JP2004057832A5 - - Google Patents

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Publication number
JP2004057832A5
JP2004057832A5 JP2003280545A JP2003280545A JP2004057832A5 JP 2004057832 A5 JP2004057832 A5 JP 2004057832A5 JP 2003280545 A JP2003280545 A JP 2003280545A JP 2003280545 A JP2003280545 A JP 2003280545A JP 2004057832 A5 JP2004057832 A5 JP 2004057832A5
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JP
Japan
Prior art keywords
magnetic field
shims
shim
edge
generating assembly
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.)
Granted
Application number
JP2003280545A
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English (en)
Japanese (ja)
Other versions
JP4424650B2 (ja
JP2004057832A (ja
Filing date
Publication date
Priority claimed from US10/064,589 external-priority patent/US6984982B2/en
Application filed filed Critical
Publication of JP2004057832A publication Critical patent/JP2004057832A/ja
Publication of JP2004057832A5 publication Critical patent/JP2004057832A5/ja
Application granted granted Critical
Publication of JP4424650B2 publication Critical patent/JP4424650B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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JP2003280545A 2002-07-29 2003-07-28 Ｍｒｉマグネット・アセンブリをシム調整するための方法及びシステム Expired - Fee Related JP4424650B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/064,589 US6984982B2 (en) 2002-07-29 2002-07-29 Method and system for shimming an MRI magnet assembly

Publications (3)

Publication Number Publication Date
JP2004057832A JP2004057832A (ja) 2004-02-26
JP2004057832A5 true JP2004057832A5 (https=) 2008-09-11
JP4424650B2 JP4424650B2 (ja) 2010-03-03

Family

ID=30769098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003280545A Expired - Fee Related JP4424650B2 (ja) 2002-07-29 2003-07-28 Ｍｒｉマグネット・アセンブリをシム調整するための方法及びシステム

Country Status (4)

Country Link
US (1) US6984982B2 (https=)
EP (1) EP1389733B1 (https=)
JP (1) JP4424650B2 (https=)
CN (1) CN100565235C (https=)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7081752B2 (en) * 2003-04-04 2006-07-25 General Electric Company System and method of electrically loading radio-frequency coils using conductive polymers
WO2005037101A1 (ja) * 2003-10-15 2005-04-28 Hitachi Medical Corporation 磁気共鳴イメージング装置
GB2414080B (en) * 2004-05-14 2006-07-26 Oxford Magnet Tech Tool and method for shimming a magnet
US7755359B2 (en) * 2004-05-31 2010-07-13 Hitachi Medical Corporation Magnetic resonance imaging apparatus with noise suppressing structure
JP4639948B2 (ja) * 2005-05-17 2011-02-23 三菱電機株式会社 磁石装置及びそれを用いた磁気共鳴イメージング装置
JP4188387B2 (ja) * 2006-06-05 2008-11-26 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 磁気共鳴イメージング装置及びシム値設定方法
JP4368909B2 (ja) * 2007-05-25 2009-11-18 三菱電機株式会社 超電導マグネットの磁場調整装置及び磁場調整方法
JP5349177B2 (ja) * 2009-07-09 2013-11-20 株式会社東芝 磁気共鳴イメージング装置
JP5627415B2 (ja) * 2010-11-24 2014-11-19 三菱電機株式会社 Ｍｒｉ用超電導マグネットの調整方法
ITGE20120059A1 (it) * 2012-06-22 2013-12-23 Esaote Spa Metodo per la correzione della disomogeneità del campo magnetico statico generato dal magnete di una macchina mri e dispositivo per l'attuazione di tale metodo
CN103713269A (zh) * 2012-09-29 2014-04-09 西门子(深圳)磁共振有限公司 用于磁体的匀场片、匀场条以及磁体和磁共振系统
JP6259303B2 (ja) * 2014-02-04 2018-01-10 株式会社日立製作所 磁石装置および磁気共鳴撮像装置
CN105652225B (zh) * 2015-12-28 2019-01-25 沈阳东软医疗系统有限公司 一种磁共振系统的匀场方法和装置
CA3123142A1 (en) * 2016-03-22 2017-09-28 Hyperfine Research, Inc. Methods and apparatus for magnetic field shimming
AU2019274404A1 (en) * 2018-05-21 2020-11-12 Hyperfine Operations, Inc. B0 magnet methods and apparatus for a magnetic resonance imaging system
DE102019212508A1 (de) 2019-08-21 2021-02-25 Bruker Switzerland Ag Temperiersystem für MR-Geräte mit Permanentmagnetanordung

