GB2397381B - Cold mass support structure and helium vessel of actively shielded high field open mri magnets - Google Patents

Cold mass support structure and helium vessel of actively shielded high field open mri magnets

Info

Publication number
GB2397381B
GB2397381B GB0326962A GB0326962A GB2397381B GB 2397381 B GB2397381 B GB 2397381B GB 0326962 A GB0326962 A GB 0326962A GB 0326962 A GB0326962 A GB 0326962A GB 2397381 B GB2397381 B GB 2397381B
Authority
GB
United Kingdom
Prior art keywords
support structure
high field
helium vessel
mass support
cold mass
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
GB0326962A
Other languages
English (en)
Other versions
GB0326962D0 (en
GB2397381A (en
Inventor
Evangelos Laskaris
Xianrui Huang
Michele Dollar Ogle
Michael A Palmo
Paul Shadforth Thompson
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 GB0326962D0 publication Critical patent/GB0326962D0/en
Publication of GB2397381A publication Critical patent/GB2397381A/en
Application granted granted Critical
Publication of GB2397381B publication Critical patent/GB2397381B/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
    • G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets
    • 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
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
GB0326962A 2002-11-25 2003-11-19 Cold mass support structure and helium vessel of actively shielded high field open mri magnets Expired - Fee Related GB2397381B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/065,848 US7242191B2 (en) 2002-11-25 2002-11-25 Cold mass support structure and helium vessel of actively shielded high field open MRI magnets

Publications (3)

Publication Number Publication Date
GB0326962D0 GB0326962D0 (en) 2003-12-24
GB2397381A GB2397381A (en) 2004-07-21
GB2397381B true GB2397381B (en) 2007-06-27

Family

ID=29778430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0326962A Expired - Fee Related GB2397381B (en) 2002-11-25 2003-11-19 Cold mass support structure and helium vessel of actively shielded high field open mri magnets

Country Status (6)

Country Link
US (1) US7242191B2 (https=)
JP (1) JP2004174243A (https=)
CN (1) CN100504431C (https=)
DE (1) DE10352647A1 (https=)
GB (1) GB2397381B (https=)
NL (1) NL1024853C2 (https=)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7242191B2 (en) * 2002-11-25 2007-07-10 General Electric Company Cold mass support structure and helium vessel of actively shielded high field open MRI magnets
US7141974B2 (en) * 2003-08-25 2006-11-28 William A Edelstein Active-passive electromagnetic shielding to reduce MRI acoustic noise
EP1751570A1 (en) * 2004-05-14 2007-02-14 Koninklijke Philips Electronics N.V. Short element tem coil for ultra-high field mr
US20060017536A1 (en) * 2004-07-26 2006-01-26 General Electric Company Systems, methods and apparatus for hybrid shielding in a magnetic resonance imaging system
JP4541092B2 (ja) * 2004-10-04 2010-09-08 株式会社日立製作所 磁気共鳴イメージング装置の超伝導磁石装置
JP4749699B2 (ja) * 2004-11-17 2011-08-17 株式会社日立メディコ 磁気共鳴イメージング装置
JP4705528B2 (ja) * 2006-01-05 2011-06-22 株式会社日立製作所 超伝導磁石装置および磁気共鳴イメージング装置
JP4856430B2 (ja) * 2006-01-23 2012-01-18 株式会社日立製作所 電磁石装置
US7375526B2 (en) * 2006-10-20 2008-05-20 Edelstein William A Active-passive electromagnetic shielding to reduce MRI acoustic noise
JP4921935B2 (ja) * 2006-11-22 2012-04-25 株式会社日立製作所 電磁石装置及び磁気共鳴撮像装置
US20100219833A1 (en) * 2007-07-26 2010-09-02 Emscan Limited Magnet assembly
DE102008053845B4 (de) * 2008-10-30 2011-01-20 Siemens Aktiengesellschaft Profilrahmenstruktur für eine Magnetresonanzeinrichtung
US7924010B2 (en) * 2009-03-25 2011-04-12 General Electric Company Apparatus for supporting and method for forming a support for a magnetic resonance imaging (MRI) magnet
JP5111691B1 (ja) * 2012-04-20 2013-01-09 三菱電機株式会社 超電導マグネットおよびその調整方法
GB2521470B (en) * 2013-12-20 2015-11-11 Siemens Plc Support structure for cylindrical superconducting coil structure

