Global ultrasound elastography in spatial and temporal domains

M Ashikuzzaman, CJ Gauthier… - IEEE transactions on …, 2019 - ieeexplore.ieee.org
In this paper, a novel computationally efficient quasi-static ultrasound elastography
technique is introduced by optimizing an energy function. Unlike conventional elastography …

Incorporating gradient similarity for robust time delay estimation in ultrasound elastography

M Ashikuzzaman, TJ Hall… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Energy-based ultrasound elastography techniques minimize a regularized cost function
consisting of data and continuity terms to obtain local displacement estimates based on the …

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 …

Combining first-and second-order continuity constraints in ultrasound elastography

M Ashikuzzaman, A Sadeghi-Naini… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Ultrasound elastography is a prominent noninvasive medical imaging technique that
estimates tissue elastic properties to detect abnormalities in an organ. A common …

Second-Order Ultrasound Elastography With L1-Norm Spatial Regularization

M Ashikuzzaman, H Rivaz - IEEE Transactions on Ultrasonics …, 2022 - ieeexplore.ieee.org
Time delay estimation (TDE) between two radio-frequency (RF) frames is one of the major
steps of quasi-static ultrasound elastography, which detects tissue pathology by estimating …

Fast strain estimation and frame selection in ultrasound elastography using machine learning

A Zayed, H Rivaz - IEEE transactions on ultrasonics …, 2020 - ieeexplore.ieee.org
Ultrasound elastography aims to determine the mechanical properties of the tissue by
monitoring tissue deformation due to internal or external forces. Tissue deformations are …

3D normalized cross-correlation for estimation of the displacement field in ultrasound elastography

M Mirzaei, A Asif, M Fortin, H Rivaz - Ultrasonics, 2020 - Elsevier
This paper introduces a novel technique to estimate tissue displacement in quasi-static
elastography. A major challenge in elastography is estimation of displacement (also referred …

A freehand ultrasound elastography system with tracking for in vivo applications

P Foroughi, HJ Kang, DA Carnegie… - Ultrasound in medicine …, 2013 - Elsevier
Ultrasound transducers are commonly tracked in modern ultrasound navigation/guidance
systems. In this article, we demonstrate the advantages of incorporating tracking information …

Elasticity imaging using conventional and high-frame rate ultrasound imaging: Experimental study

S Park, SR Aglyamov… - ieee transactions on …, 2007 - ieeexplore.ieee.org
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 …

Towards quantitative quasi-static ultrasound elastography using a reference layer for liver imaging application: A preliminary assessment

S Selladurai, AK Thittai - Ultrasonics, 2019 - Elsevier
Abstract Changes in tissue elasticity are generally correlated with pathological phenomena.
For example, diffuse liver disease progressively reduces the elasticity of the liver. Quasi …