Adaptive Filtering of Clutter in Ultrasonic Imaging Based on Acoustic Radiation Force

摘要

For clutter reduction in ultrasound elasticity imaging (42), the contribution of clutter to different frequency components (e.g., the transmission fundamental and the second harmonic generated by propagation) is different. As a result, a difference of the determined displacements (40) at the different frequency bands is used to reduce (41) a contribution of clutter to displacements used for the elasticity imaging (42).