Right ventricular regional free wall average epicardial ‘areal’ cardiac strain at Baseline and TAR 1–5. (A) Basal region, (B) mid-region and (C) lower region. Strain was calculated with the reference configuration at ED and is presented as ± standard error of the mean during the averaged cardiac cycle (n = 8). Regions as depicted in Fig. 1. *P < 0.05 from repeated measures analysis of variance with the Dunnett’s post hoc test versus Baseline at ES. ED: end-diastole; EIVC: end of isovolumic contraction; EIVR: end of isovolumic relaxation; ES: end-systole; TAR: tricuspid annular reduction.