JP2004358238A - 磁気共鳴イメージングにおける傾斜補償のためのシステム及び方法 - Google Patents

磁気共鳴イメージングにおける傾斜補償のためのシステム及び方法 Download PDF

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Publication number
JP2004358238A
JP2004358238A JP2004144259A JP2004144259A JP2004358238A JP 2004358238 A JP2004358238 A JP 2004358238A JP 2004144259 A JP2004144259 A JP 2004144259A JP 2004144259 A JP2004144259 A JP 2004144259A JP 2004358238 A JP2004358238 A JP 2004358238A
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Japan
Prior art keywords
magnetic field
coil
gradient
tilt
operable
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JP2004144259A
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English (en)
Japanese (ja)
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JP2004358238A5 (enExample
Inventor
Timothy J Havens
ティモシー・ジェイ・ヘイヴンズ
Xianrui Huang
シャンルイ・ファン
David T Ryan
デビッド・ティー・ライアン
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GE Medical Systems Global Technology Co LLC
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GE Medical Systems Global Technology Co LLC
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Application filed by GE Medical Systems Global Technology Co LLC filed Critical GE Medical Systems Global Technology Co LLC
Publication of JP2004358238A publication Critical patent/JP2004358238A/ja
Publication of JP2004358238A5 publication Critical patent/JP2004358238A5/ja
Pending legal-status Critical Current

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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
    • 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
    • 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
    • G01R33/38—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
    • 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
    • G01R33/389—Field stabilisation, e.g. by field measurements and control means or indirectly by current stabilisation

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2004144259A 2003-05-15 2004-05-14 磁気共鳴イメージングにおける傾斜補償のためのシステム及び方法 Pending JP2004358238A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/438,523 US6850066B2 (en) 2003-05-15 2003-05-15 Systems and methods for gradient compensation in magnetic resonance imaging

Publications (2)

Publication Number Publication Date
JP2004358238A true JP2004358238A (ja) 2004-12-24
JP2004358238A5 JP2004358238A5 (enExample) 2007-07-05

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ID=32595339

Family Applications (1)

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JP2004144259A Pending JP2004358238A (ja) 2003-05-15 2004-05-14 磁気共鳴イメージングにおける傾斜補償のためのシステム及び方法

Country Status (4)

Country Link
US (1) US6850066B2 (enExample)
JP (1) JP2004358238A (enExample)
GB (1) GB2404027B (enExample)
NL (1) NL1026189C2 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009014539B4 (de) * 2009-03-24 2014-07-24 Siemens Aktiengesellschaft Verfahren zur Ermittlung der Leiterstruktur einer Gradientenspule
US9322892B2 (en) 2011-12-20 2016-04-26 General Electric Company System for magnetic field distortion compensation and method of making same
CN103852740B (zh) * 2012-11-30 2016-12-07 通用电气公司 降低涡电流磁场的系统和方法
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
US10254362B2 (en) 2015-10-30 2019-04-09 General Electric Company Magnetic resonance imaging matrix shim coil system and method
JP6817775B2 (ja) * 2016-10-11 2021-01-20 株式会社東芝 補正装置、補正方法及び磁気共鳴画像装置
EP3543722A1 (en) * 2018-03-20 2019-09-25 Koninklijke Philips N.V. Magnetic resonance imaging using corrected k-space trajectories calculated from current sensor data

