DE69737511D1 - Magnetfeld-erzeuger für die bildgebende magnetische resonanz - Google Patents

Magnetfeld-erzeuger für die bildgebende magnetische resonanz

Info

Publication number
DE69737511D1
DE69737511D1 DE69737511T DE69737511T DE69737511D1 DE 69737511 D1 DE69737511 D1 DE 69737511D1 DE 69737511 T DE69737511 T DE 69737511T DE 69737511 T DE69737511 T DE 69737511T DE 69737511 D1 DE69737511 D1 DE 69737511D1
Authority
DE
Germany
Prior art keywords
field generator
imaging
magnetic field
magnetic resonance
magnetic
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 - Lifetime
Application number
DE69737511T
Other languages
English (en)
Other versions
DE69737511T2 (de
Inventor
Masaaki Aoki
Shigeo Hashimoto
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.)
Proterial Ltd
GE Medical Systems Global Technology Co LLC
Original Assignee
Neomax Co Ltd
GE Medical Systems Global Technology Co LLC
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 Neomax Co Ltd, GE Medical Systems Global Technology Co LLC filed Critical Neomax Co Ltd
Application granted granted Critical
Publication of DE69737511D1 publication Critical patent/DE69737511D1/de
Publication of DE69737511T2 publication Critical patent/DE69737511T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent 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
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE69737511T 1997-12-26 1997-12-26 Magnetfeld-Erzeuger für die Bildgebende Magnetische Resonanz Expired - Lifetime DE69737511T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1997/004867 WO1999033397A1 (fr) 1996-08-26 1997-12-26 Generateur de champ magnetique pour irm

Publications (2)

Publication Number Publication Date
DE69737511D1 true DE69737511D1 (de) 2007-05-03
DE69737511T2 DE69737511T2 (de) 2007-07-26

Family

ID=14181757

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69737511T Expired - Lifetime DE69737511T2 (de) 1997-12-26 1997-12-26 Magnetfeld-Erzeuger für die Bildgebende Magnetische Resonanz

Country Status (5)

Country Link
US (1) US6275128B1 (de)
EP (1) EP0965305B1 (de)
KR (1) KR100373577B1 (de)
DE (1) DE69737511T2 (de)
WO (1) WO1999033397A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001078982A (ja) * 1999-09-16 2001-03-27 Hitachi Medical Corp 開放型磁石装置
US6448772B1 (en) 2000-10-06 2002-09-10 Sumitomo Special Metals Co., Ltd. Magnetic field adjusting apparatus, magnetic field adjusting method and recording medium
US6518867B2 (en) 2001-04-03 2003-02-11 General Electric Company Permanent magnet assembly and method of making thereof
US6662434B2 (en) * 2001-04-03 2003-12-16 General Electric Company Method and apparatus for magnetizing a permanent magnet
JP3878434B2 (ja) * 2001-05-10 2007-02-07 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 磁気共鳴撮像用コイル構造体および磁気共鳴撮像装置
US6809519B2 (en) * 2001-07-12 2004-10-26 Shin-Etsu Chemical Co., Ltd. Inclined magnetic field generation coil and magnetic field generator for MRI
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
US6984982B2 (en) 2002-07-29 2006-01-10 Ge Medical Systems Global Technology Company Llc Method and system for shimming an MRI magnet assembly
US7081752B2 (en) * 2003-04-04 2006-07-25 General Electric Company System and method of electrically loading radio-frequency coils using conductive polymers
US7423431B2 (en) * 2003-09-29 2008-09-09 General Electric Company Multiple ring polefaceless permanent magnet and method of making
US7148689B2 (en) * 2003-09-29 2006-12-12 General Electric Company Permanent magnet assembly with movable permanent body for main magnetic field adjustable
US7375518B2 (en) * 2003-10-15 2008-05-20 Hitachi Medical Corporation Structure for reducing noise in magnetic resonance imaging apparatus
JP2005168692A (ja) 2003-12-10 2005-06-30 Shin Etsu Chem Co Ltd 永久磁石対向型磁気回路およびその磁場を調整する方法
ITSV20040020A1 (it) * 2004-05-07 2004-08-07 Esaote Spa Struttura magnetica per macchine mri e macchina mri
US7019609B2 (en) * 2004-06-21 2006-03-28 General Electric Company Magnetic field generating device and method of shimming thereof
JP3733441B1 (ja) * 2004-07-02 2006-01-11 株式会社日立製作所 磁気共鳴撮像装置及びその磁石装置
US7295012B1 (en) 2006-04-28 2007-11-13 General Electric Company Methods and apparatus for MRI shim elements
CN100581454C (zh) * 2006-07-14 2010-01-20 Ge医疗系统环球技术有限公司 磁场发生器和mri装置
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
IT1397713B1 (it) * 2010-01-22 2013-01-24 Esaote Spa Macchina per risonanza magnetica nucleare con mezzi per la correzione dell'omogeneità del campo magnetico.
CA2884097C (en) 2014-03-13 2020-04-21 LT Imaging Inc. Magnetic resonance imaging (mri) system and method
GB2616784A (en) * 2020-12-11 2023-09-20 Nanalysis Corp Pole piece

