JP7646477B2 - 磁気共鳴イメージング装置 - Google Patents

磁気共鳴イメージング装置 Download PDF

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Publication number
JP7646477B2
JP7646477B2 JP2021107450A JP2021107450A JP7646477B2 JP 7646477 B2 JP7646477 B2 JP 7646477B2 JP 2021107450 A JP2021107450 A JP 2021107450A JP 2021107450 A JP2021107450 A JP 2021107450A JP 7646477 B2 JP7646477 B2 JP 7646477B2
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Japan
Prior art keywords
laminate
magnetic field
magnetic
coil
axis direction
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JP2021107450A
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English (en)
Japanese (ja)
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JP2023005490A5 (cg-RX-API-DMAC7.html
JP2023005490A (ja
Inventor
研吾 後藤
学 青木
泰介 高柳
伸 星野
幸信 今村
博幸 竹内
武 中山
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Fujifilm Corp
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Fujifilm Corp
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Priority to JP2021107450A priority Critical patent/JP7646477B2/ja
Priority to CN202210632135.4A priority patent/CN115542214A/zh
Priority to US17/840,252 priority patent/US12025685B2/en
Publication of JP2023005490A publication Critical patent/JP2023005490A/ja
Publication of JP2023005490A5 publication Critical patent/JP2023005490A5/ja
Priority to JP2024232421A priority patent/JP2025036694A/ja
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Publication of JP7646477B2 publication Critical patent/JP7646477B2/ja
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/42—Screening
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/42—Screening
    • G01R33/421—Screening of main or gradient magnetic field
    • G01R33/4215—Screening of main or gradient magnetic field of the gradient magnetic field, e.g. using passive or active shielding of the gradient magnetic field
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/3802—Manufacture or installation of magnet assemblies; Additional hardware for transportation or installation of the magnet assembly or for providing mechanical support to components of the magnet assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiology & Medical Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
JP2021107450A 2021-06-29 2021-06-29 磁気共鳴イメージング装置 Active JP7646477B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2021107450A JP7646477B2 (ja) 2021-06-29 2021-06-29 磁気共鳴イメージング装置
CN202210632135.4A CN115542214A (zh) 2021-06-29 2022-06-06 磁共振成像装置
US17/840,252 US12025685B2 (en) 2021-06-29 2022-06-14 Magnetic resonance imaging apparatus
JP2024232421A JP2025036694A (ja) 2021-06-29 2024-12-27 磁気共鳴イメージング装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021107450A JP7646477B2 (ja) 2021-06-29 2021-06-29 磁気共鳴イメージング装置

Related Child Applications (1)

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JP2024232421A Division JP2025036694A (ja) 2021-06-29 2024-12-27 磁気共鳴イメージング装置

Publications (3)

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JP2023005490A JP2023005490A (ja) 2023-01-18
JP2023005490A5 JP2023005490A5 (cg-RX-API-DMAC7.html) 2023-11-01
JP7646477B2 true JP7646477B2 (ja) 2025-03-17

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JP2021107450A Active JP7646477B2 (ja) 2021-06-29 2021-06-29 磁気共鳴イメージング装置
JP2024232421A Pending JP2025036694A (ja) 2021-06-29 2024-12-27 磁気共鳴イメージング装置

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JP2024232421A Pending JP2025036694A (ja) 2021-06-29 2024-12-27 磁気共鳴イメージング装置

Country Status (3)

Country Link
US (1) US12025685B2 (cg-RX-API-DMAC7.html)
JP (2) JP7646477B2 (cg-RX-API-DMAC7.html)
CN (1) CN115542214A (cg-RX-API-DMAC7.html)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999052427A1 (fr) 1998-04-14 1999-10-21 Sumitomo Special Metals Co., Ltd. Generateur de champ magnetique pour irm
JP2002102205A (ja) 2000-10-02 2002-04-09 Hitachi Medical Corp 磁気共鳴イメージング装置
JP2003126060A (ja) 2001-10-23 2003-05-07 Hitachi Ltd 核磁気共鳴断層写真装置のマグネット
JP2013169240A (ja) 2012-02-17 2013-09-02 Hitachi Medical Corp 磁気共鳴イメージング装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2561591B2 (ja) 1991-12-27 1996-12-11 住友特殊金属株式会社 Ｍｒｉ用磁界発生装置
DE69419096T2 (de) * 1993-09-29 1999-10-28 Oxford Magnet Technology Ltd., Eynsham Verbesserungen an Magneten der Bilderzeugung mittels magnetischer Resonanz
JPH0831635A (ja) * 1994-07-08 1996-02-02 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
JP4214736B2 (ja) 2002-08-08 2009-01-28 日立金属株式会社 Ｍｒｉ用磁界発生装置
EP2179300B1 (en) * 2007-07-26 2013-04-10 Emscan Limited Magnet assembly
CN101388271A (zh) * 2007-09-14 2009-03-18 Ge医疗系统环球技术有限公司 磁体系统和mri设备
WO2013038960A1 (ja) * 2011-09-14 2013-03-21 株式会社 日立メディコ 磁気共鳴イメージング装置、その運転方法およびクエンチ防止装置
JP6368625B2 (ja) 2014-11-18 2018-08-01 株式会社日立製作所 磁気共鳴イメージング装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999052427A1 (fr) 1998-04-14 1999-10-21 Sumitomo Special Metals Co., Ltd. Generateur de champ magnetique pour irm
JP2002102205A (ja) 2000-10-02 2002-04-09 Hitachi Medical Corp 磁気共鳴イメージング装置
JP2003126060A (ja) 2001-10-23 2003-05-07 Hitachi Ltd 核磁気共鳴断層写真装置のマグネット
JP2013169240A (ja) 2012-02-17 2013-09-02 Hitachi Medical Corp 磁気共鳴イメージング装置

Also Published As

Publication number Publication date
JP2025036694A (ja) 2025-03-14
US20220413071A1 (en) 2022-12-29
US12025685B2 (en) 2024-07-02
CN115542214A (zh) 2022-12-30
JP2023005490A (ja) 2023-01-18

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