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:
Nov. 29, 2022

Filed:

Dec. 19, 2018
Applicant:

The University of British Columbia, Vancouver, CA;

Inventors:

Septimiu Salcudean, Vancouver, CA;

Robert Rohling, Vancouver, CA;

Mohammad Honarvar, Vancouver, CA;

Julio Raul Lobo, Vancouver, CA;

Caitlin Marie Schneider, Vancouver, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 8/08 (2006.01); A61B 8/14 (2006.01); A61B 8/00 (2006.01); G01S 7/52 (2006.01);
U.S. Cl.
CPC ...
A61B 8/485 (2013.01); A61B 8/08 (2013.01); A61B 8/085 (2013.01); A61B 8/14 (2013.01); A61B 8/4209 (2013.01); A61B 8/4218 (2013.01); A61B 8/4227 (2013.01); A61B 8/461 (2013.01); A61B 8/483 (2013.01); A61B 8/54 (2013.01); G01S 7/52042 (2013.01);
Abstract

A system useful for performing ultrasound elastography of organs such as the liver allows efficient and robust data acquisition. The system may be applied to perform real-time, noninvasive ultrasound imaging of the liver in humans. Steady-state, shear wave absolute elastography is used to measure the Young's modulus of the liver tissue. This method involves the use of an external exciter or vibrator to shake the tissue and generate a shear wave. Accurate placement of an ultrasound transducer facilitates measurement of the tissue motion due to the shear wave. The stiffness of tissues in the region being imaged may be computed from the measured tissue motions. The following innovations address both vibrator and transducer placement, as well as some specific methods to ensure adequate wave propagation, in order to obtain accurate and consistent measurements.


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