Recovering vector displacement estimates in quasistatic elastography using sparse relaxation of the momentum equation

OA Babaniyi, AA Oberai, PE Barbone - Inverse problems in …, 2017 - Taylor & Francis
We consider the problem of estimating the 2 D vector displacement field in a heterogeneous
elastic solid deforming under plane stress conditions. The problem is motivated by …

Algorithms for quantitative quasi‐static elasticity imaging using force data

M Tyagi, S Goenezen, PE Barbone… - … journal for numerical …, 2014 - Wiley Online Library
Quasi‐static elasticity imaging can improve diagnosis and detection of diseases that affect
the mechanical behavior of tissue. In this methodology, images of the shear modulus of the …

Finite element formulation for shear modulus reconstruction in transient elastography

E Park1, AM Maniatty - Inverse Problems in Science and …, 2009 - Taylor & Francis
In order to image the shear modulus in soft tissue, for medical diagnosis, given one
component of measured displacements as a function of time on an imaging plane, two …

Stability in the linearized problem of quantitative elastography

T Widlak, O Scherzer - Inverse problems, 2015 - iopscience.iop.org
The goal of quantitative elastography is to identify biomechanical parameters from interior
displacement data, which are provided by other modalities, such as ultrasound or magnetic …

[HTML][HTML] A stochastic filtering approach to recover strain images from quasi-static ultrasound elastography

M Lu, D Wu, W Lin, W Li, H Zhang… - Biomedical engineering …, 2014 - Springer
Background Model-based reconstruction algorithms have shown potentials over
conventional strain-based methods in quasi-static elastographic image by using realistic …

Quantitative elasticity imaging: what can and cannot be inferred from strain images

PE Barbone, JC Bamber - Physics in Medicine & Biology, 2002 - iopscience.iop.org
We examine the inverse problem associated with quantitative elastic modulus imaging:
given the equilibrium strain field in a 2D incompressible elastic material, determine the …

Model-based estimation of elastic moduli by local displacement observation of an elastic body

M Morita, M Nakao, T Matsuda - Advanced Biomedical Engineering, 2018 - jstage.jst.go.jp
As the pathological characteristics of living tissue generally correlate with tissue stiffness,
techniques such as ultrasound elastography play an important role in the medical field. One …

[HTML][HTML] 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 …

General guidelines for the performance of viscoelastic property identification in elastography: A Monte‐Carlo analysis from a closed‐form solution

E Van Houten, G Geymonat, F Krasucki… - … Journal for Numerical …, 2023 - Wiley Online Library
Identification of the mechanical properties of a viscoelastic material depends on
characteristics of the observed motion field within the object in question. For certain physical …

[HTML][HTML] Reconstruction of elasticity: a stochastic model-based approach in ultrasound elastography

M Lu, H Zhang, J Wang, J Yuan, Z Hu, H Liu - Biomedical engineering …, 2013 - Springer
Background The convectional strain-based algorithm has been widely utilized in clinical
practice. It can only provide the information of relative information of tissue stiffness …