Fig. 2

Representative examples of the T2 and native T1 maps showing the edema-based AAR and the corresponding LGE on the conventional, synthetic and post-contrast T1 maps. Patients A and C suffered from an acute anterior STEMI and Patient B suffered from an acute inferior STEMI – all were treated by PPCI. The black arrows indicate the territory of the edema-based AAR on the T2 and native T1 maps and the red arrows indicate the territory of the subendocardial MI (of different transmural extents) on the conventional and synthetic LGE images and post-contrast T1 maps. All these patients had significant myocardial salvage but the areas of abnormality on the T2 and native T1 maps extended beyond the corresponding MI territory, indicating edema in the salvaged myocardium