Non-linear tissue elasticity: Adaptive elasticity imaging for large deformations

SY Emelianov, RQ Erkamp, MA Lubinski… - … Cat. No. 98CH36102 …, 1998 - ieeexplore.ieee.org
Ultrasound's dynamic and interactive (ie, real-time) nature is it's major advantage compared
to other imaging modalities. For elasticity imaging, real-time data capture provides an …

Exploiting strain-hardening of tissue to increase contrast in elasticity imaging

RQ Erkamp, SY Emelianov… - … Symposium (Cat. No …, 2000 - ieeexplore.ieee.org
Most biological tissues show strain hardening. For example, direct mechanical
measurements on human prostate show up to a threefold increase in Young's modulus over …

A robust real-time speckle tracking algorithm for ultrasonic elasticity imaging

J Jiang, T Hall - 2009 IEEE International Ultrasonics …, 2009 - ieeexplore.ieee.org
In this study, we report a robust speckle tracking algorithm specifically designed for quasi-
static ultrasound-based elasticity imaging. The proposed algorithm is a novel combination of …

Nonlinear elasticity imaging

RQ Erkamp, SY Emelianov… - 2002 IEEE …, 2002 - ieeexplore.ieee.org
In tissue the Young's modulus cannot be assumed constant as a function of preload. For
example, direct mechanical measurements on human prostate show up to a threefold …

Adaptive strain estimation using retrospective processing [medical US elasticity imaging]

MA Lubinski, SY Emelianov… - IEEE transactions on …, 1999 - ieeexplore.ieee.org
Because errors in displacement and strain estimates depend on the magnitude of the
induced strain, the strain signal-to-noise ratio (SNR) will be a function of the applied …

In vivo results of real-time freehand elasticity imaging

TJ Hall, Y Zhu, CS Spalding… - 2001 IEEE Ultrasonics …, 2001 - ieeexplore.ieee.org
We are developing a system for real-time estimation and display of tissue elastic properties
using a clinical ultrasonic imaging system. Our hypothesis is that real-time feedback of …

Ultrasound elastography: a dynamic programming approach

H Rivaz, E Boctor, P Foroughi, R Zellars… - IEEE transactions on …, 2008 - ieeexplore.ieee.org
This paper introduces a 2-D strain imaging technique based on minimizing a cost function
using dynamic programming (DP). The cost function incorporates similarity of echo …

Strain imaging using conventional and ultrafast ultrasound imaging: Numerical analysis

S Park, SR Aglyamov, WG Scott… - IEEE transactions on …, 2007 - ieeexplore.ieee.org
In elasticity imaging, the ultrasound frames acquired during tissue deformation are analyzed
to estimate the internal displacements and strains. If the deformation rate is high, high-frame …

Two-dimensional autocorrelation method for ultrasound-based strain estimation

V Shamdasani, Y Kim - … Conference of the IEEE Engineering in …, 2004 - ieeexplore.ieee.org
Ultrasound strain imaging maps the tissue stiffness in the region of interest by estimating
strain when the tissue is stressed. Prestress and poststress ultrasound echoes are …

Uniform precision ultrasound strain imaging

GM Treece, JE Lindop, AH Gee… - IEEE transactions on …, 2009 - ieeexplore.ieee.org
Ultrasound strain imaging is becoming increasingly popular as a way to measure stiffness
variation in soft tissue. Almost all techniques involve the estimation of a field of relative …