Fig. 7

Representative cases from our study. Myocardial native T1 and ECV values of the RV free wall are 1564 ms and 17.8% from the pre- and post-contrast images (a, b), and collagen density is 4.1% on myocardial specimens at baseline (c). Pre- and post-contrast images obtained 6 weeks after monocrotaline injection (d, e) show increased native T1 and ECV values for the RV free wall (1672 ms and 24.3%, respectively). Collagen density is 11.0% (f). Myocardial specimens refer to myocardial specimens scanned digitally with Masson’s trichrome staining (original magnification × 400)