Imaging method and apparatus using shear waves

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United States of America Patent

PATENT NO 9140781
APP PUB NO 20130031981A1
SERIAL NO

13642478

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Abstract

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An imaging method using shear waves for observing a viscoelastic medium, comprising:

    several successive excitation steps j during which elastic shear waves are generated respectively at different excitation loci (Lj) in the viscoelastic medium by an imaging device, the different excitation loci being separated from one another by a maximum distance Dm,an imaging step corresponding to each excitation step j, in which a set j of successive raw images Imj(tk) of the viscoelastic medium at times tk are determined during propagation of the shear wave, the raw images having a resolution R which is larger than the maximum distance Dm,an averaging step in which raw images Imj(tk) corresponding to the same relative time tk are averaged to determine an average image Im′(tk).

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITÉ PARIS CITÉ85 BOULEVARD SAINT-GERMAIN PARIS 75006

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bercoff, Jeremy Aix-en-Provence, FR 16 213
Fink, Mathias A Meudon, FR 5 188
Montaldo, Gabriel Paris, FR 8 130
Tanter, Mickael Bagneux, FR 35 450

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