Palpation has been widely used to detect hard tumorous tissues surrounded by softer
normal tissues. The goal of ultrasound tissue elasticity imaging is to extract information …

In elastography, several methods for 2-D strain imaging have been introduced, based on
both raw frequency (RF) data and speckle-tracking. Although the precision and lesion …

Conventional techniques in elastography estimate the axial strain as the gradient of the
displacement (time-delay) estimates obtained using cross-correlation of pre-and temporally …

In elastography, change in signal shape from tissue deformation and nonaxial tissue motion
reduce correlation between the pre-and postcompression echo signals. Appropriate global …

Ultrasound elastography is emerging with enormous potential as a medical imaging
modality for effective discrimination of pathological changes in soft tissue. It maps the tissue …

In the conventional cross-correlation-based strain estimation, there is a trade-off between
the interpolation accuracy and the computational requirement. On the other hand, the …

A novel zero-crossing tracking strain estimator (ZCT) has been developed for elastography.
This technique is based on tracking the zero-crossings between the pre-and …

In ultrasound elastography, the strains in the axial direction are usually calculated by
applying gradient operator on the estimated axial displacements. Unfortunately, the direct …

Most strain imaging techniques follow a pipeline strategy: in the first step, tissue
displacement is estimated from radio-frequency (RF) frames, and in the second step, a …

In conventional elastography, internal tissue deformations, induced by external compression
applied to the tissue surface, are estimated by cross-correlation analysis of echo signals …