Investigation on effect of transmit condition on ultrasonic measurement of 2D motion velocity

Abstract A phase-sensitive 2D motion estimator is useful for measurement of minute tissue motion. However, the effect conditions emission ultrasonic waves on accuracy such an has not been investigated thoroughly. In present study, was evaluated under a variety transmission conditions. Although plane wave imaging with single per frame achieved extremely high temporal resolution 10417 Hz, in estimation lateral velocities worse than compound-based method or focused-beam method. By contrast, axial hardly depended Also, combined block matching to estimate displacements larger wavelength. Furthermore, results show that correlation coefficient potential be used evaluation reliability estimated velocity.