Fig. 4

Right ventricular strain and strain rate obtained by two-dimensional speckle tracking echocardiography. A: Right ventricular strain and strain rate of only RV free wall analysis (RV-SL_3seg and RV-SrL_3seg). B: Right ventricular strain and strain rate of RV global analysis (RV-SL_6seg and RV-SrL_6seg)