A tissue mechanics based method to improve tissue displacement estimation in ultrasound elastography

N Kheirkhah, SCH Dempsey, H Rivaz… - 2020 42nd Annual …, 2020 - ieeexplore.ieee.org
… Other tissue mechanics based methods were also developed which … to displacement field
time variations derived from tissue mechanics principles [11]. In [12], tissue incompressibility

Analytical estimation of out-of-plane strain in ultrasound elastography to improve axial and lateral displacement fields

N Kheirkhah, A Sadeghi-Naini… - 2020 42nd Annual …, 2020 - ieeexplore.ieee.org
… algorithms use this displacement data to generate images of the tissue elasticity properties.
… the accuracy of the tissue displacement estimation. Tissue incompressibility can be used as …

A heterogenous, time harmonic, nearly incompressible transverse isotropic finite element brain simulation platform for MR elastography

M McGarry, E Van Houten, C Guertler… - Physics in Medicine …, 2021 - iopscience.iop.org
… We also compare displacement fields simulated with isotropic material properties. … elastic
solids such as tissue. The nearly incompressible behavior of tissue is evidenced by the vastly …

Two-dimensional growth of incompressible and compressible soft biological tissues

N Firouzi, M Amabili - European Journal of Mechanics-A/Solids, 2024 - Elsevier
displacement vectors, R and d , are approximated in an element as follows:(32) R = ∑ I =
1 n e N I R I , d = ∑ I = 1 n e N I d I , where N I are the shape functions, d I the displacement

A novel tissue mechanics‐based method for improved motion tracking in quasi‐static ultrasound elastography

N Kheirkhah, S Dempsey, A Sadeghi‐Naini… - Medical …, 2023 - Wiley Online Library
… This includes a method proposed to estimate tissue lateral displacement field using
measured axial displacement field based on tissue incompressibility condition. The method …

A quasi-incompressible and quasi-inextensible finite element analysis of fibrous soft biological tissues

O Gültekin, B Rodoplu, H Dal - Biomechanics and Modeling in …, 2020 - Springer
… The finite element method based on standard displacement … quasi-incompressible and
quasi-inextensible formulation to the fibrous soft biological tissues, in particular, the arterial tissue. …

[HTML][HTML] Reconstruction of shear modulus and viscosity of biological tissues from displacement measurement

M Fushimi, T Nara - Measurement: Sensors, 2021 - Elsevier
… This is because of the assumption that tissues are incompressible, which is not the case …
displacement fields measured at different frequencies are combined to yield a single estimation

Mixed Kirchhoff stress–displacement–pressure formulations for incompressible hyperelasticity

PE Farrell, LF Gatica, BP Lamichhane… - Computer Methods in …, 2021 - Elsevier
… fully incompressible case. The mixed formulation is of Hu–Washizu type and it differs from
other approaches in that we use the Kirchhoff stress, displacement, … to classical displacement–…

In vivo mechanical response of thigh soft tissues under compression: A two-layer model allows an improved representation of the local tissue kinematics

A Segain, G Sciume, H Pillet, PY Rohan - Journal of the Mechanical …, 2024 - Elsevier
… the force/displacement relationship of the soft tissue submitted to indentation at the global
(whole … seems to be organised into globules with an incompressible behaviour. Further work is …

Quantifying stability of parameter estimates for in vivo nearly incompressible transversely-isotropic brain MR elastography

D Jyoti, M McGarry, E Van Houten… - Biomedical physics …, 2022 - iopscience.iop.org
… the mechanical properties of tissue using displacement fields measured with phase …
displacement data from a single displacement field and performed the parameter stability calculation