image series A and D includes post-contrast PSIR and pre-contrast T₂ map. The borders of the infarct (arrowhead and arrows) were magnified in series B, C and E. The contrast kinetics revealed by the PSIR images (3-10 min post) demonstrates that the infarct is in effect heterogeneous, while the LGE (PSIR 20 min) failed to visualize the heterogeneity. The pre-contrast T₂ map identified the infarct and co-localized with LGE excellently, and preserved the tissue characteristics very well.