Fig. 3

Upper panels, scatter plot (a) and Bland–Altman plot (b) to analyze the correlation between ventricular arterial coupling (Ees/Ea) obtained by the original method using end-systolic arterial pressure (Pes), expressed as Ees/Ea, and Ees/Ea approximated using mean arterial pressure (Pm), expressed as (Ees/Ea)′. Lower panels, scatter plot (c) and Bland–Altman plot (d) to analyze the correlation between ventricular arterial coupling (Ees/Ea) obtained using end-systolic arterial pressure (Pes), expressed as Ees/Ea, and the adjusted values of (Ees/Ea)′ [approximated using mean arterial pressure (Pm)] expressed as adj(Ees/Ea)′