Corpus ID: 237513620

Liquid-liver phantom: mimicking the viscoelastic dispersion of human liver for elastography in ultrasound and MRI

@inproceedings{Morr2021LiquidliverPM,
  title={Liquid-liver phantom: mimicking the viscoelastic dispersion of human liver for elastography in ultrasound and MRI},
  author={Anna S. Morr and Helge Herthum and Felix Schrank and Steffen Gorner and Matthias S. Anders and Markus Herbert Lerchbaumer and H.-P. Muller and Thomas Fischer and Klaus-V. Jenderka and Hendrik H. G. Hansen and Paul A. Janmey and J{\"u}rgen Braun and Ingolf Sack and Heiko Tzschatzsch},
  year={2021}
}
1. Department of Radiology, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany. 2. Institute of Medical Informatics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany. 3. Department of Engineering and Natural Sciences, University of Applied Sciences Merseburg, Eberhard-Leibnitz-Str… Expand

Figures and Tables from this paper

References

SHOWING 1-10 OF 21 REFERENCES
Assessment of liver viscoelasticity by using shear waves induced by ultrasound radiation force.
TLDR
Elasticity and viscosity measured between 95 Hz and 380 Hz by using SDUV are correlated and that elasticity measurements fromSDUV and TTP showed substantially similar performance in liver fibrosis staging, although elasticity calculated from SDUV provided a better area under the ROC curve. Expand
Two-Dimensional Time-Harmonic Elastography of the Human Liver and Spleen.
TLDR
Two-dimensional time-harmonic elastography of the liver and spleen is a promising method for measuring tissue stiffness at different states of blood flow and perfusion in a large tissue window and at great penetration depth. Expand
Repeatability and Agreement of Shear Wave Speed Measurements in Phantoms and Human Livers Across 6 Ultrasound 2-Dimensional Shear Wave Elastography Systems.
TLDR
There is good to excellent intersystem agreement of measured SWS in elastic phantoms and in vivo livers across 6 ultrasound 2D SWE systems, and test-retest repeatability was excellent for all systems. Expand
Derivation and analysis of viscoelastic properties in human liver: impact of frequency on fibrosis and steatosis staging
TLDR
A robust, model-based algorithm and a linear dispersion model are described and used to perform shear wave dispersion analysis in traditionally difficult-to-image subjects. Expand
Investigation of PolyVinyl Chloride Plastisol Tissue-Mimicking Phantoms for MR- and Ultrasound-Elastography
Objective: Realistic tissue-mimicking phantoms are essential for the development, the investigation and the calibration of medical imaging techniques and protocols. Because it requires taking bothExpand
Longitudinal stability of a multimodal visco-elastic polyacrylamide gel phantom for magnetic resonance and ultrasound shear-wave elastography
TLDR
The viscoelastic PAAm gel phantom made of polyacrylamide (PAAm) gel has the potential to be used as a quality assurance and quality control phantom for MRE and US SWE. Expand
Quantitative viscoelasticity mapping of human liver using supersonic shear imaging: preliminary in vivo feasibility study.
TLDR
This paper demonstrates the feasibility of in vivo quantitative mapping of liver viscoelasticity using the concept of supersonic shear wave imaging using a very high frame rate ultrasound imaging sequence capable of catching in real time the transient propagation of resulting shear waves. Expand
Real-Time Multifrequency MR Elastography of the Human Brain Reveals Rapid Changes in Viscoelasticity in Response to the Valsalva Maneuver
TLDR
This is the first report of viscoelasticity changes in brain tissue induced by physiological maneuvers known to alter ICP and detected by clinically applicable rt-MMRE, and shows that apnea and VM slightly alter brain properties toward a more rigid-solid behavior. Expand
Tomoelastography by multifrequency wave number recovery from time-harmonic propagating shear waves
TLDR
This work introduces an efficient way of processing wave images acquired by multifrequency magnetic resonance elastography (MMRE), which relies on wave number reconstruction at different harmonic frequencies followed by their amplitude-weighted averaging prior to inversion to reveal variations in tissue elasticity in a tomographic fashion. Expand
A compact 0.5 T MR elastography device and its application for studying viscoelasticity changes in biological tissues during progressive formalin fixation
To develop a method of compact tabletop magnetic resonance elastography (MRE) for rheological tests of tissue samples and to measure changes in viscoelastic powerlaw constants of liver and brainExpand
...
1
2
3
...