US 11,940,520 B2
Magnetic resonance imaging device, image processing device, and image processing method
Ryota Sato, Chiba (JP); Suguru Yokosawa, Chiba (JP); Toru Shirai, Chiba (JP); Kazuho Kamba, Chiba (JP); Yoshitaka Sato, Chiba (JP); and Masahiro Takizawa, Chiba (JP)
Assigned to FUJIFILM Healthcare Corporation, Chiba (JP)
Filed by FUJIFILM Healthcare Corporation, Kashiwa (JP)
Filed on Aug. 22, 2022, as Appl. No. 17/892,495.
Claims priority of application No. 2021-139158 (JP), filed on Aug. 27, 2021.
Prior Publication US 2023/0062864 A1, Mar. 2, 2023
Int. Cl. G01R 33/56 (2006.01); A61B 5/055 (2006.01); G01R 33/565 (2006.01); G06T 11/00 (2006.01)
CPC G01R 33/565 (2013.01) [A61B 5/055 (2013.01); G06T 11/005 (2013.01); G06T 2207/10088 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A magnetic resonance imaging device, comprising:
an imaging unit configured to measure a nuclear magnetic resonance signal generated from a subject; and
an image processing unit configured to generate an image of the subject using the nuclear magnetic resonance signal acquired by the imaging unit, wherein
the image processing unit includes:
a phase correction unit configured to execute phase correction for each of a plurality of complex images obtained by performing imaging a plurality of times;
a complex addition unit configured to add the plurality of complex images obtained after the phase correction;
a smoothing unit configured to execute two or more types of smoothing processing with different smoothing degrees on the complex image or an image having phase information of the complex image; and
a weighted addition unit configured to execute weighted addition on results obtained by the smoothing unit smoothing with different smoothing degrees, and
the phase correction unit is configured to execute phase correction on the complex image using a phase of a complex image obtained after the weighted addition by the weighted addition unit.