Fig. 7

Computation of end-systolic elastance (Ees) of the right ventricle. a Peak isovolumic pressure (Pmax) from a given single contraction of the right ventricle is estimated from the extrapolated sine curve (dashed line) using the isovolumic pressure (shadowed periods) [42, 43]. b Ees is estimated by combining the Pmax, the right ventricular end-systolic pressure (Pes) and stroke volume (SV) [43]. The estimated pressure–volume loop of the right ventricle is drawn with a dashed line. Ea effective arterial elastance, HMP hydromotive pressure, ICT isovolumic contraction time, IRT isovolumic relaxation time