Noninvasive two-dimensional strain imaging of arteries: validation in phantoms and preliminary experience in carotid arteries in vivo

H Ribbers, RGP Lopata, S Holewijn… - Ultrasound in medicine …, 2007 - Elsevier
Cardiac disease and stroke are the major causes of death in the Western World.
Atherosclerosis of the carotid artery is the most important predictor of stroke. Elastography is …

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 …

Cavitation rheology of the vitreous: mechanical properties of biological tissue

JA Zimberlin, JJ McManus, AJ Crosby - Soft Matter, 2010 - pubs.rsc.org
We demonstrate the importance of measuring the mechanical properties of biological tissue
in vivo by quantifying the mechanical properties of bovine vitreous both in its native state …

Estimation of displacement vectors and strain tensors in elastography using angular insonifications

U Techavipoo, Q Chen, T Varghese… - IEEE transactions on …, 2004 - ieeexplore.ieee.org
In current practice, only one out of three components of the tissue displacement vector and
one of nine components of the strain tensor are accurately estimated and imaged in …

A review of carotid atherosclerosis and vascular cognitive decline: a new understanding of the keys to symptomology

RJ Dempsey, R Vemuganti, T Varghese… - Neurosurgery, 2010 - journals.lww.com
This review encourages the reader to consider cerebral vascular disease beyond the
traditional clinical end points of major motor and speech strokes and to consider the …

Preliminary in vivo atherosclerotic carotid plaque characterization using the accumulated axial strain and relative lateral shift strain indices

H Shi, CC Mitchell, M McCormick… - Physics in Medicine …, 2008 - iopscience.iop.org
In this paper, we explore two parameters or strain indices related to plaque deformation
during the cardiac cycle, namely, the maximum accumulated axial strain in plaque and the …

Methods for robust in vivo strain estimation in the carotid artery

M McCormick, T Varghese, X Wang… - Physics in Medicine …, 2012 - iopscience.iop.org
A hierarchical block-matching motion tracking algorithm for strain imaging is presented.
Displacements are estimated with improved robustness and precision by utilizing a …

Measuring uncertainty of ultrasonic longitudinal phase velocity estimation using different time-delay estimation methods based on cross-correlation: Computational …

JFS Costa-Júnior, GA Cortela, LE Maggi, TFD Rocha… - Measurement, 2018 - Elsevier
Although few studies on ultrasonic materials characterization present the expanded
uncertainty, it is very important to quantify the final quality of the result. In addition, many of …

Elastographic measurement of the area and volume of thermal lesions resulting from radiofrequency ablation: pathologic correlation

T Varghese, U Techavipoo, W Liu… - American journal of …, 2003 - Am Roentgen Ray Soc
OBJECTIVE. Elastography is a promising tool for visualizing the zone of necrosis in liver
tissue resulting from radiofrequency tumor ablation. Because heat-ablated tissues are stiffer …

Noninvasive vascular elastography with plane strain incompressibility assumption using ultrafast coherent compound plane wave imaging

J Porée, D Garcia, B Chayer, J Ohayon… - IEEE transactions on …, 2015 - ieeexplore.ieee.org
Plane strain tensor estimation using non-invasive vascular ultrasound elastography (NIVE)
can be difficult to achieve using conventional focus beamforming due to limited lateral …