A scanning-mode 2D shear wave imaging (s2D-SWI) system for ultrasound elastography

W Qiu, C Wang, Y Li, J Zhou, G Yang, Y Xiao, G Feng… - Ultrasonics, 2015 - Elsevier
Ultrasound elastography is widely used for the non-invasive measurement of tissue elasticity
properties. Shear wave imaging (SWI) is a quantitative method for assessing tissue stiffness …

Normal and shear strain estimation using beam steering on linear-array transducers

M Rao, Q Chen, H Shi, T Varghese, EL Madsen… - Ultrasound in medicine …, 2007 - Elsevier
In current ultrasound elastography, only the axial component of the displacement vector is
estimated and used to produce strain images. A method was recently proposed by our group …

Improvements in ultrasound elastography using dynamic focusing

D Lertsilp, S Umchid, U Techavipoo… - The 4th 2011 …, 2012 - ieeexplore.ieee.org
Many ultrasound elastograms are reconstructed from pre-and post-compression
radiofrequency (RF) signals after beamforming using a single or a few focusing depths. This …

Dynamic resolution selection in ultrasonic strain imaging

JE Lindop, GM Treece, AH Gee, RW Prager - Ultrasound in medicine & …, 2008 - Elsevier
Ultrasonic strain imaging promises to be a valuable tool in medical diagnostics. Reliability
and ease-of-use have become important considerations. These depend on selection of …

Performance evaluation of methods for two-dimensional displacement and strain estimation using ultrasound radio frequency data

RGP Lopata, MM Nillesen, HHG Hansen… - Ultrasound in medicine …, 2009 - Elsevier
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 …

Global time-delay estimation in ultrasound elastography

HS Hashemi, H Rivaz - IEEE transactions on ultrasonics …, 2017 - ieeexplore.ieee.org
A critical step in quasi-static ultrasound elastography is the estimation of time delay between
two frames of radio-frequency (RF) data that are obtained while the tissue is undergoing …

Axial strain calculation using a low-pass digital differentiator in ultrasound elastography

J Luo, J Bai, P He, K Ying - ieee transactions on ultrasonics …, 2004 - ieeexplore.ieee.org
In ultrasound elastography, tissue axial strains are calculated from the gradient of the
estimated axial displacements. However, the common differentiation operation amplifies the …

Combining total variation regularization with window-based time delay estimation in ultrasound elastography

M Mirzaei, A Asif, H Rivaz - IEEE transactions on medical …, 2019 - ieeexplore.ieee.org
A major challenge of free-hand palpation ultrasound elastography (USE) is estimating the
displacement of RF samples between pre-and post-compressed RF data. The problem of …

The role of viscosity estimation for oil-in-gelatin phantom in shear wave based ultrasound elastography

Y Zhu, C Dong, Y Yin, X Chen, Y Guo, Y Zheng… - Ultrasound in medicine …, 2015 - Elsevier
Shear wave based ultrasound elastography utilizes mechanical excitation or acoustic
radiation force to induce shear waves in deep tissue. The tissue response is monitored to …

Phase velocity estimation with expanded bandwidth in viscoelastic phantoms and tissues

P Kijanka, MW Urban - IEEE transactions on medical imaging, 2021 - ieeexplore.ieee.org
Ultrasound shear wave elastography (SWE) is a technique used to measure mechanical
properties to evaluate healthy and pathological soft tissues. SWE typically employs an …