Figure 3From: Pre-ejection period by radial artery tonometry supplements echo doppler findings during biventricular pacemaker optimization Effect of Biventricular Pacemaker Optimization on PEP Measured by Radial Artery Tonometry and LV ET Measured by Echo Doppler. Effect of biventricular pacemaker optimization on PEP measured by radial artery tonometry and LV ET measured by echo Doppler. Baseline and optimal PEP (left panel) and baseline and optimal ET measured by echo Doppler (right panel) are shown in each study subject. PEP, pre-ejection period; ET, ejection timeBack to article page