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1. (WO2008139245) METHOD AND DEVICE FOR MEASURING A MEAN VALUE OF VISCO-ELASTICITY OF A REGION OF INTEREST

Pub. No.:    WO/2008/139245    International Application No.:    PCT/IB2007/002746
Publication Date: Fri Nov 21 00:59:59 CET 2008 International Filing Date: Thu May 17 01:59:59 CEST 2007
IPC: A61B 8/08
Applicants: SUPER SONIC IMAGINE
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
BERCOFF, Jeremy
SAVERY, David
TANTER, MickaëL
GENNISON, Jean-Luc
FINK, Mathias
COHEN-BACRIE, Claude
Inventors: BERCOFF, Jeremy
SAVERY, David
TANTER, MickaëL
GENNISON, Jean-Luc
FINK, Mathias
COHEN-BACRIE, Claude
Title: METHOD AND DEVICE FOR MEASURING A MEAN VALUE OF VISCO-ELASTICITY OF A REGION OF INTEREST
Abstract:
The invention relates to a method for measuring a mean visco-elasticity value for a soft material. Said method using a single probe carrying at least one transducer comprises the steps of : a) inducing, in a constraint zone, at least one burst of mechanical vibrations in order to generate internal shear waves in the tissue propagating from said constraint zone into the tissue, bl) measuring, with said transducer, the transient tissue displacements in at least one first measurement zone in the tissue, said first measurement zone being located away from said constraint zone, c) estimating a mean visco-elasticity of the region of the tissue situated between the constraint zone and the first measurement zone from said measured transient tissue displacements of the tissue in the first measurement zone.