公开(公告)号：US10603013B2

公开(公告)日：2020-03-31

申请号：US14039584

申请日：2013-09-27

申请人： SUPER SONIC IMAGINE

发明人： Jeremy Bercoff ,  David Savery ,  Mickael Tanter ,  Jean-Luc Gennisson ,  Mathias Fink ,  Claude Cohen-Bacrie

IPC分类号： A61B8/08 ,  G06T7/00 ,  G01N29/44 ,  A61B8/00 ,  G01S15/89 ,  G01S7/52 ,  A61B5/00 ,  G01N29/34 ,  G01N29/36

摘要： A method for measuring a mean visco-elasticity value for a soft material uses a single probe carrying at least one transducer. At least one burst of mechanical vibrations is induced in a constraint zone in order to generate internal shear waves in the tissue propagating from the constraint zone into the tissue. The transient tissue displacements are measured with a transducer in at least one first measurement zone in the tissue, the first measurement zone being located away from the constraint zone. A mean visco-elasticity of the region of the tissue situated between the constraint zone and the first measurement zone is estimated from the measured transient tissue displacements of the tissue in the first measurement zone.

公开(公告)号：US11103216B2

公开(公告)日：2021-08-31

申请号：US15539170

申请日：2014-12-24

申请人： SUPER SONIC IMAGINE

发明人： Jeremy Bercoff ,  Jean-Pierre Henry

IPC分类号： A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  A61B8/00

摘要： A shear wave elastography method for imaging an observation field in an anisotropic medium, including an initial ultrasonic acquisition step during which initial physical parameters are acquired in at least one region of interest; a spatial characterization step during which a set of spatial characteristics of the anisotropic medium is determined on the basis of the initial physical parameter; an excitation substep during which an shear wave is generated inside the anisotropic medium on the basis of the set of spatial characteristics; and an observation substep during which the propagation of the shear wave is observed simultaneously at a multitude of points in the observation field.