Tissue synchronization imaging (TSI): The ultrasound can automatically calculate the time difference to reach the maximum systolic wave velocity of the opposite myocardial regions and the 12 myocardial regions as well as the standard deviation of the time to reach the maximum systolic wave velocity of 12 cardiac muscle regions (Ts - 4 SD) on 3 basic dimentionals and calculate the maximum time difference of any two cardiac muscle regions.