The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 13, 2022

Filed:

Feb. 26, 2019
Applicant:

Echosens, Paris, FR;

Inventors:

Laurent Sandrin, Bourg-la-Reine, FR;

Hugo Bernard Martin Loree, Paris, FR;

Assignee:

ECHOSENS, Paris, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 8/00 (2006.01); A61B 8/08 (2006.01);
U.S. Cl.
CPC ...
A61B 8/485 (2013.01); A61B 8/085 (2013.01); A61B 8/4444 (2013.01);
Abstract

A hybrid elastography method includes application of a continuous low frequency vibration and generation, using an ultrasonic transducer in contact with the viscoelastic medium, of a first series of ultrasonic acquisitions, the first series of ultrasonic acquisitions including groups of ultrasonic acquisitions, the groups of ultrasonic acquisitions being generated with a first repetition rate, each group of ultrasonic acquisitions including at least one acquisition, the continuous vibration generating an elastic wave within the viscoelastic medium; application of a low frequency pulse and generation, using the ultrasonic transducer, of a second series of ultrasonic acquisitions, the ultrasonic acquisitions composing the second series being generated with a second repetition rate, the low frequency pulse generating a transient shear wave propagating within the viscoelastic medium; the continuous vibration applied by the first vibrator being stopped before the application of the low frequency pulse.


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