Ultrasound elastography is investigated in this thesis based on processing backscattered
raw ultrasonic data (radio frequency signals) using standard cross-correlation tool (SCC) …

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

Pathological phenomena often change the mechanical properties of the tissue. Therefore,
estimation of tissue mechanical properties can be of clinical importance. Ultrasound …

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 …

Conventional techniques in elastography estimate strain as the gradient of the displacement
estimates obtained through crosscorrelation of pre-and postcompression rf A-lines. In these …

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 …

In this paper, we have evaluated the use of smooth windows for ultrasound elastography. In
ultrasound elastography, local tissue strain is estimated using operations such as cross …

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