Abstract

Transverse oscillations (TOs) have been demonstrated to improve the performance of lateral motion estimation, thus obtaining more reliable motion estimation for tissue characterization. TOs were introduced to diverging wave (DW) based ultrafast imaging for 2D motion estimation of rapidly moving targets such as the heart. Furthermore, coherent compounding can improve the quality of DW imaging. The objective of this study is to develop TO method for DW compounding (DWC) to improve the performance of 2D motion estimation for cardiac deformation imaging. Validation is carried out in simulations on a homogenous phantom with lateral rigid motion and a cardiac model with realistic motion. Results demonstrate that TOs can improve the performance of 2D motion estimation in DWC imaging.

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