Title:
磁気共鳴イメージング装置及び磁気共鳴イメージング装置のアーティファクト抑制方法
Document Type and Number:
Japanese Patent JP6571434
Kind Code:
B2
Abstract:
According to at least one of embodiments, a magnetic resonance imaging apparatus includes a superconducting magnet configured to generate a static magnetic field; a cryocooler configured to cool down the superconducting magnet in a refrigeration cycle in which mechanical fluctuation with a predetermined period is included; a sequence controller configured to acquire magnetic resonance signals for generating a diagnostic image from an object; and processing circuitry configured to correct phase fluctuation included in the magnetic resonance signals for generating a diagnostic image acquired by the sequence controller, the phase fluctuation being generated by periodic fluctuation of the static magnetic field caused by mechanical fluctuation of the cryocooler.
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Inventors:
Haruji Nozaki
Satoshi Sugiura
Satoshi Sugiura
Application Number:
JP2015147563A
Publication Date:
September 04, 2019
Filing Date:
July 27, 2015
Export Citation:
Assignee:
Canon Medical Systems Corporation
International Classes:
A61B5/055
Domestic Patent References:
JP2005334101A | ||||
JP2001218751A | ||||
JP2001187040A |
Foreign References:
US20010028249 |
Attorney, Agent or Firm:
Patent business corporation Tokyo International Patent Office