Non-identifiability of the Rayleigh damping material model in Magnetic Resonance Elastography

Petrov, Andrii Y.; Chase, J. Geoffrey; Sellier, Mathieu; Docherty, Paul

doi:10.1016/j.mbs.2013.08.012

Cited by 11 publications

(3 citation statements)

References 47 publications

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“…Full simultaneous three-parameter RD reconstruction is not identifiable with single frequency input data (Petrov et al, 2013). Collecting and terms from Eq.…”

Section: Parametric-based Identificationmentioning

confidence: 99%

“…It has been demonstrated that the RD model is nonidentifiable given only single frequency data (Petrov et al, 2013), which is the typical approach in a range of biomedical elastographic inverse problems (Van Houten et al, 2011). However, it should be noted that single frequency data is very appealing venue for MRE as it is fast and only subjects the patient to a single test.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Imaging of Rayleigh damping properties of the in vivo brain using parametric Magnetic Resonance Elastography.

Petrov

Docherty

Sellier

et al. 2014

IFAC Proceedings Volumes

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“…Full simultaneous three-parameter RD reconstruction is not identifiable with single frequency input data (Petrov et al, 2013). Collecting and terms from Eq.…”

Section: Parametric-based Identificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Imaging of Rayleigh damping properties of the in vivo brain using parametric Magnetic Resonance Elastography.

Petrov

Docherty

Sellier

et al. 2014

IFAC Proceedings Volumes

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“…It is particularly effective at measuring the response of viscoelastic materials such as soft tissues [41]. Rheology can also be undertaken in vivo via magnetic resonance imaging (MRI) [42][43][44][45]. MRI has been used to assess the brain's kinematic response to very mild impacts in vivo [46].…”

Section: Introductionmentioning

confidence: 99%

A Novel Experimental Approach for the Measurement of Vibration-Induced Changes in the Rheological Properties of Ex Vivo Ovine Brain Tissue

Lilley,

Kabaliuk,

Reynaud

et al. 2024

Sensors

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Increased incidence of traumatic brain injury (TBI) imposes a growing need to understand the pathology of brain trauma. A correlation between the incidence of multiple brain traumas and rates of behavioural and cognitive deficiencies has been identified amongst people that experienced multiple TBI events. Mechanically, repetitive TBIs may affect brain tissue in a similar way to cyclic loading. Hence, the potential susceptibility of brain tissue to mechanical fatigue is of interest. Although temporal changes in ovine brain tissue viscoelasticity and biological fatigue of other tissues such as tendons and arteries have been investigated, no methodology currently exists to cyclically load ex vivo brain tissue. A novel rheology-based approach found a consistent, initial stiffening response of the brain tissue before a notable softening when subjected to a subsequential cyclic rotational shear. History dependence of the mechanical properties of brain tissue indicates susceptibility to mechanical fatigue. Results from this investigation increase understanding of the fatigue properties of brain tissue and could be used to strengthen therapy and prevention of TBI, or computational models of repetitive head injuries.

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Some Geometric Inverse Problems for the Lamé System with Applications in Elastography

Doubova

Fernández-Cara

2018

Appl Math Optim

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Non-identifiability of the Rayleigh damping material model in Magnetic Resonance Elastography

Cited by 11 publications

References 47 publications

Imaging of Rayleigh damping properties of the in vivo brain using parametric Magnetic Resonance Elastography.

Imaging of Rayleigh damping properties of the in vivo brain using parametric Magnetic Resonance Elastography.

A Novel Experimental Approach for the Measurement of Vibration-Induced Changes in the Rheological Properties of Ex Vivo Ovine Brain Tissue

Some Geometric Inverse Problems for the Lamé System with Applications in Elastography

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