Fig. 1

Schematic illustration of the four different methods of MRvol quantification used. Representative images of two left ventricular segmentation methods (_incl vs. _excl) (top). End-diastole and end-systole are shown. Top, left: Papillary muscles and trabeculations were included (_incl) in the blood pool, while they were excluded from the ventricular mass calculations. Top, right: Papillary muscles and trabeculations were excluded (_excl) from the blood pool, with mass calculations performed separately for ventricular walls and papillary muscles/trabeculations