US 12,263,034 B2
Ultrasonic method for quantifying the nonlinear shear wave elasticity of a medium, and device for implementing this method
Bo Zhang, Cabries (FR); Ling Tong, Aix-en-Provence (FR); Cyril Dolgoff, Ginasservis (FR); Hélène Sportouche, Marseilles (FR); and Jean-Pierre Henry, Marseilles (FR)
Assigned to SUPERSONIC IMAGINE, Aix-en-Provence (FR)
Appl. No. 17/784,050
Filed by SUPERSONIC IMAGINE, Aix-en-Provence (FR)
PCT Filed Dec. 10, 2020, PCT No. PCT/EP2020/085606
§ 371(c)(1), (2) Date Jun. 9, 2022,
PCT Pub. No. WO2021/116326, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 1914432 (FR), filed on Dec. 13, 2019.
Prior Publication US 2023/0026896 A1, Jan. 26, 2023
Int. Cl. A61B 8/08 (2006.01); A61B 8/00 (2006.01); G01S 7/52 (2006.01)
CPC A61B 8/085 (2013.01) [A61B 8/463 (2013.01); A61B 8/485 (2013.01); G01S 7/52022 (2013.01); G01S 7/52042 (2013.01); G01S 7/52073 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An ultrasonic method for quantifying the nonlinear shear wave elasticity of a medium, the method comprising:
collecting a temporal succession of shear wave elasticity data from the medium,
applying a variable external pressure to successively change a deformation of the medium according to a predetermined sequence of deformations during the collection of shear waves,
observing the evolution of real deformation,
quantifying the nonlinear elasticity of the medium as a function of the temporal succession of data and the evolution of deformation; and
determining a malignant nature of the medium based on the quantified nonlinear elasticity of the medium.