Figure 4

Schematic RA time-volume curve. RA time-volume curve with the assessment of parameters of atrial function. Reservoir, conduit, and booster volumes are calculated from atrial volumes at special time points. Reservoir function = Vmax-Vmin; Conduit function = Vmax-Vpre-A; Booster function = Vpre-A-Vmin; RV Vmax, maximum RV volume; RV Vmin, minimum RV volume; Pre-A: preatrial contraction.