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307039A (en) * 1992-09-08 1994-04-26 General Electric Company Frustoconical magnet for magnetic resonance imaging
US5428292A (en) * 1994-04-29 1995-06-27 General Electric Company Pancake MRI magnet with modified imaging volume
US5485088A (en) * 1994-05-13 1996-01-16 Bruker Analytische Messtechnik Gmbh Therapy tomograph with homogeneity device
US5565831A (en) * 1995-10-23 1996-10-15 General Electric Company Shielded and open MRI magnet
US6002255A (en) * 1997-11-20 1999-12-14 Brigham & Women's Hospital Planar open magnet MRI system having active target field shimming
US20020050895A1 (en) * 1997-09-25 2002-05-02 Yuval Zuk Magnetic apparatus for MRI
US20020072666A1 (en) * 2000-09-26 2002-06-13 Overweg Johannes Adrianus Vertical field type MRI apparatus with a conical gradient coil situated in the main magnet
WO2003054893A1 (en) * 2001-12-21 2003-07-03 Koninklijke Philips Electronics N.V. Cooling of a mri system

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907927A1 (de) * 1989-03-11 1990-09-20 Bruker Analytische Messtechnik Magnetsystem
DE3914243A1 (de) * 1989-04-29 1990-10-31 Bruker Analytische Messtechnik Magnetsystem mit supraleitenden feldspulen
US5134374A (en) * 1989-06-01 1992-07-28 Applied Superconetics Magnetic field control apparatus
EP0525246A1 (de) * 1991-08-01 1993-02-03 Siemens Aktiengesellschaft Magneteinrichtung mit einem ein magnetisches Streufeld erzeugenden Jochkörper
US5315276A (en) * 1992-01-29 1994-05-24 Hewlett Packard Company Compact superconducting magnet for magnetic resonance imaging
US5359310A (en) * 1992-04-15 1994-10-25 Houston Advanced Research Center Ultrashort cylindrical shielded electromagnet for magnetic resonance imaging
US6201394B1 (en) * 1992-12-18 2001-03-13 Fonar Corporation MRI apparatus
US5378988A (en) * 1993-01-22 1995-01-03 Pulyer; Yuly M. MRI system having high field strength open access magnet
US5696476A (en) * 1995-07-31 1997-12-09 General Electric Company Open architecture magnetic resonance imaging superconducting magnet assembly
DE69633683T2 (de) * 1995-08-28 2006-03-09 Shin-Etsu Chemical Co., Ltd. Magnetkreisanordnung mit einander gegenüberliegenden Permanentmagneten
GB2311375B (en) * 1996-03-20 2000-08-23 Oxford Magnet Tech Improvements in or relating to MRI magnets
JP2002034947A (ja) * 1997-10-24 2002-02-05 Hitachi Ltd マグネット装置、および、これを用いたｍｒｉ装置
JP4247948B2 (ja) * 1997-12-01 2009-04-02 株式会社日立メディコ 磁石装置及びｍｒｉ装置
US5883558A (en) * 1998-02-19 1999-03-16 General Electric Company Open superconductive magnet having shielding
US5994991A (en) * 1998-02-19 1999-11-30 General Electric Company Open magnet having shielding
US5874882A (en) * 1998-02-19 1999-02-23 General Electric Company Open and shielded superconductive magnet
US5874880A (en) * 1998-03-05 1999-02-23 General Electric Company Shielded and open superconductive magnet
US6078234A (en) * 1998-07-09 2000-06-20 General Electric Company Helium vessel for open architecture magnetic resonance imaging superconducting magnet
US6218838B1 (en) * 1998-08-28 2001-04-17 Picker International, Inc. MRI magnet with high homogeneity, patient access, and low forces on the driver coils
US6150819A (en) * 1998-11-24 2000-11-21 General Electric Company Laminate tiles for an MRI system and method and apparatus for manufacturing the laminate tiles
US6259252B1 (en) * 1998-11-24 2001-07-10 General Electric Company Laminate tile pole piece for an MRI, a method manufacturing the pole piece and a mold bonding pole piece tiles
US6011454A (en) * 1998-12-30 2000-01-04 Huang; Xianrui Superconducting magnet suspension assembly
US6172588B1 (en) * 1999-04-23 2001-01-09 General Electric Company Apparatus and method for a superconductive magnet with pole piece
GB2355798B (en) * 1999-10-26 2004-05-19 Oxford Magnet Tech Improved magnetic coil former
GB2355800B (en) * 1999-10-29 2004-10-27 Oxford Magnet Tech Improved magnet
US6166617A (en) * 1999-11-09 2000-12-26 General Electric Company Pole piece assembly and open magnet having same
US6150912A (en) * 1999-11-15 2000-11-21 General Electric Company Open architecture superconducting magnet helium vessel structure
US6147579A (en) * 1999-11-17 2000-11-14 General Electric Company Superconducting magnet non-uniform thermal insulation blankets
AU2001228228A1 (en) * 2000-01-19 2001-07-31 Millennium Technology Inc. C-shaped magnetic resonance imaging system
US6335670B1 (en) * 2000-04-14 2002-01-01 Marconi Medical Systems Finland, Inc. Mri system with split rose ring with high homogeneity
US6570475B1 (en) * 2000-11-20 2003-05-27 Intermagnetics General Corp. Split type magnetic resonance imaging magnet
US6909348B2 (en) * 2000-12-05 2005-06-21 Hitachi, Ltd. Low-leakage magnetic-field magnet and shield coil assembly
US6504461B2 (en) * 2001-03-26 2003-01-07 General Electric Company Open magnet with recessed field shaping coils
US6717408B2 (en) * 2001-04-05 2004-04-06 Intermagnetics General Corporation Support structure for open MRI apparatus
US7242191B2 (en) * 2002-11-25 2007-07-10 General Electric Company Cold mass support structure and helium vessel of actively shielded high field open MRI magnets

