Multi-Resolution Hybrid Strain Estimator for Elastography

In this work, we present a multi-resolution hybrid strain estimator. Elastographic simulations and phantom experiments conducted to evaluate the performance of this algorithm demonstrate that for the strain range and the boundary conditions considered in this study, the elastographic contrast-to-noise ratio obtained using the proposed algorithm was on average 3 dB greater than that obtained using adaptive strain estimation algorithm proposed by Srinivasan et al. [1]. The average image cross-correlation coefficient was approximately 6-8% higher than that obtained using the adaptive strain estimation algorithm [1].