US 11,808,898 B2
Method for measuring an ultrasonic attenuation parameter guided by harmonic elastography, probe and device for the implementation of the method
Laurent Sandrin, Bourg-la-Reine (FR); and Stéphane Audiere, Paris (FR)
Assigned to ECHOSENS, Paris (FR)
Appl. No. 16/977,369
Filed by ECHOSENS, Paris (FR)
PCT Filed Feb. 26, 2019, PCT No. PCT/EP2019/054656
§ 371(c)(1), (2) Date Sep. 1, 2020,
PCT Pub. No. WO2019/166393, PCT Pub. Date Sep. 6, 2019.
Claims priority of application No. 1851822 (FR), filed on Mar. 2, 2018.
Prior Publication US 2021/0048518 A1, Feb. 18, 2021
Int. Cl. A61B 8/00 (2006.01); G01S 7/52 (2006.01); A61B 8/08 (2006.01)
CPC G01S 7/52042 (2013.01) [A61B 8/08 (2013.01); A61B 8/485 (2013.01); G01S 7/52079 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for measuring an ultrasonic attenuation parameter guided by harmonic elastography comprising applying, using a vibrator comprised in a probe in contact with a viscoelastic medium, a continuous low frequency vibration, the continuous low frequency vibration generating an elastic wave within the viscoelastic medium and generating, during the propagation of the elastic wave, using an ultrasonic transducer in contact with the viscoelastic medium, a series of ultrasonic acquisitions, said series of ultrasonic acquisitions including groups of ultrasonic acquisitions, the groups of ultrasonic acquisitions being generated with a repetition rate, each group of ultrasonic acquisitions including at least one acquisition, the ultrasonic attenuation parameter being measured from the ultrasonic acquisitions.