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5235284A (en) * 1989-07-07 1993-08-10 Mitsubishi Denki Kabushiki Kaisha Passive shim arrangement for nuclear magnetic resonance
JPH03131234A (ja) 1989-07-07 1991-06-04 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
US5220302A (en) * 1990-01-22 1993-06-15 The University Of Texas System Board Of Regents Nmr clinical chemistry analyzer and method of forming a shield
JPH07106155A (ja) 1993-05-26 1995-04-21 General Electric Co <Ge> Ｃ字形超伝導磁石
US5446434A (en) 1994-07-27 1995-08-29 General Electric Company Magnet having pole faces with trapezoidal-shaped shims
US5635839A (en) * 1994-11-04 1997-06-03 Picker International, Inc. High order passive shimming assembly for MRI magnets
US5532597A (en) * 1994-11-04 1996-07-02 Picker International, Inc. Passive shimming technique for MRI magnets
US5550472A (en) * 1995-04-13 1996-08-27 Picker International, Inc. Combined radio frequency coil with integral magnetic field shim set
KR100373577B1 (ko) * 1997-12-26 2003-02-26 스미토모 도큐슈 긴조쿠 가부시키가이샤 자기 공명 촬영 장치용 자계 발생 장치
US6011396A (en) * 1998-01-02 2000-01-04 General Electric Company Adjustable interventional magnetic resonance imaging magnet
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
GB2337595B (en) * 1998-05-22 2003-03-19 Oxford Magnet Tech Improvements in or relating to magnetic resonance imaging systems
US5923235A (en) * 1998-10-23 1999-07-13 General Electric Company Shim assembly for a pole face of a magnet
US6255928B1 (en) * 1998-11-02 2001-07-03 General Electric Company Magnet having a shim for a laminated pole piece
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
US5999076A (en) * 1998-12-30 1999-12-07 General Electric Company Magnetic resonance imaging passively shimmed superconducting magnet assembly
DE19901332C1 (de) * 1999-01-15 2000-09-14 Bruker Analytik Gmbh Verfahren zum Homogenisieren von Magnetfeldern
DE19901331B4 (de) * 1999-01-15 2006-10-26 Bruker Biospin Gmbh Einrichtung und Verfahren zum Homogenisieren eines Magnetfeldes
US6275129B1 (en) * 1999-10-26 2001-08-14 General Electric Company Shim assembly for a magnet and method for making
AU2872701A (en) 2000-01-25 2001-08-07 Uri Rapoport Field adjusting mechanisms and methods for permanent magnet arrangement with backplate
US6294972B1 (en) * 2000-08-03 2001-09-25 The Mcw Research Foundation, Inc. Method for shimming a static magnetic field in a local MRI coil
US6670877B2 (en) * 2001-01-25 2003-12-30 Uri Rapoport Field adjusting mechanisms and methods for permanent magnet arrangement with backplate
US6566991B1 (en) * 2001-04-24 2003-05-20 Fonar Corporation Apparatus and method of shimming a magnetic field
DE10147984B4 (de) * 2001-09-28 2007-10-11 Siemens Ag Magnetresonanz-Untersuchungsgerät mit einer Einrichtung zur Erzeugung eines homogenen Magnetfeldes und Verfahren zur Verbesserung der Homogenität eines Magnetfeldes

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