DE69529327D1 - Apparat für magnetische Resonanzmessungen - Google Patents

Apparat für magnetische Resonanzmessungen

Info

Publication number
DE69529327D1
DE69529327D1 DE69529327T DE69529327T DE69529327D1 DE 69529327 D1 DE69529327 D1 DE 69529327D1 DE 69529327 T DE69529327 T DE 69529327T DE 69529327 T DE69529327 T DE 69529327T DE 69529327 D1 DE69529327 D1 DE 69529327D1
Authority
DE
Germany
Prior art keywords
magnetic resonance
resonance measurements
measurements
magnetic
resonance
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
DE69529327T
Other languages
English (en)
Other versions
DE69529327T2 (de
Inventor
John V M Mcginley
Gordon D Demeester
Vishnu C Srivastava
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.)
Philips Nuclear Medicine Inc
Original Assignee
Marconi Medical Systems Inc
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 Marconi Medical Systems Inc filed Critical Marconi Medical Systems Inc
Publication of DE69529327D1 publication Critical patent/DE69529327D1/de
Application granted granted Critical
Publication of DE69529327T2 publication Critical patent/DE69529327T2/de
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
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming
DE69529327T 1994-11-04 1995-10-05 Apparat für magnetische Resonanzmessungen Expired - Fee Related DE69529327T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/334,588 US5635839A (en) 1994-11-04 1994-11-04 High order passive shimming assembly for MRI magnets

Publications (2)

Publication Number Publication Date
DE69529327D1 true DE69529327D1 (de) 2003-02-13
DE69529327T2 DE69529327T2 (de) 2003-10-09

Family

ID=23307901

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69529327T Expired - Fee Related DE69529327T2 (de) 1994-11-04 1995-10-05 Apparat für magnetische Resonanzmessungen

Country Status (4)

Country Link
US (1) US5635839A (de)
EP (1) EP0710851B1 (de)
JP (1) JP3702514B2 (de)
DE (1) DE69529327T2 (de)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69737511T2 (de) * 1997-12-26 2007-07-26 Neomax Co., Ltd. Magnetfeld-Erzeuger für die Bildgebende Magnetische Resonanz
US6023167A (en) * 1998-01-26 2000-02-08 Picker International, Inc. Surface coils with integrated shims
DE29805903U1 (de) * 1998-03-31 1998-06-10 Siemens Ag Magnet für Kernspinresonanzgeräte
GB2337595B (en) * 1998-05-22 2003-03-19 Oxford Magnet Tech Improvements in or relating to magnetic resonance imaging systems
US6157276A (en) * 1998-08-14 2000-12-05 General Electric Company MRI magnet assembly with non-conductive inner wall
US5992006A (en) 1998-12-23 1999-11-30 Fonar Corporation Method for passive control of magnet hemogeneity
US6634088B1 (en) 2000-03-31 2003-10-21 Fonar Corporation Method and apparatus for shimming a magnet to control a three-dimensional field
US6342787B1 (en) 2000-11-22 2002-01-29 Philips Medical Systems (Cleveland) Real-time multi-axis gradient distortion correction using an interactive shim set
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
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
US6627003B2 (en) 2001-10-24 2003-09-30 Ge Medical Systems Global Technology Company, Llc NMR shim forming method
DE10160073A1 (de) * 2001-12-07 2003-06-26 Siemens Ag Lokale Hochfrequenzantenne für ein Magnetresonanzgerät
DE10214111B4 (de) * 2002-03-28 2007-08-16 Siemens Ag Shimkasten, Gradientenspulensystem und Magnetresonanzgerät zum Aufnehmen des Shimkastens
DE10214112B4 (de) * 2002-03-28 2006-01-26 Siemens Ag Shimkasten, Gradientenspulensystem und Magnetresonanzgerät zum Aufnehmen des Shimkastens
DE10214187C1 (de) * 2002-03-28 2003-10-16 Siemens Audiologische Technik Lagerung eines elektroakustischen Miniaturwandlers in einem Gerät, insbesondere einem Hörhilfegerät, sowie elektroakustischer Miniaturwandler
DE10217384C1 (de) * 2002-04-18 2003-12-24 Siemens Ag Gradientenspulensystem
DE10219769B3 (de) * 2002-05-02 2004-01-22 Siemens Ag Magnetresonanzgerät und mit Shimelementen bestückbare Trägervorrichtung
US6984982B2 (en) * 2002-07-29 2006-01-10 Ge Medical Systems Global Technology Company Llc Method and system for shimming an MRI magnet assembly
US6836119B2 (en) * 2002-10-15 2004-12-28 Koninklijke Philips Electronics, N.V. Method and apparatus for aligning a magnetic field modifying structure in a magnetic resonance imaging scanner
JP5255208B2 (ja) * 2003-05-30 2013-08-07 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 成形固定シムを備える磁気共鳴画像スキャナ
US7375518B2 (en) * 2003-10-15 2008-05-20 Hitachi Medical Corporation Structure for reducing noise in magnetic resonance imaging apparatus
US7196520B2 (en) * 2004-10-22 2007-03-27 General Electric Company Method and apparatus for passive shimming of magnets
US7382133B1 (en) * 2005-04-29 2008-06-03 Fonar Corporation Self-shielded gradients and method of designing and producing self-shielded gradients
DE102005020378B4 (de) * 2005-05-02 2010-01-07 Siemens Ag Magnetresonanzgerät mit Gradientenspule mit integrierten passiven Shimvorrichtungen
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
US7439836B2 (en) * 2005-12-28 2008-10-21 General Electric Company Magnetic field generating apparatus for magnetic resonance imaging
US8035387B2 (en) * 2006-01-13 2011-10-11 Yale University Methods and apparatus for compensating field inhomogeneities in magnetic resonance studies
GB2436364B (en) * 2006-03-21 2008-07-02 Siemens Magnet Technology Ltd Apparatus for shimming a magnetic field
GB2436365B (en) * 2006-03-21 2008-04-02 Siemens Magnet Technology Ltd Apparatus and method for shimming the magnetic field generated by a magnet
US7295012B1 (en) * 2006-04-28 2007-11-13 General Electric Company Methods and apparatus for MRI shim elements
GB2438429A (en) * 2006-05-22 2007-11-28 Siemens Magnet Technology Ltd Shim Tray Container for MRI
GB2439749B (en) * 2006-07-06 2010-03-03 Siemens Magnet Technology Ltd Passive shimming of magnet systems
US7459908B2 (en) * 2006-09-05 2008-12-02 Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V. Passive shimming for MR spectroscopy at high magnetic fields
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
JP5670037B2 (ja) * 2009-09-28 2015-02-18 株式会社日立メディコ 静磁場測定器
WO2014133109A1 (ja) * 2013-02-27 2014-09-04 株式会社東芝 磁気共鳴イメージング装置及び傾斜磁場コイル
JP6472673B2 (ja) * 2015-01-28 2019-02-20 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置
JP2017011236A (ja) * 2015-06-26 2017-01-12 株式会社神戸製鋼所 多層磁気シールド
TWI713934B (zh) * 2016-03-22 2020-12-21 美商超精細研究股份有限公司 磁體墊片、用於產生磁體墊片之方法與系統及低場磁性共振成像系統
DE202016005907U1 (de) * 2016-09-26 2016-10-21 Siemens Healthcare Gmbh Magnetresonanzvorrichtung
US11721439B2 (en) 2018-03-08 2023-08-08 Koninklijke Philips N.V. Resolving and steering decision foci in machine learning-based vascular imaging
EP3553547A1 (de) * 2018-04-12 2019-10-16 Koninklijke Philips N.V. Ausgleichseisen für eine magnetresonanzvorrichtung
EP3719523A1 (de) * 2019-04-02 2020-10-07 Koninklijke Philips N.V. Behälter für passive shimelemente für ein magnetresonanzuntersuchungssystem
NL2023040B1 (en) 2019-04-30 2020-11-23 Eae Solutions Holding B V Bomb bay sorter and tray

