Figure 8: An example of maximum principal strain-time curves. (a) a CHF study model with LBBB. (b) a CRT optimization model with maximum CURE. (c) a CRT optimization model with minimum . The curves are color-coded by the defined myocardial regions as depicted in the figure. An example of dys-synchrony is shown as the difference in the timing of the peak strain from earliest to latest segment (black arrow). (a) shows that DI equals to 60 ms. (b) shows that four segments arrive at the peak-of-strain almost at the same time. (c) shows that DI equals 30 ms.