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:
Apr. 12, 2016

Filed:

Apr. 15, 2011
Applicants:

Christopher Wernik, Toronto, CA;

Venkat Swaminathan, Toronto, CA;

Graham Wright, Toronto, CA;

Christopher Macgowan, Toronto, CA;

Inventors:

Christopher Wernik, Toronto, CA;

Venkat Swaminathan, Toronto, CA;

Graham Wright, Toronto, CA;

Christopher MacGowan, Toronto, CA;

Assignees:

The Hospital for Sick Children, Toronto, Ontario, CA;

Sunnybrook Health Sciences Centre, Toronto, Ontario, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/483 (2006.01); A61B 5/026 (2006.01); A61B 5/145 (2006.01); A61B 5/00 (2006.01); G01R 33/50 (2006.01); G01R 33/565 (2006.01); G01R 33/28 (2006.01); A61B 5/02 (2006.01); A61B 5/11 (2006.01); G01R 33/563 (2006.01);
U.S. Cl.
CPC ...
G01R 33/483 (2013.01); A61B 5/0263 (2013.01); A61B 5/14542 (2013.01); A61B 5/7257 (2013.01); G01R 33/28 (2013.01); G01R 33/50 (2013.01); G01R 33/56509 (2013.01); A61B 5/02007 (2013.01); A61B 5/1128 (2013.01); G01R 33/56316 (2013.01);
Abstract

A method and system for determination of oxygen saturation in blood flowing in a vessel using magnetic resonance (MR). An MR image sequence is acquired with different echo time (TE) encoding, and different Fourier velocity encoding (FVE). A Fourier transformation is applied along the velocity dimension to determine a velocity distribution of tissue signals in each voxel of the image sequence. Tissue signals indicative of moving tissues are separated from tissue signals indicative of static tissue, based on the velocity distribution. Oxygen saturation in blood may then be determined using only the tissue signals indicative of flowing blood.


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