Displacement estimation for ultrasound elastography based on a robust uniform stretching method

Z Hosseini, A Khadem… - 2022 30th International …, 2022 - ieeexplore.ieee.org
This paper proposes a novel approach to estimate the displacement fields, which is a
common and challenging step in ultrasound elastography. Maximization of normalized cross …

An experimental characterization of elastographic spatial resolution: Analysis of the trade-offs between spatial resolution and contrast-to-noise ratio

S Srinivasan, R Righetti, J Ophir - Ultrasound in medicine & biology, 2004 - Elsevier
An experimental study of the spatial resolution in elastography was conducted. Models that
involved two cylindrical inclusions arranged as a wedge were used to characterize the axial …

Tissue strain imaging using a wavelet transform-based peak search algorithm

H Eskandari, SE Salcudean… - IEEE transactions on …, 2007 - ieeexplore.ieee.org
A new method is proposed to estimate the motion and relative local compression between
two successive ultrasound RF signals under different compression states. The algorithm …

Ultrasound elastography using three images

H Rivaz, EM Boctor, MA Choti, GD Hager - Medical Image Computing and …, 2011 - Springer
Displacement1 estimation is an essential step for ultrasound elastography and numerous
techniques have been proposed to improve its quality using two frames of ultrasound RF …

An H Strategy for Strain Estimation in Ultrasound Elastography Using Biomechanical Modeling Constraint

Z Hu, H Zhang, J Yuan, M Lu, S Chen, H Liu - PloS one, 2013 - journals.plos.org
The purpose of ultrasound elastography is to identify lesions by reconstructing the hardness
characteristics of tissue reconstructed from ultrasound data. Conventional quasi-static …

A novel stretching factor estimator based on an adaptive bisection method for ultrasound strain imaging

Z Hosseini, A Khadem, MH Bibalan - Biomedical Signal Processing and …, 2024 - Elsevier
Objective: Displacement estimation (also known as time-delay estimation (TDE)) is a
challenging step in ultrasound elastography. The main issue of existing TDE techniques is …

Shear strain estimation and lesion mobility assessment in elastography

EE Konofagou, T Harrigan, J Ophir - Ultrasonics, 2000 - Elsevier
Elastography typically measures and images the normal strain component along the
insonification/compression axis, ie, in the axial direction. We have recently shown that, by …

Novel estimators for elastography

SK Alam, FL Lizzi, EJ Feleppa… - Medical Imaging 2001 …, 2001 - spiedigitallibrary.org
In conventional elastography, strains are estimated by computing gradient of estimated
displacement. However, gradient-based algorithms are susceptible to noise. We have …

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 …

Real time tissue elasticity imaging using the combined autocorrelation method

T Shiina, N Nitta, EI Ueno, JC Bamber - Journal of Medical Ultrasonics, 2002 - Springer
The elastic properties of tissues are expected to provide novel information for use in
diagnosing pathologic changes in tissues and discriminating between malignant and benign …