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:
May. 11, 2021

Filed:

Jul. 10, 2019
Applicant:

The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);

Inventors:

Benjamin Zahneisen, Portola Valley, CA (US);

Dominik Fleischmann, Palo Alto, CA (US);

Kathrin Baeumler, Portola Valley, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06N 3/04 (2006.01); G06T 5/00 (2006.01); G06T 7/00 (2017.01); G06F 17/15 (2006.01);
U.S. Cl.
CPC ...
G06T 5/006 (2013.01); G06F 17/15 (2013.01); G06N 3/04 (2013.01); G06T 7/0012 (2013.01);
Abstract

A method for magnetic resonance imaging (MRI) includes performing an echo planar imaging acquisition using inverted up/down phase encoding directions and reconstructing acquired images having geometric distortions along the phase encoding directions due to off-resonant spins; feed-forward estimating by a convolutional neural network (CNN) a phase distortion map from the acquired images; where the CNN is trained to minimize a similarity metric between un-warped up/down image pairs; and performing geometric distortion correction of the acquired images using the phase distortion map to unwarp the acquired images.


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