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587504A (en) * 1983-11-11 1986-05-06 Oxford Magnet Technology Limited Magnet assembly for use in NMR apparatus
NL8502340A (nl) * 1985-08-26 1987-03-16 Philips Nv Magnetisch resonantie apparaat met veld homogeniserende magnetische elementen.
US4737716A (en) * 1986-02-06 1988-04-12 General Electric Company Self-shielded gradient coils for nuclear magnetic resonance imaging
US4733189A (en) * 1986-06-03 1988-03-22 Massachusetts Institute Of Technology Magnetic resonance imaging systems
US4698611A (en) * 1986-12-03 1987-10-06 General Electric Company Passive shimming assembly for MR magnet
JPH02502967A (ja) * 1987-04-15 1990-09-20 オックスフォード　マグネット　テクノロジィ　リミテッド 磁界発生装置
IL87162A (en) * 1988-07-20 1991-12-15 Elscint Ltd System for passively improving magnetic field homogeneity
US4853663A (en) * 1988-12-22 1989-08-01 General Electric Company Passive shims for correction of (3,2) and (3,-2) harmonic terms in magnetic resonance magnets
DE3907927A1 (de) * 1989-03-11 1990-09-20 Bruker Analytische Messtechnik Magnetsystem
US5235284A (en) * 1989-07-07 1993-08-10 Mitsubishi Denki Kabushiki Kaisha Passive shim arrangement for nuclear magnetic resonance
US5045794A (en) * 1989-12-04 1991-09-03 General Electric Company Method of optimizing passive shim placement in magnetic resonance magnets
DE4010032C2 (de) * 1990-03-29 1994-03-03 Bruker Analytische Messtechnik Magnetsystem
NL9002621A (nl) * 1990-11-30 1992-06-16 Koninkl Philips Electronics Nv Magnetisch resonantie apparaat met afschermende magneet.
US5179338A (en) * 1991-09-13 1993-01-12 General Electric Company Refrigerated superconducting MR magnet with integrated gradient coils
JP2570044B2 (ja) * 1992-01-08 1997-01-08 株式会社日立製作所 Ｍｒｉ用超電導マグネットアセンブリ及びｍｒｉ診断装置
US5349297A (en) * 1992-03-27 1994-09-20 Picker International Inc. Combined self shielded gradient coil and shimset
GB2276945B (en) * 1993-04-08 1997-02-26 Oxford Magnet Tech Improvements in or relating to MRI magnets
US5345208A (en) * 1993-05-26 1994-09-06 General Electric Company Pole face design for a C-shaped superconducting magnet

Also Published As

Publication number Publication date
JPH08224220A (ja) 1996-09-03
US5635839A (en) 1997-06-03
JP3702514B2 (ja) 2005-10-05
EP0710851A1 (de) 1996-05-08
DE69529327T2 (de) 2003-10-09
EP0710851B1 (de) 2003-01-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS MEDICAL SYSTEMS (CLEVELAND), INC., CLEVELA

8339 Ceased/non-payment of the annual fee