JP3856505B2 - 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
JP3856505B2
JP3856505B2 JP26320596A JP26320596A JP3856505B2 JP 3856505 B2 JP3856505 B2 JP 3856505B2 JP 26320596 A JP26320596 A JP 26320596A JP 26320596 A JP26320596 A JP 26320596A JP 3856505 B2 JP3856505 B2 JP 3856505B2
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JP
Japan
Prior art keywords
magnet
magnetic field
coil winding
cylindrical
magnetic resonance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP26320596A
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English (en)
Japanese (ja)
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JPH09192117A5 (enExample
JPH09192117A (ja
Inventor
ジョーゼフ・ダブリュ・カールソン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba America MRI Inc
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Toshiba America MRI Inc
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Publication date
Application filed by Toshiba America MRI Inc filed Critical Toshiba America MRI Inc
Publication of JPH09192117A publication Critical patent/JPH09192117A/ja
Publication of JPH09192117A5 publication Critical patent/JPH09192117A5/ja
Application granted granted Critical
Publication of JP3856505B2 publication Critical patent/JP3856505B2/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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
    • 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)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP26320596A 1995-10-03 1996-10-03 磁気共鳴イメージング装置 Expired - Lifetime JP3856505B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US538611 1990-06-15
US08/538,611 US5799653A (en) 1995-10-03 1995-10-03 Magnetic resonance imaging apparatus with decreased patient claustrophobia and increased access to patient

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2006127516A Division JP4188384B2 (ja) 1995-10-03 2006-05-01 磁気共鳴イメージング装置

Publications (3)

Publication Number Publication Date
JPH09192117A JPH09192117A (ja) 1997-07-29
JPH09192117A5 JPH09192117A5 (enExample) 2004-08-05
JP3856505B2 true JP3856505B2 (ja) 2006-12-13

Family

ID=24147651

Family Applications (2)

Application Number Title Priority Date Filing Date
JP26320596A Expired - Lifetime JP3856505B2 (ja) 1995-10-03 1996-10-03 磁気共鳴イメージング装置
JP2006127516A Expired - Lifetime JP4188384B2 (ja) 1995-10-03 2006-05-01 磁気共鳴イメージング装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2006127516A Expired - Lifetime JP4188384B2 (ja) 1995-10-03 2006-05-01 磁気共鳴イメージング装置

Country Status (3)

Country Link
US (1) US5799653A (enExample)
JP (2) JP3856505B2 (enExample)
GB (1) GB2306007A (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6078177A (en) * 1998-01-05 2000-06-20 Picker International, Inc. Flared gradient coil set with a finite shield current
CA2392078C (en) 1999-11-03 2005-02-22 Nexicor Llc Hand held induction tool
US6288624B1 (en) * 1999-11-23 2001-09-11 Picker Nordstar Corporation Enlongated field of view open magnetic resonance imaging system with dipole magnet
JP4567903B2 (ja) * 2001-03-22 2010-10-27 東京電力株式会社 超電導コイル装置
US7639015B2 (en) * 2003-07-18 2009-12-29 Mks Instruments, Inc. Methods and systems for stabilizing an amplifier
US7498810B2 (en) * 2004-09-11 2009-03-03 General Electric Company Systems, methods and apparatus for specialized magnetic resonance imaging with dual-access conical bore
JP4566024B2 (ja) * 2005-02-28 2010-10-20 株式会社日立メディコ 磁気共鳴イメージング装置
JP2007026818A (ja) * 2005-07-14 2007-02-01 Nhv Corporation 磁場勾配を形成する電磁石
WO2007076252A1 (en) * 2005-12-20 2007-07-05 Koninklijke Philips Electronics, N.V. Magnetic resonance scanner with a longitudinal magnetic field gradient system
JP4632363B2 (ja) * 2005-12-28 2011-02-16 Ｎｅｃトーキン株式会社 磁界発生コイル
US7825760B2 (en) * 2006-09-07 2010-11-02 Bird Mark D Conical magnet
JP4838684B2 (ja) * 2006-10-03 2011-12-14 日立金属株式会社 磁界発生装置
US8330566B2 (en) * 2009-02-02 2012-12-11 Northrop Grumman Guidance And Electronics Company, Inc. Magnetic solenoid for generating a substantially uniform magnetic field
US8487729B2 (en) * 2009-02-02 2013-07-16 Northrop Grumman Guidance & Electronics Magnetic solenoid for generating a substantially uniform magnetic field
US10416253B2 (en) 2016-11-22 2019-09-17 Quantum Design International, Inc. Conical access split magnet system
GB2580047B (en) 2018-12-20 2021-02-24 Siemens Healthcare Ltd Cryostat for superconductive magnet
EP4113146B1 (en) * 2021-06-30 2025-05-07 Siemens Healthineers AG Magnetic resonance imaging device with a concave-shaped field generation unit

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121367B1 (en) * 1983-03-30 1990-05-23 Picker International Limited Nuclear magnetic resonance imaging apparatus
US4710716A (en) * 1985-09-20 1987-12-01 Elscint Ltd. Slice orientation selection arrangement
EP0288729B1 (de) * 1987-03-30 1991-11-27 Siemens Aktiengesellschaft Quenchausbreitungseinrichtung für einen supraleitenden Magneten
US4829252A (en) * 1987-10-28 1989-05-09 The Regents Of The University Of California MRI system with open access to patient image volume
JPH0217038A (ja) * 1988-07-06 1990-01-22 Toshiba Corp 磁気共鳴イメージング装置
US4985678A (en) * 1988-10-14 1991-01-15 Picker International, Inc. Horizontal field iron core magnetic resonance scanner
US5307039A (en) * 1992-09-08 1994-04-26 General Electric Company Frustoconical magnet for magnetic resonance imaging
US5305749B1 (en) * 1992-09-24 2000-05-02 Univ California Side-loading of patient into mri c-magnet while maintaining adjacent open accessibility to patient
US5448214A (en) * 1994-06-15 1995-09-05 General Electric Company Open MRI magnet with superconductive shielding
US5416415A (en) * 1994-08-05 1995-05-16 General Electric Company Over-shoulder MRI magnet for human brain imaging
GB2295673B (en) * 1994-11-29 1999-04-28 Oxford Magnet Tech Improvements in or relating to cryogenic mri magnets
GB2299673A (en) * 1995-04-07 1996-10-09 Oxford Magnet Tech MRI magnet with flared opening

Also Published As

Publication number Publication date
US5799653A (en) 1998-09-01
JP4188384B2 (ja) 2008-11-26
GB2306007A (en) 1997-04-23
JP2007203032A (ja) 2007-08-16
JPH09192117A (ja) 1997-07-29
GB9618660D0 (en) 1996-10-16

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