Estimation of strain elastography from ultrasound radio-frequency data by utilizing analytic gradient of the similarity metric

M Omidyeganeh, Y Xiao, MO Ahmad… - IEEE transactions on …, 2017 - ieeexplore.ieee.org
strain imaging, wherein the small hand tremor can generate enough deformation in the tissue.
Quasi-static strain elastography … Furthermore, the displacement and strain fields can be …

Radiofrequency ablation electrode displacement elastography: A phantom study

S Bharat, T Varghese, EL Madsen… - Medical …, 2008 - Wiley Online Library
… Note that the comparison of the modulus contrast to the strain contrast in this article does
not incorporate the contrast-transfer efficiency formulation used for external compression …

Ultrasound‐based elastography: A novel approach to assess radio frequency ablation of liver masses performed with expandable ablation probes: A feasibility study

O Kolokythas, T Gauthier, AT Fernandez… - … of Ultrasound in …, 2008 - Wiley Online Library
… zone for strain-based elastography; however, we currently have no method to validate these
two hypotheses. Frame-to-frame tissue motion/deformation as the underlying principle for …

Elastographic imaging of thermal lesions in the liver in vivo following radiofrequency ablation: preliminary results

T Varghese, JA Zagzebski, FT Lee Jr - Ultrasound in medicine & biology, 2002 - Elsevier
… The melting of the gelatin above the liver sample, and a slight reduction in echogeneity in
(b) are the only visible changes evident from RFA, and (c) illustrates the axial strain elastogram

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
elastography, several methods for 2-D strain imaging have been introduced, based on both
raw frequency … axial strain imaging in terms of elastographic signal-to-noise ratio (SNRe) and …

An unsupervised learning approach to ultrasound strain elastography with spatio-temporal consistency

R Delaunay, Y Hu, T Vercauteren - Physics in Medicine & Biology, 2021 - iopscience.iop.org
… In addition, we propose an open-access in vivo database for quasi-static USE, which consists
of radio-frequency data sequences captured on the arm of a human volunteer. Our results …

3D Myocardial Elastography In Vivo

C Papadacci, EA Bunting, EY Wan… - IEEE transactions on …, 2016 - ieeexplore.ieee.org
… of assessing local strain differences induced by a radio-frequency ablation in volumes with
a … To be more precise, the radiofrequency catheter could be positioned directly inside the left …

Investigation of radiofrequency ultrasound‐based fibrotic tissue strain imaging method employing endogenous motion

A Sakalauskas, R Jurkonis, S Gelman… - … of Ultrasound in …, 2019 - Wiley Online Library
strain elastography imaging method based on radio frequency ultrasound signal analysis. …
using a clinical data set of radio frequency ultrasound signals (23 healthy controls, 21 subjects …

Elastography: history, principles, and technique comparison

BS Garra - Abdominal imaging, 2015 - Springer
… of elastography are currently in use, strain elastography … and image tissue strain, and shear
wave elastography where the … In strain elastography, radio-frequency (RF) ultrasound signals …

Adapting the Lagrangian speckle model estimator for endovascular elastography: Theory and validation with simulated radio-frequency data

RL Maurice, J Ohayon, G Finet… - The Journal of the …, 2004 - pubs.aip.org
… Figure 6c presents the radial strain elastogram as com… strain elastogram as computed
with the LSME for the real plaque; b and c vertical and horizontal 1-D plots from the elastogram, …