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Ultra-short echo time Magnetic Resonance Elastography

Abstract : Magnetic Resonance Elastography (MRE) is a valuable technique to quantitatively characterize mechanical properties of tissues based on the properties of shear waves propagation. In this study, a radial acquisition MRE sequence potentially able to quantify viscoelastic parameters of tissues whose T2 values are very short is proposed. To this end, an optimal control-based RF pulse is applied with a constant gradient during the mechanical excitation to simultaneously perform spatially selective excitation and motion encoding. Acquisition is started right after, enabling a very short TE. Results on phantom experiments demonstrated the feasibility of our ultra-short echo time MRE technique.
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https://hal.archives-ouvertes.fr/hal-02866021
Contributor : Pilar Sango Solanas <>
Submitted on : Friday, June 12, 2020 - 11:05:39 AM
Last modification on : Wednesday, July 8, 2020 - 12:44:09 PM

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  • HAL Id : hal-02866021, version 1

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Pilar Sango Solanas, Kevin Tse-Ve-Koon, Eric van Reeth, Cyrielle Caussy, O. Beuf. Ultra-short echo time Magnetic Resonance Elastography. ISMRM 2020 28th Annual Meeting & Exhibition, Aug 2020, Virtual Conference, France. ⟨hal-02866021⟩

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