Figure 12From: Echocardiographic quantification of myocardial function using tissue deformation imaging, a guide to image acquisition and analysis using tissue Doppler and speckle tracking Longitudinal strain of one cardiac cycle in the 4-chamber view using 2DSE before CRT device implantation. Note the early septal peak-systolic strain (yellow arrow/graph) simultaneous with lateral stretching and the late lateral peak strain values (red arrow/graph).Back to article page