Fig. 2

Visual correspondence between histology and T1ρ maps in a pig with induced myocardial infarction. The chronic model was developed by percutaneous coronary artery embolization and T1ρ mapping was carried out 3 months post myocardial infarction on a 1.5-T system using a T1ρ -prepared sequence. Slices were then stained with Masson’s trichrome to visualize healthy cardiomyocytes (red) and collagen (green). Transmural infarction covering the whole septum can be observed in gross pathology, histology, and T1ρ maps. Septal T1ρ elevation (72 ms vs. 51 ms) corresponded with the collagenous zone identified on histological data