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62143012A (ja) * 1985-09-20 1987-06-26 ブリティッシュ・テクノロジー・グループ・リミテッド 磁気遮蔽
JPH02172442A (ja) * 1988-12-27 1990-07-04 Toshiba Corp 磁気共鳴イメージング撮影装置
US5083085A (en) * 1989-03-26 1992-01-21 Elscint Ltd. Compact shielded gradient coil system
JPH08589A (ja) * 1994-06-20 1996-01-09 Hitachi Ltd 磁気共鳴を用いた検査装置
JPH09238923A (ja) * 1996-03-12 1997-09-16 Toshiba Corp 磁気共鳴診断装置
JPH1094532A (ja) * 1996-07-31 1998-04-14 Toshiba Corp 磁場発生用コイルユニットおよびコイル巻装方法
JPH10328159A (ja) * 1997-05-29 1998-12-15 Hitachi Medical Corp 静磁場発生装置
JPH1189817A (ja) * 1997-09-22 1999-04-06 Hitachi Medical Corp 磁気共鳴イメージング装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3732660A1 (de) * 1986-09-29 1988-04-07 Toshiba Kawasaki Kk Magnetresonanz-abbildungssystem
EP0307516A1 (en) * 1987-09-18 1989-03-22 Koninklijke Philips Electronics N.V. Magnetic resonance imaging apparatus with eddy-current disturbances correction system
EP0476321B1 (de) * 1990-09-20 1996-10-23 Siemens Aktiengesellschaft Kernspintomograph
EP0525246A1 (de) * 1991-08-01 1993-02-03 Siemens Aktiengesellschaft Magneteinrichtung mit einem ein magnetisches Streufeld erzeugenden Jochkörper
US5227728A (en) * 1991-11-01 1993-07-13 The Regents Of The University Of California Gradient driver control in magnetic resonance imaging
US5530355A (en) * 1993-05-13 1996-06-25 Doty Scientific, Inc. Solenoidal, octopolar, transverse gradient coils
US5770943A (en) * 1996-12-30 1998-06-23 General Electric Company Method for measuring and compensating for spatially and temporally varying magnetic fields induced by eddy currents
JP3753505B2 (ja) * 1997-07-07 2006-03-08 ジーイー横河メディカルシステム株式会社 外乱磁場補償方法および磁気共鳴撮像装置
US6100692A (en) * 1998-01-05 2000-08-08 Picker International, Inc. Gradient coil set with a finite shield current
US6469604B1 (en) 1998-05-15 2002-10-22 Alex Palkovich Coil for a magnet and a method of manufacture thereof
US6236203B1 (en) * 1998-09-28 2001-05-22 Picker International, Inc. Super shielding of finite length structures in open magnetic and electric systems
JP3209982B2 (ja) 1999-06-18 2001-09-17 ジーイー横河メディカルシステム株式会社 Ｍｒｉ装置用勾配コイル、ｍｒｉ装置用勾配コイルの製造方法およびｍｒｉ装置
DE10004765A1 (de) 2000-02-03 2001-08-09 Philips Corp Intellectual Pty MR-Gerät mit einer Gradientenspulen-Anordnung
US6448773B1 (en) 2000-02-24 2002-09-10 Toshiba America Mri, Inc. Method and system for measuring and compensating for eddy currents induced during NMR imaging operations
JP4421079B2 (ja) 2000-05-23 2010-02-24 株式会社東芝 Ｍｒｉ用傾斜磁場コイル
US6396268B1 (en) 2000-10-02 2002-05-28 Ge Medical Systems Global Technology Company, Llc Magnetic resonance imaging device having magnetic field disturbance compensation
JP3905039B2 (ja) * 2000-12-22 2007-04-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Ｍｒｉ装置
US6456076B1 (en) 2001-01-31 2002-09-24 The Trustees Of The University Of Pennsylvania Z gradient shielding coil for canceling eddy currents
US6479999B1 (en) 2001-06-05 2002-11-12 Koninklijke Philips Electronics N.V. Efficiently shielded MRI gradient coil with discretely or continuously variable field of view

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62143012A (ja) * 1985-09-20 1987-06-26 ブリティッシュ・テクノロジー・グループ・リミテッド 磁気遮蔽
JPH02172442A (ja) * 1988-12-27 1990-07-04 Toshiba Corp 磁気共鳴イメージング撮影装置
US5083085A (en) * 1989-03-26 1992-01-21 Elscint Ltd. Compact shielded gradient coil system
JPH08589A (ja) * 1994-06-20 1996-01-09 Hitachi Ltd 磁気共鳴を用いた検査装置
JPH09238923A (ja) * 1996-03-12 1997-09-16 Toshiba Corp 磁気共鳴診断装置
JPH1094532A (ja) * 1996-07-31 1998-04-14 Toshiba Corp 磁場発生用コイルユニットおよびコイル巻装方法
JPH10328159A (ja) * 1997-05-29 1998-12-15 Hitachi Medical Corp 静磁場発生装置
JPH1189817A (ja) * 1997-09-22 1999-04-06 Hitachi Medical Corp 磁気共鳴イメージング装置

Also Published As

Publication number Publication date
US20040227511A1 (en) 2004-11-18
NL1026189C2 (nl) 2005-07-12
GB2404027A (en) 2005-01-19
NL1026189A1 (nl) 2004-11-16
US6850066B2 (en) 2005-02-01
GB0410611D0 (en) 2004-06-16
GB2404027B (en) 2007-02-21

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