Brain magnetic resonance elastography based on Rayleigh damping material model (2012)
Type of ContentConference Contributions - Other
PublisherUniversity of Canterbury. Mechanical Engineering
This research study focuses on application of the subzone based Magnetic Resonance Elastography (MRE) using Rayleigh damped (RD) material model to quantify shear stiffness, damping behavior and elastic energy attenuation mechanism of the intracranial tissue in the in vivo healthy brain. The octahedral shear strain (OSS) SNR calculation confirmed significant attenuation of the shear strain waves in the deeper brain region. The measurement of brain viscoelastic properties revealed that ventricles exhibits much lower elasticity (0.8 kPa) than the surrounding white and gray matter (2.6 kPa). We conclude that RD MRE show promise for potential in vivo determination of different brain tissue types, and the possibility of providing additional diagnostic tools.
CitationPetrov, A., Chase, J.G., Sellier, M., Latta, P., Gruwell, M., McGarry, M., Van Houten, E.E.W. (2012) Brain magnetic resonance elastography based on Rayleigh damping material model. Melbourne, Australia: 20th Annual Meeting of the International Society for Magnetic Resonance in Medicine (ISMRM), 5-11 May 2012.
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ANZSRC Fields of Research11 - Medical and Health Sciences::1103 - Clinical Sciences::110320 - Radiology and Organ Imaging
02 - Physical Sciences::0299 - Other Physical Sciences::029904 - Synchrotrons; Accelerators; Instruments and Techniques
40 - Engineering::4003 - Biomedical engineering::400303 - Biomechanical engineering
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Petrov, A.; Chase, Geoff; Sellier, M.; Docherty, P.D. (University of Canterbury. Mechanical Engineering, 2013)Magnetic Resonance Elastography (MRE) is an emerging imaging modality for quantifying soft tissue elasticity deduced from displacement measurements within the tissue obtained by phase sensitive Magnetic Resonance Imaging ...
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