GB2397654B - Conduction cooled passively-shielded mri magnet - Google Patents

Conduction cooled passively-shielded mri magnet

Info

Publication number
GB2397654B
GB2397654B GB0329474A GB0329474A GB2397654B GB 2397654 B GB2397654 B GB 2397654B GB 0329474 A GB0329474 A GB 0329474A GB 0329474 A GB0329474 A GB 0329474A GB 2397654 B GB2397654 B GB 2397654B
Authority
GB
United Kingdom
Prior art keywords
mri magnet
conduction cooled
cooled passively
shielded mri
shielded
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 - Fee Related
Application number
GB0329474A
Other languages
English (en)
Other versions
GB2397654A (en
GB0329474D0 (en
Inventor
Evangelos Laskaris
Xianrui Huang
Michele Dollar Ogle
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.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB0329474D0 publication Critical patent/GB0329474D0/en
Publication of GB2397654A publication Critical patent/GB2397654A/en
Application granted granted Critical
Publication of GB2397654B publication Critical patent/GB2397654B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
    • 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
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field 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
    • G01R33/42—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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
GB0329474A 2002-12-23 2003-12-19 Conduction cooled passively-shielded mri magnet Expired - Fee Related GB2397654B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/248,169 US6783059B2 (en) 2002-12-23 2002-12-23 Conduction cooled passively-shielded MRI magnet

Publications (3)

Publication Number Publication Date
GB0329474D0 GB0329474D0 (en) 2004-01-28
GB2397654A GB2397654A (en) 2004-07-28
GB2397654B true GB2397654B (en) 2007-04-11

Family

ID=31188068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0329474A Expired - Fee Related GB2397654B (en) 2002-12-23 2003-12-19 Conduction cooled passively-shielded mri magnet

Country Status (6)

Country Link
US (2) US6783059B2 (enExample)
JP (1) JP2004202245A (enExample)
CN (1) CN100508881C (enExample)
DE (1) DE10357889A1 (enExample)
GB (1) GB2397654B (enExample)
NL (1) NL1025110C2 (enExample)

