In elasticity imaging, the ultrasound frames acquired during tissue deformation are analyzed
to estimate the internal displacements and strains. If the deformation rate is high, high-frame …

High-frame rate ultrasound imaging is necessary to track fast deformation in ultrasound
elasticity imaging, but the image quality may be degraded. Previously, we investigated the …

In biological tissue, an increase in elasticity is often a marker of abnormalities. Techniques
such as quasi-static ultrasound elastography have been developed to assess the strain …

Displacement estimation is a crucial step in ultrasonic strain imaging. The displacement
between a pre-and postcompression signal in the current data window is estimated by first …

Ultrasound strain imaging maps the tissue stiffness in the region of interest by estimating
strain when the tissue is stressed. Prestress and poststress ultrasound echoes are …

The most troublesome of ultrasonic B-mode imaging is the difficulty of accurately diagnosing
cancers, benign tumors, and cysts because they appear similar to each other in B-mode …

In this dissertation, we investigate the feasibility of using high frequency ultrasound, to
measure tissue motion and tissue elasticity for medical imaging applications. Ultrasound …

Ultrasonic strain imaging usually begins with displacement estimates computed using finite-
length sections of RF ultrasound signals. Amplitude variations in the ultrasound are known …

In this paper, a novel computationally efficient quasi-static ultrasound elastography
technique is introduced by optimizing an energy function. Unlike conventional elastography …

In freehand elastography, quasi-static tissue compression is applied through the ultrasound
probe, and the corresponding axial strain is estimated by calculating the time shift between …