M-mode of the right and left ventricle obtained from the right parasternal short-axis view at the level of papillary muscles.RVd- right ventricle, IVSd- inter-ventricular septum, LVIDd—left ventricular internal diameter, LVPWd- left ventricular posterior wall thickness in diastole respectively, IVSs- inter-ventricular septum, LVIDs—left ventricular internal diameter, LVPWs- left ventricular posterior wall thickness in systole respectively.