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US7053740B1 (en) * 2005-07-15 2006-05-30 General Electric Company Low field loss cold mass structure for superconducting magnets
US20070101742A1 (en) * 2005-11-10 2007-05-10 Laskaris Evangelos T A cooling system for superconducting magnets
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JP4665751B2 (ja) * 2005-12-22 2011-04-06 株式会社日立製作所 高抵抗磁石を用いたｍｒｉ装置
US8130977B2 (en) * 2005-12-27 2012-03-06 Polycom, Inc. Cluster of first-order microphones and method of operation for stereo input of videoconferencing system
US7554326B2 (en) * 2006-05-17 2009-06-30 Kabushiki Kaisha Toshiba MRI gradient magnetic coil unit assembley using different resins within windings and between components
US7352183B2 (en) * 2006-06-22 2008-04-01 General Electric Company Method and apparatus for locally shielding MR superconducting magnet coil
US7852079B2 (en) * 2006-08-01 2010-12-14 General Electric Company Apparatus for low AC loss thermal shielding and method of making same
US7518370B2 (en) * 2006-11-30 2009-04-14 General Electric Company Low eddy current vacuum vessel and method of making same
US7489132B2 (en) * 2006-12-15 2009-02-10 General Electric Company Enhanced heat transfer in MRI gradient coils with phase-change materials
US7301343B1 (en) * 2006-12-18 2007-11-27 General Electric Co. System, method and apparatus for controlling the temperature of a MRI magnet warm bore
US7615998B2 (en) * 2007-01-09 2009-11-10 General Electric Company Method and apparatus for actively controlling quench protection of a superconducting magnet
US20080209919A1 (en) * 2007-03-01 2008-09-04 Philips Medical Systems Mr, Inc. System including a heat exchanger with different cryogenic fluids therein and method of using the same
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US7477055B1 (en) 2007-08-21 2009-01-13 General Electric Company Apparatus and method for coupling coils in a superconducting magnet
US7498814B1 (en) * 2007-10-31 2009-03-03 General Electric Company Magnet assembly for magnetic resonance imaging system
US7812604B2 (en) * 2007-11-14 2010-10-12 General Electric Company Thermal management system for cooling a heat generating component of a magnetic resonance imaging apparatus
JP5472896B2 (ja) * 2007-11-22 2014-04-16 株式会社東芝 磁気共鳴装置
EP2225578A1 (en) * 2007-12-21 2010-09-08 Koninklijke Philips Electronics N.V. Electromagnet with laminated ferromagnetic core and superconducting film for. suppressing eddy magnetic field
JP5582756B2 (ja) * 2008-11-28 2014-09-03 株式会社東芝 高周波コイルユニットおよび磁気共鳴診断装置
CN101788655A (zh) * 2009-01-24 2010-07-28 Ge医疗系统环球技术有限公司 磁共振成像系统以及使该系统中主磁体的温度稳定的方法
CN102054554B (zh) * 2009-10-30 2015-07-08 通用电气公司 超导磁体的制冷系统和制冷方法
CN102054555B (zh) * 2009-10-30 2014-07-16 通用电气公司 超导磁体的制冷系统、制冷方法以及核磁共振成像系统
CN102142311B (zh) 2010-02-02 2013-09-18 通用电气公司 超导磁体及其制造方法
CN101877268A (zh) * 2010-06-13 2010-11-03 江苏旌凯中科超导高技术有限公司 通用型超导磁体系统
CN102314988B (zh) * 2010-06-30 2014-05-07 通用电气公司 磁体组件及其温控方法
CN102403081B (zh) 2010-09-17 2015-02-11 通用电气公司 磁体组件及其制造方法
US8604793B2 (en) 2010-10-21 2013-12-10 General Electric Company Superconducting magnet having cold iron shimming capability
US8332004B2 (en) 2010-12-23 2012-12-11 General Electric Company System and method for magnetization of rare-earth permanent magnets
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GB2490478B (en) * 2011-04-20 2014-04-23 Siemens Plc Superconducting magnets with thermal radiation shields
CN102866370B (zh) * 2011-07-06 2016-05-11 西门子(深圳)磁共振有限公司 超导磁体装置及磁共振成像系统
US8694065B2 (en) 2011-09-23 2014-04-08 General Electric Company Cryogenic cooling system with wicking structure
US20130104570A1 (en) * 2011-10-31 2013-05-02 General Electric Company Cryogenic cooling system
US9322892B2 (en) 2011-12-20 2016-04-26 General Electric Company System for magnetic field distortion compensation and method of making same
US9279871B2 (en) 2011-12-20 2016-03-08 General Electric Company System and apparatus for compensating for magnetic field distortion in an MRI system
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US10224799B2 (en) * 2012-10-08 2019-03-05 General Electric Company Cooling assembly for electrical machines and methods of assembling the same
US9274188B2 (en) * 2012-11-30 2016-03-01 General Electric Company System and apparatus for compensating for magnetic field distortion in an MRI system
CN103901371B (zh) * 2012-12-24 2017-04-19 通用电气公司 用于磁共振成像mri系统的致冷器和方法
CN103077797B (zh) * 2013-01-06 2016-03-30 中国科学院电工研究所 用于头部成像的超导磁体系统
US10018692B2 (en) 2013-11-20 2018-07-10 Aspect Imaging Ltd. Shutting assembly for closing an entrance of an MRI device
CN105793721B (zh) * 2013-12-02 2020-03-03 皇家飞利浦有限公司 使用零回波时间脉冲序列的磁共振成像系统
DE202013011370U1 (de) 2013-12-18 2014-01-30 Aspect Imaging Ltd. HF-abschirmende Verbindung in einer MRT-Schließvorrichtung
US10386432B2 (en) 2013-12-18 2019-08-20 Aspect Imaging Ltd. Radiofrequency shielding conduit in a door or a doorframe of a magnetic resonance imaging room
DE202014101104U1 (de) 2014-03-09 2014-04-03 Aspect Imaging Ltd. Eine wärmeisolierende MRT-Ummantelung
DE202014101102U1 (de) 2014-03-09 2014-04-01 Aspect Imaging Ltd. Eine HF-abschirmende MRT-Ummantelung
AU2015229860B2 (en) * 2014-03-13 2018-12-06 Endurant Systems, Llc UAV configurations and battery augmentation for UAV internal combustion engines, and associated systems and methods
DE112015006201T5 (de) * 2015-02-23 2017-11-02 Synaptive Medical (Barbados) Inc. System und Verfahren für Anordnung von Magnetresonanz-Spulen
CN106298148B (zh) * 2015-05-11 2019-04-23 通用电气公司 超导磁体系统及冷却件
DE102015225731B3 (de) * 2015-12-17 2017-04-06 Bruker Biospin Ag Leicht zugängliche tiefgekühlte NMR Shim-Anordnung
US11029378B2 (en) 2016-12-14 2021-06-08 Aspect Imaging Ltd. Extendable radiofrequency shield for magnetic resonance imaging device
US10401452B2 (en) 2017-04-28 2019-09-03 Aspect Imaging Ltd. System for reduction of a magnetic fringe field of a magnetic resonance imaging device
US10910920B2 (en) 2019-05-01 2021-02-02 General Electric Company Magnetic shield for a superconducting generator

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US4876510A (en) * 1987-06-04 1989-10-24 Siemens Aktiengesellschaft Apparatus for nuclear spin tomography having superconducting base field magnetic coils and a radiation shield
US4881035A (en) * 1987-11-24 1989-11-14 Siemens Aktiengesellschaft Magnetic structural arrangement of an installation for nuclear magnetic resonance tomography with superconducting background field coils and normal-conducting gradient coils
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US4881035A (en) * 1987-11-24 1989-11-14 Siemens Aktiengesellschaft Magnetic structural arrangement of an installation for nuclear magnetic resonance tomography with superconducting background field coils and normal-conducting gradient coils
US5179338A (en) * 1991-09-13 1993-01-12 General Electric Company Refrigerated superconducting MR magnet with integrated gradient coils
US5225782A (en) * 1991-09-13 1993-07-06 General Electric Company Eddy current free MRI magnet with integrated gradient coils
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GB2282451A (en) * 1993-09-29 1995-04-05 Oxford Magnet Tech Yoke MRI magnet with radially laminated pole-plates
EP0981057A2 (en) * 1998-08-14 2000-02-23 General Electric Company MRI magnet assembly with non-conductive inner wall

Also Published As

Publication number Publication date
NL1025110A1 (nl) 2004-06-24
GB2397654A (en) 2004-07-28
US20040119472A1 (en) 2004-06-24
GB0329474D0 (en) 2004-01-28
US20050001621A1 (en) 2005-01-06
NL1025110C2 (nl) 2004-11-09
CN1509684A (zh) 2004-07-07
DE10357889A1 (de) 2004-07-29
US6995562B2 (en) 2006-02-07
US6783059B2 (en) 2004-08-31
CN100508881C (zh) 2009-07-08
JP2004202245A (ja) 2004-07-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20171219