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Title:
IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND MAGNETIC RESONANCE IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/102658
Kind Code:
A1
Abstract:
The purpose of the present invention is to accurately calculate magnetic susceptibility without significantly increasing calculation time. This image processing device includes an image processing unit that generates, from an image generated on the basis of a magnetic resonance signal emitted from a subject, a magnetic susceptibility image which indicates the magnetic susceptibility of at least one tissue of the subject. The image processing unit includes: an image separating unit that separates, from the image, a frequency image and a specific tissue image which indicates the rate at which a predetermined specific tissue is contained; an adjusting unit that calculates a post-subtraction frequency image in which frequency change due to the specific tissue is subtracted from the frequency image; and an image conversion unit that calculates a specific magnetic susceptibility image which indicates the magnetic susceptibility of the specific tissue on the basis of the specific tissue image and calculates a post-subtraction magnetic susceptibility image on the basis of the post-subtraction frequency image.

Inventors:
SATOH RYOTA (JP)
SHIRAI TORU (JP)
OCHI HISAAKI (JP)
Application Number:
PCT/JP2018/029449
Publication Date:
May 31, 2019
Filing Date:
August 06, 2018
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
A61B5/055
Domestic Patent References:
WO2017056996A12017-04-06
Foreign References:
JP2017070386A2017-04-13
JP2016520395A2016-07-14
Other References:
SATO, RYOTA ET AL.: "Quantitative Susceptibility Mapping Using the Multiple Dipole-Inversion Combination with k-scape Segmentation Method", MAGNETIC RESONANCE IN MEDICAL SCIENCES, vol. 16, no. 4, 27 March 2017 (2017-03-27), pages 340 - 350
Attorney, Agent or Firm:
SANNOZAKA PATENT LAW FIRM (JP)
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