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:
Feb. 08, 2022

Filed:

Mar. 26, 2020
Applicant:

Canon Medical Systems Corporation, Otawara, JP;

Inventor:

Mitsuhiro Bekku, Utsunomiya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/565 (2006.01); G06T 11/00 (2006.01); G01R 33/48 (2006.01); G01R 33/56 (2006.01);
U.S. Cl.
CPC ...
G01R 33/56545 (2013.01); G01R 33/4828 (2013.01); G01R 33/5608 (2013.01); G06T 11/005 (2013.01);
Abstract

In one embodiment, an MRI apparatus includes processing circuitry configured to: calculate phase correction data, which includes information on phase rotation amount due to non-uniformity of a static magnetic field, from MR signals; generate an image by using the phase correction data and the MR signals such that a signal from at least one of substances having different magnetic resonance frequencies in an imaging region of an object is suppressed in the image; generate first phase correction data composed of phase data that correspond to phase rotation amount selected from choices of phase rotation amount; calculate discontinuity of the first phase correction data; and generate second phase correction data by substituting at least part of the first phase correction data with non-selected phase data, which corresponds to phase rotation amount being not selected among the choices of phase rotation amount, depending on the discontinuity.


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