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307039A (en) * 1992-09-08 1994-04-26 General Electric Company Frustoconical magnet for magnetic resonance imaging
US5428292A (en) * 1994-04-29 1995-06-27 General Electric Company Pancake MRI magnet with modified imaging volume
US5485088A (en) * 1994-05-13 1996-01-16 Bruker Analytische Messtechnik Gmbh Therapy tomograph with homogeneity device
US5565831A (en) * 1995-10-23 1996-10-15 General Electric Company Shielded and open MRI magnet
US20020050895A1 (en) * 1997-09-25 2002-05-02 Yuval Zuk Magnetic apparatus for MRI
US6002255A (en) * 1997-11-20 1999-12-14 Brigham & Women's Hospital Planar open magnet MRI system having active target field shimming
US20020072666A1 (en) * 2000-09-26 2002-06-13 Overweg Johannes Adrianus Vertical field type MRI apparatus with a conical gradient coil situated in the main magnet
WO2003054893A1 (en) * 2001-12-21 2003-07-03 Koninklijke Philips Electronics N.V. Cooling of a mri system

Also Published As

Publication number Publication date
CN1523369A (zh) 2004-08-25
GB0326962D0 (en) 2003-12-24
DE10352647A1 (de) 2004-06-03
JP2004174243A (ja) 2004-06-24
US20040100261A1 (en) 2004-05-27
CN100504431C (zh) 2009-06-24
NL1024853C2 (nl) 2005-01-04
NL1024853A1 (nl) 2004-05-26
US7242191B2 (en) 2007-07-10
GB2397381A (en) 2004-07-21

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Legal Events

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

Effective date: 20131119