Figure 1

Radial velocity graph at left ventricular base. 1 – isovolumetric contraction, 2 – rapid ejection, 3 – reduced ejection, 4 – isovolumetric relaxation, 5 – rapid filling, 6 – diastasis, 7 – atrial contraction, ED – end diastole, ES – end systole, a – peak systolic radial velocity, b – upward directed notch in early diastole, c – peak diastolic radial velocity, d – additional thrust of outward radial movement during rapid ventricular filling.