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62295405A (ja) * 1986-02-17 1987-12-22 Sanyo Electric Co Ltd 磁気共鳴撮像装置
JPH01164356A (ja) * 1987-12-22 1989-06-28 Asahi Chem Ind Co Ltd 均一磁界の発生装置
JPH03131234A (ja) * 1989-07-07 1991-06-04 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
US5061897A (en) * 1990-03-23 1991-10-29 Fonar Corporation Eddy current control in magnetic resonance imaging
JPH0454938A (ja) * 1990-06-22 1992-02-21 Siemens Asahi Medeitetsuku Kk 磁界発生装置
US5317298A (en) * 1993-01-04 1994-05-31 General Electric Company Apparatus and method for passive shimming of a superconducting magnet which images human limbs
US5304934A (en) * 1993-01-04 1994-04-19 General Electric Company Superconducting magnet for imaging human limbs
GB2276946B (en) * 1993-04-08 1997-04-02 Oxford Magnet Tech Improvements in or relating to MRI magnets
FI105293B (fi) * 1993-06-08 2000-07-14 Picker Nordstar Oy Magneettikuvaukseen käytettävän magneetin napakenkä
FI933834A (fi) * 1993-09-01 1995-03-02 Picker Nordstar Oy Magneettikuvauslaitteen napakenkä
US5635839A (en) * 1994-11-04 1997-06-03 Picker International, Inc. High order passive shimming assembly for MRI magnets
JP3151129B2 (ja) * 1995-08-28 2001-04-03 信越化学工業株式会社 磁石対向型永久磁石磁気回路とその磁場調整方法
JP3014319B2 (ja) * 1996-04-12 2000-02-28 信越化学工業株式会社 磁石対向型永久磁石回路
US5923235A (en) * 1998-10-23 1999-07-13 General Electric Company Shim assembly for a pole face of a magnet

Also Published As

Publication number Publication date
EP0965305A1 (de) 1999-12-22
KR100373577B1 (ko) 2003-02-26
EP0965305A4 (de) 2005-11-09
DE69737511T2 (de) 2007-07-26
KR20000075747A (ko) 2000-12-26
WO1999033397A1 (fr) 1999-07-08
EP0965305B1 (de) 2007-03-21
US6275128B1 (en) 2001-08-14

Similar Documents

Publication Publication Date Title
DE69933630D1 (de) Magnetfelderzeuger für die Magnetresonanzbildgebung
DE69737511D1 (de) Magnetfeld-erzeuger für die bildgebende magnetische resonanz
DE69935702D1 (de) Magnet für die bildgebende magnetische resonanz
DE69417155D1 (de) System für die bildgebende magnetische Resonanz
DE69929006D1 (de) Magnetfelderzeuger für die Magnetresonanzbildgebung und Verfahren zum Zusammenbau desselben
NO20003251D0 (no) Metode for magnetisk resonans avbildning
DE69526394D1 (de) Magnet für die Bilderzeugung mittels magnetischer Resonanz
DE69615180D1 (de) Sondenspule für die kernspinresonanz
DE69932477D1 (de) Magnetanordnung für die bildgebende Magnetresonanz mit nichtleitender innerer Wand
EP1060706A4 (de) Magnetresonanz bildgebungsvorrichtung
DE29900512U1 (de) Magnetresonanzanlage für die intraoperative Bildgebung
DE69926034D1 (de) Rf-Spulen für die Magnetresonanzbildgebung
NL1002067A1 (nl) Magnetisch afbeeldingsapparaat.
GB9828425D0 (en) Magnetic resonance imaging apparatus
DE69931833D1 (de) Gerät für die magnetische Resonanz
DE69817252D1 (de) Supraleitende Spule
DE69925193D1 (de) Mehrfrequenz-Magnetresonanzbildgebung
DE60045731D1 (de) Kopfspule für die bilderzeugende magnetische Resonanz
DE69832950D1 (de) Endoskopische RF-Spulen für die Magnetresonanzbildgebung
DE69708345D1 (de) Verbesserungen an Magneten für die bildgebende magnetische Resonanz
DE69407848D1 (de) Magnetanordnung für die Bilderzeugung mittels magnetischer Resonanz
DE69513589D1 (de) Magnetischer Toner, Abbilddungsverfahren
DE69936690D1 (de) Gerät für die bildgebende magnetische Resonanz
NL1005396A1 (nl) MR (magnetische resonantie)-afbeeldingsinrichting.
DE69739504D1 (de) Her magnetresonanz

Legal Events

Date Code Title Description
8364 No opposition during term of opposition