JP2004351207A - 均一な磁場を用いたイメージング・システム - Google Patents

均一な磁場を用いたイメージング・システム Download PDF

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Publication number
JP2004351207A
JP2004351207A JP2004156989A JP2004156989A JP2004351207A JP 2004351207 A JP2004351207 A JP 2004351207A JP 2004156989 A JP2004156989 A JP 2004156989A JP 2004156989 A JP2004156989 A JP 2004156989A JP 2004351207 A JP2004351207 A JP 2004351207A
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Prior art keywords
passive
shim
magnetic field
shims
imaging system
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Pending
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JP2004156989A
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English (en)
Japanese (ja)
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JP2004351207A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Peter Feenan
ピーター・フィーナン
Rory Warner
ローリー・ワーナー
William F B Punchard
ウィリアム・エフ・ビー・パンチャード
Piotr M Starewicz
ピオトル・エム・ステアウィッチ
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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 JP2004351207A publication Critical patent/JP2004351207A/ja
Publication of JP2004351207A5 publication Critical patent/JP2004351207A5/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
    • G01R33/38—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
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2004156989A 2003-05-28 2004-05-27 均一な磁場を用いたイメージング・システム Pending JP2004351207A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/250,014 US6788060B1 (en) 2003-05-28 2003-05-28 Imaging system with homogeneous magnetic field

Publications (2)

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JP2004351207A true JP2004351207A (ja) 2004-12-16
JP2004351207A5 JP2004351207A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 2007-07-12

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Family Applications (1)

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JP2004156989A Pending JP2004351207A (ja) 2003-05-28 2004-05-27 均一な磁場を用いたイメージング・システム

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US (1) US6788060B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP1482320A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JP2004351207A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CN (1) CN1572243B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006218141A (ja) * 2005-02-14 2006-08-24 Hitachi Medical Corp 磁気共鳴イメージング装置
JP2008023339A (ja) * 2006-07-19 2008-02-07 Siemens Ag 温度に対する磁性体の磁気誘導の変動特性の測定方法及び装置
JP2008114051A (ja) * 2006-10-13 2008-05-22 Toshiba Corp 磁気共鳴装置
WO2008126895A1 (ja) * 2007-04-10 2008-10-23 Hitachi Medical Corporation 超伝導磁石装置、磁気共鳴撮像装置、及び、磁場不均一補償方法
WO2009131060A1 (ja) * 2008-04-24 2009-10-29 株式会社 日立メディコ 磁気共鳴イメージング装置
US7741847B2 (en) 2006-10-13 2010-06-22 Kabushiki Kaisha Toshiba Magnetic resonance apparatus with temperature controlled magnet shim pieces
JP2015500127A (ja) * 2011-12-13 2015-01-05 ビューレイ・インコーポレイテッドＶｉｅｗＲａｙ Ｉｎｃｏｒｐｏｒａｔｅｄ Ｍｒｉ装置のためのアクティブ抵抗性シミング
US10463883B2 (en) 2009-07-15 2019-11-05 Viewray Technologies, Inc. Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
US11033758B2 (en) 2017-12-06 2021-06-15 Viewray Technologies, Inc. Radiotherapy systems, methods and software
US11083912B2 (en) 2013-03-15 2021-08-10 Viewray Technologies, Inc. Systems and methods for linear accelerator radiotherapy with magnetic resonance imaging
US12017090B2 (en) 2016-03-02 2024-06-25 Viewray Systems, Inc. Particle therapy with magnetic resonance imaging
US12090343B2 (en) 2012-10-26 2024-09-17 Viewray Systems, Inc. Assessment and improvement of treatment using imaging of physiological responses to radiation therapy

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8862203B2 (en) * 2003-03-27 2014-10-14 Boston Scientific Scimed Inc. Medical device with temperature modulator for use in magnetic resonance imaging
WO2005098463A2 (en) * 2004-04-01 2005-10-20 Liposcience, Inc. Nmr clinical analyzers and related methods, systems, modules and computer program products for clinical evaluation of biosamples
US7224167B2 (en) * 2004-11-30 2007-05-29 General Electric Company Magnetic field generating apparatus and method for magnetic resonance imaging
US7962019B2 (en) * 2007-11-09 2011-06-14 General Electric Company System, method and apparatus for controlling drift of a main magnetic field in an MRI system
US7868617B2 (en) 2007-11-15 2011-01-11 General Electric Co. Cooling system and apparatus for controlling drift of a main magnetic field in an MRI system
US20090206839A1 (en) * 2008-02-20 2009-08-20 General Electric Company System, method and apparatus for compensating for drift in a main magnetic field in an mri system
CN102109587A (zh) * 2009-12-29 2011-06-29 西门子迈迪特(深圳)磁共振有限公司 校正磁场均匀性的方法和装置
US8604793B2 (en) * 2010-10-21 2013-12-10 General Electric Company Superconducting magnet having cold iron shimming capability
DE102011087485B3 (de) 2011-11-30 2013-05-29 Siemens Aktiengesellschaft Magnetresonanztomographie-Anlage, Verfahren zum Ausgleichen einer Feldinhomogenität in der Anlage und Shimspulenanordnung
CN104122518B (zh) * 2013-04-25 2017-12-22 上海联影医疗科技有限公司 磁共振成像系统及其被动匀场装置
DE102013210237B4 (de) * 2013-06-03 2016-12-29 Siemens Healthcare Gmbh Verfahren zum Betreiben eines mobilen Magnetresonanztomographiesystems
DE102015205150A1 (de) 2015-03-23 2016-09-29 Siemens Healthcare Gmbh Verfahren zur Korrektur von durch den Betrieb von Gradientenspulen auftretenden Feldstörungen höherer Ordnung und Magnetresonanzeinrichtung
CN109765509A (zh) * 2017-11-09 2019-05-17 西门子(深圳)磁共振有限公司 超导磁共振成像设备的匀场方法
CN110928359B (zh) * 2019-11-01 2021-07-27 山西大学 一种同时补偿空间剩余均匀磁场和梯度磁场的装置
CN112824921B (zh) * 2019-11-20 2022-12-20 上海联影医疗科技股份有限公司 磁共振场飘补偿方法、调节方法、场飘补偿系统以及磁共振系统
CN112162577B (zh) * 2020-09-25 2021-06-22 上海联影医疗科技股份有限公司 磁共振设备温度控制电路、系统和方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569823A (en) * 1968-10-18 1971-03-09 Perkin Elmer Corp Nuclear magnetic resonance apparatus
JPS593886A (ja) * 1982-06-29 1984-01-10 株式会社　八光電機製作所 カ−トリツジヒ−タ−
JPH02206436A (ja) * 1989-02-03 1990-08-16 Yokogawa Medical Syst Ltd 核磁気共鳴診断装置
JPH04129534A (ja) * 1990-09-19 1992-04-30 Hitachi Ltd 磁気共鳴イメージング装置の渦電流補償方法及び渦電流補償装置
JPH08215168A (ja) * 1995-02-17 1996-08-27 Ge Yokogawa Medical Syst Ltd 磁場均一度調整方法および装置
JP2000342554A (ja) * 1999-03-26 2000-12-12 Hitachi Medical Corp 磁気共鳴イメージング装置および磁気共鳴イメージング装置における高い磁場均一度を維持する方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8808334D0 (en) * 1988-04-08 1988-05-11 Magnex Scient Ltd Electromagnets
US4949044A (en) 1988-04-18 1990-08-14 Resonance Research, Inc. Apparatus for mapping a static magnetic field
US4949043A (en) 1988-04-18 1990-08-14 Resonance Research Inc. Apparatus for rendering a static magnetic field uniform
US4862087A (en) 1988-04-18 1989-08-29 Resonance Research, Inc. Process and apparatus for homogenizing a static magnetic field
GB8920345D0 (en) * 1989-09-08 1989-10-25 Oxford Advanced Tech Magnetic field generating system
US5136243A (en) 1990-04-16 1992-08-04 Resonance Research, Inc. Apparatus and element for mapping a static magnetic field
DE59108295D1 (de) * 1990-09-20 1996-11-28 Siemens Ag Kernspintomograph
US5313164A (en) 1992-11-27 1994-05-17 Resonance Research Inc. Apparatus for mapping static magnetic fields
EP0760484B1 (en) 1995-08-28 2001-05-30 Shin-Etsu Chemical Co., Ltd. Opposed magnet-type magnetic circuit assembly with permanent magnets
US6198283B1 (en) 1998-09-18 2001-03-06 Ge Medical Systems Global Technology Llc System and method of phase sensitive MRI reconstruction using partial k-space data and including a network
JP2002538862A (ja) * 1999-03-10 2002-11-19 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 磁気共鳴撮像の際の主磁場の変動を補償する方法及び装置
US6252405B1 (en) * 1999-11-15 2001-06-26 General Electric Company Temperature compensated NMR magnet and method of operation therefor
US6455855B1 (en) 2000-04-20 2002-09-24 Ge Medical Systems Global Technology Company Llc Sealed detector for a medical imaging device and a method of manufacturing the same
US6507190B1 (en) 2000-08-01 2003-01-14 Ge Medical Systems Global Technologies Company Llc Method and apparatus for compensating polarizing fields in magnetic resonance imaging
US6448772B1 (en) * 2000-10-06 2002-09-10 Sumitomo Special Metals Co., Ltd. Magnetic field adjusting apparatus, magnetic field adjusting method and recording medium
US6522144B2 (en) 2000-12-22 2003-02-18 Ge Medical Systems Global Technology Company, Llc RF shielding method and apparatus for an open MRI system
JP3987686B2 (ja) * 2001-02-02 2007-10-10 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 静磁界補正方法およびｍｒｉ装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569823A (en) * 1968-10-18 1971-03-09 Perkin Elmer Corp Nuclear magnetic resonance apparatus
JPS593886A (ja) * 1982-06-29 1984-01-10 株式会社　八光電機製作所 カ−トリツジヒ−タ−
JPH02206436A (ja) * 1989-02-03 1990-08-16 Yokogawa Medical Syst Ltd 核磁気共鳴診断装置
JPH04129534A (ja) * 1990-09-19 1992-04-30 Hitachi Ltd 磁気共鳴イメージング装置の渦電流補償方法及び渦電流補償装置
JPH08215168A (ja) * 1995-02-17 1996-08-27 Ge Yokogawa Medical Syst Ltd 磁場均一度調整方法および装置
JP2000342554A (ja) * 1999-03-26 2000-12-12 Hitachi Medical Corp 磁気共鳴イメージング装置および磁気共鳴イメージング装置における高い磁場均一度を維持する方法

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006218141A (ja) * 2005-02-14 2006-08-24 Hitachi Medical Corp 磁気共鳴イメージング装置
JP2008023339A (ja) * 2006-07-19 2008-02-07 Siemens Ag 温度に対する磁性体の磁気誘導の変動特性の測定方法及び装置
JP2008114051A (ja) * 2006-10-13 2008-05-22 Toshiba Corp 磁気共鳴装置
US7741847B2 (en) 2006-10-13 2010-06-22 Kabushiki Kaisha Toshiba Magnetic resonance apparatus with temperature controlled magnet shim pieces
WO2008126895A1 (ja) * 2007-04-10 2008-10-23 Hitachi Medical Corporation 超伝導磁石装置、磁気共鳴撮像装置、及び、磁場不均一補償方法
JP2008259558A (ja) * 2007-04-10 2008-10-30 Hitachi Ltd 磁場均一度調整装置、およびこれを用いた超伝導磁石装置、並びに磁気共鳴撮像装置
US8198897B2 (en) 2007-04-10 2012-06-12 Hitachi Medical Corporation Superconductive magnetic device, magnetic resonance imaging apparatus and magnetic field inhomogeneity compensation method
WO2009131060A1 (ja) * 2008-04-24 2009-10-29 株式会社 日立メディコ 磁気共鳴イメージング装置
JP2009261566A (ja) * 2008-04-24 2009-11-12 Hitachi Medical Corp 磁気共鳴イメージング装置
US8723523B2 (en) 2008-04-24 2014-05-13 Hitachi Medical Corporation Magnetic resonance imaging apparatus with temperature sensor for predicting static magnetic field inhomogeneity
US10918887B2 (en) 2009-07-15 2021-02-16 Viewray Technologies, Inc. Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
US10463883B2 (en) 2009-07-15 2019-11-05 Viewray Technologies, Inc. Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
US11452463B2 (en) 2009-07-15 2022-09-27 Viewray Technologies, Inc. Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
US12105166B2 (en) 2009-07-15 2024-10-01 Viewray Systems, Inc. Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
US9599687B2 (en) 2011-12-13 2017-03-21 Viewray Technologies, Inc. Active resistive shimming for MRI devices
JP2018075383A (ja) * 2011-12-13 2018-05-17 ビューレイ・テクノロジーズ・インコーポレイテッドＶｉｅｗＲａｙ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｉｎｃ． Ｍｒｉ装置のためのアクティブ抵抗性シミング
US10393836B2 (en) 2011-12-13 2019-08-27 Viewray Technologies, Inc. Active resistive shimming for MRI devices
JP2015500127A (ja) * 2011-12-13 2015-01-05 ビューレイ・インコーポレイテッドＶｉｅｗＲａｙ Ｉｎｃｏｒｐｏｒａｔｅｄ Ｍｒｉ装置のためのアクティブ抵抗性シミング
US12090343B2 (en) 2012-10-26 2024-09-17 Viewray Systems, Inc. Assessment and improvement of treatment using imaging of physiological responses to radiation therapy
US11083912B2 (en) 2013-03-15 2021-08-10 Viewray Technologies, Inc. Systems and methods for linear accelerator radiotherapy with magnetic resonance imaging
US11612764B2 (en) 2013-03-15 2023-03-28 Viewray Technologies, Inc. Systems and methods for linear accelerator radiotherapy with magnetic resonance imaging
US12017090B2 (en) 2016-03-02 2024-06-25 Viewray Systems, Inc. Particle therapy with magnetic resonance imaging
US11033758B2 (en) 2017-12-06 2021-06-15 Viewray Technologies, Inc. Radiotherapy systems, methods and software

Also Published As

Publication number Publication date
CN1572243B (zh) 2012-11-14
US6788060B1 (en) 2004-09-07
EP1482320A3 (en) 2005-11-09
EP1482320A2 (en) 2004-12-01
CN1572243A (zh) 2005-02-02

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