AustralieFrV1, Main, Exploration, bibRecord, 008798

In vivo brain viscoelastic properties measured by magnetic resonance elastography

Identifieur interne : 008798 ( Main/Exploration ); précédent : 008797; suivant : 008799

In vivo brain viscoelastic properties measured by magnetic resonance elastography

Auteurs : Michael A. Green [Australie] ; Lynne E. Bilston [Australie] ; Ralph Sinkus [France]

Source :

NMR in Biomedicine [ 0952-3480 ] ; 2008-08.

RBID : ISTEX:6E168940239E9103606010FB30C99C5E3C6C2522

Descripteurs français

Wicri :
- topic : Droit d'auteur.

English descriptors

Abstract

Magnetic resonance elastography (MRE) is a non‐invasive imaging technique used to visualise and quantify mechanical properties of tissue, providing information beyond what can be currently achieved with standard MR sequences and could, for instance, provide new insight into pathological processes in the brain. This study uses the MRE technique at 3 T to extract the complex shear modulus for in vivo brain tissue utilizing a full three‐dimensional approach to reconstruction, removing contributions of the dilatational wave by application of the curl operator. A calibrated phantom is used to benchmark the MRE measurements, and in vivo results are presented for healthy volunteers. The results provide data for in vivo brain storage modulus (G′), finding grey matter (3.1 kPa) to be significantly stiffer than white matter (2.7 kPa). The first in vivo loss modulus (G″) measurements show no significant difference between grey matter (2.5 kPa) and white matter (2.5 kPa). Copyright © 2008 John Wiley & Sons, Ltd.

Url:

https://api.istex.fr/document/6E168940239E9103606010FB30C99C5E3C6C2522/fulltext/pdf

DOI: 10.1002/nbm.1254

Affiliations:

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Le document en format XML

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<author><name sortKey="Bilston, Lynne E" sort="Bilston, Lynne E" uniqKey="Bilston L" first="Lynne E." last="Bilston">Lynne E. Bilston</name>
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 brain viscoelastic properties measured by magnetic resonance elastography</title>
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<term>Brain diseases</term>
<term>Brain matter</term>
<term>Brain tissue</term>
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<term>Centre</term>
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<term>Present data</term>
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<term>Radial position</term>
<term>Reconstruction method</term>
<term>Reconstruction technique</term>
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<term>Resonance elastography</term>
<term>Rheometry</term>
<term>Rheometry measurements</term>
<term>Right hand side</term>
<term>Scan resolution</term>
<term>Shear elasticity</term>
<term>Shear viscosity</term>
<term>Shear waves</term>
<term>Skeletal muscle</term>
<term>Small magnitude</term>
<term>Smallest wavelengths</term>
<term>Spatial direction</term>
<term>Spatial directions</term>
<term>Square root</term>
<term>Standard deviations</term>
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<term>Storage modulus</term>
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<term>Test subject</term>
<term>Tissue properties</term>
<term>Total amplitude</term>
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<term>Vivo</term>
<term>Vivo brain</term>
<term>Vivo measurements</term>
<term>Wave amplitude</term>
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<term>Amplitude</term>
<term>Arbitrary time point</term>
<term>Axial plane</term>
<term>Biomed</term>
<term>Brain diseases</term>
<term>Brain matter</term>
<term>Brain tissue</term>
<term>Central region</term>
<term>Centre</term>
<term>Complex shear modulus</term>
<term>Copyright</term>
<term>Dilatational</term>
<term>Dilatational wave</term>
<term>Dilatational wave contributions</term>
<term>Dilatational waves</term>
<term>Ehman</term>
<term>Elasticity</term>
<term>Elasticity values</term>
<term>Elastography</term>
<term>Example image</term>
<term>Excitation</term>
<term>Excitation frequency</term>
<term>Frequency space</term>
<term>Further investigations</term>
<term>Grey matter</term>
<term>Harmonic oscillator simulations</term>
<term>Healthy volunteers</term>
<term>Higher frequencies</term>
<term>Horizontal line</term>
<term>Human brain</term>
<term>Imaging</term>
<term>Inclusion</term>
<term>John wiley sons</term>
<term>Loss modulus</term>
<term>Ltering method</term>
<term>Magn</term>
<term>Magn reson</term>
<term>Magn reson imaging</term>
<term>Magnetic resonance elastography</term>
<term>Magnitude image</term>
<term>Matter brain tissue</term>
<term>Mechanical properties</term>
<term>Mechanical transducer</term>
<term>Modulus</term>
<term>Phantom</term>
<term>Pixel</term>
<term>Preliminary results</term>
<term>Present data</term>
<term>Pressure term</term>
<term>Previous studies</term>
<term>Radial position</term>
<term>Reconstruction method</term>
<term>Reconstruction technique</term>
<term>Research institute</term>
<term>Reson</term>
<term>Resonance elastography</term>
<term>Rheometry</term>
<term>Rheometry measurements</term>
<term>Right hand side</term>
<term>Scan resolution</term>
<term>Shear elasticity</term>
<term>Shear viscosity</term>
<term>Shear waves</term>
<term>Skeletal muscle</term>
<term>Small magnitude</term>
<term>Smallest wavelengths</term>
<term>Spatial direction</term>
<term>Spatial directions</term>
<term>Square root</term>
<term>Standard deviations</term>
<term>Stiffer inclusions</term>
<term>Storage modulus</term>
<term>Strain waves</term>
<term>Test subject</term>
<term>Tissue properties</term>
<term>Total amplitude</term>
<term>Viscoelastic</term>
<term>Viscoelastic parameters</term>
<term>Viscoelastic properties</term>
<term>Viscous properties</term>
<term>Vivo</term>
<term>Vivo brain</term>
<term>Vivo measurements</term>
<term>Wave amplitude</term>
<term>White matter</term>
<term>White matter elasticity</term>
<term>White matter regions</term>
<term>White matter values</term>
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<front><div type="abstract" xml:lang="en">Magnetic resonance elastography (MRE) is a non‐invasive imaging technique used to visualise and quantify mechanical properties of tissue, providing information beyond what can be currently achieved with standard MR sequences and could, for instance, provide new insight into pathological processes in the brain. This study uses the MRE technique at 3 T to extract the complex shear modulus for in vivo brain tissue utilizing a full three‐dimensional approach to reconstruction, removing contributions of the dilatational wave by application of the curl operator. A calibrated phantom is used to benchmark the MRE measurements, and in vivo results are presented for healthy volunteers. The results provide data for in vivo brain storage modulus (G′), finding grey matter (3.1 kPa) to be significantly stiffer than white matter (2.7 kPa). The first in vivo loss modulus (G″) measurements show no significant difference between grey matter (2.5 kPa) and white matter (2.5 kPa). Copyright © 2008 John Wiley & Sons, Ltd.</div>
</front>
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In vivo brain viscoelastic properties measured by magnetic resonance elastography

In vivo brain viscoelastic properties measured by magnetic resonance elastography

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri