DE3875863D1 - Magnetisches resonanzgeraet mit gradientenspulensystem. - Google Patents

Magnetisches resonanzgeraet mit gradientenspulensystem.

Info

Publication number
DE3875863D1
DE3875863D1 DE8888201728T DE3875863T DE3875863D1 DE 3875863 D1 DE3875863 D1 DE 3875863D1 DE 8888201728 T DE8888201728 T DE 8888201728T DE 3875863 T DE3875863 T DE 3875863T DE 3875863 D1 DE3875863 D1 DE 3875863D1
Authority
DE
Germany
Prior art keywords
magnetic resonance
gradient coil
coil system
resonance device
gradient
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
DE8888201728T
Other languages
English (en)
Other versions
DE3875863T2 (de
Inventor
Johannes Adrianus Overweg
Cornelis Leonardus Gerardu Ham
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3875863D1 publication Critical patent/DE3875863D1/de
Publication of DE3875863T2 publication Critical patent/DE3875863T2/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
    • G01R33/42—Screening
    • G01R33/421—Screening of main or 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE8888201728T 1987-08-19 1988-08-12 Magnetisches resonanzgeraet mit gradientenspulensystem. Expired - Fee Related DE3875863T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8701948A NL8701948A (nl) 1987-08-19 1987-08-19 Magnetisch resonantie-apparaat met verbeterd gradient spoelenstelsel.

Publications (2)

Publication Number Publication Date
DE3875863D1 true DE3875863D1 (de) 1992-12-17
DE3875863T2 DE3875863T2 (de) 1993-05-19

Family

ID=19850473

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888201728T Expired - Fee Related DE3875863T2 (de) 1987-08-19 1988-08-12 Magnetisches resonanzgeraet mit gradientenspulensystem.

Country Status (5)

Country Link
US (1) US4878023A (de)
EP (1) EP0304126B1 (de)
JP (1) JP2843829B2 (de)
DE (1) DE3875863T2 (de)
NL (1) NL8701948A (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3918743A1 (de) * 1989-06-08 1990-12-13 Philips Patentverwaltung Hochfrequenz-quadraturspulenanordnung
GB9026924D0 (en) * 1990-12-12 1991-01-30 Marconi Gec Ltd Coil arrangements in magnetic resonance apparatus
US5296810A (en) * 1992-03-27 1994-03-22 Picker International, Inc. MRI self-shielded gradient coils
US5278504A (en) * 1989-06-16 1994-01-11 Picker International, Inc. Gradient coil with off center sweet spot for magnetic resonance imaging
DE4029477C2 (de) * 1989-09-29 1994-06-01 Siemens Ag Tesserale Gradientenspule für Kernspin-Tomographiegeräte
NL8903066A (nl) * 1989-12-14 1991-07-01 Philips Nv Magnetisch resonantie apparaat met beeldfout reductie.
WO1991019994A1 (en) * 1990-06-06 1991-12-26 Advanced Nmr Systems, Inc. Shielded gradient coil for nuclear magnetic resonance imaging
US5481191A (en) * 1990-06-29 1996-01-02 Advanced Nmr Systems, Inc. Shielded gradient coil for nuclear magnetic resonance imaging
JP2928595B2 (ja) * 1990-06-27 1999-08-03 株式会社東芝 傾斜磁場発生装置
NL9002574A (nl) * 1990-11-27 1992-06-16 Philips Nv Magnetisch resonantieapparaat.
GB9105286D0 (en) * 1991-03-13 1991-04-24 Oxford Instr Ltd Magnetic field generating apparatus
GB2257521B (en) * 1991-07-04 1995-10-04 Magnex Scient Limited Electromagnets
JP3179805B2 (ja) * 1991-09-04 2001-06-25 株式会社日立メディコ Ｍｒイメージング装置の傾斜磁界発生コイル
DE4230145C2 (de) * 1992-09-09 1996-09-05 Bruker Analytische Messtechnik NMR-Meßeinrichtung
US5554929A (en) * 1993-03-12 1996-09-10 Doty Scientific, Inc. Crescent gradient coils
FR2704322B1 (fr) * 1993-04-20 1995-05-24 Gec Alsthom Electromec Système de bobines de gradient transverse pour appareil de résonance magnétique nucléaire.
US5530355A (en) * 1993-05-13 1996-06-25 Doty Scientific, Inc. Solenoidal, octopolar, transverse gradient coils
US5497089A (en) * 1994-03-15 1996-03-05 Picker International, Inc. Wide aperture gradient set
US5539367A (en) * 1994-05-02 1996-07-23 General Electric Company Superconducting gradient shields in magnetic resonance imaging magnets
DE19503833C2 (de) * 1995-02-06 1998-05-14 Siemens Ag Kernspintomographiegerät mit einer Kombination aus Hochfrequenzantenne und Gradientenspule
DE10202986A1 (de) 2002-01-26 2003-07-31 Philips Intellectual Property Spulensystem für eine MR-Apparatur sowie MR-Apparatur mit einem solchen Spulensystem
GB2400671B (en) * 2003-02-12 2006-05-10 Siemens Ag Magnetic resonance apparatus with a coil arrangement and an electrically conducting structure
JP2009520576A (ja) * 2005-12-20 2009-05-28 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 長手方向磁場傾斜システムを有する磁気共鳴スキャナ
EP2120699B1 (de) * 2006-12-20 2022-05-25 Philips Intellectual Property & Standards GmbH Anordnung und verfahren zur beeinflussung und/oder erkennung magnetischer partikel in einem wirkungsbereich
CN101563032B (zh) * 2006-12-20 2013-02-13 皇家飞利浦电子股份有限公司 用于影响和/或检测作用区域中的磁性粒子的方法和布置
WO2008078262A2 (en) * 2006-12-20 2008-07-03 Philips Intellectual Property & Standards Gmbh Arrangement and method for influencing and/or detecting and/or locating magnetic particles in a region of action
EP2225578A1 (de) * 2007-12-21 2010-09-08 Koninklijke Philips Electronics N.V. Elektromagnet mit einem beschichteten ferromagnetischen kern und supraleitender film zur unterdrückung von eddy-magnetfeldern
DE102009027119B4 (de) * 2009-06-23 2013-01-17 Sirona Dental Systems Gmbh Magnetfeldeinheit eines MRT-Systems zur bildgebenden Erfassung eines Kopfbereichs
US8427164B2 (en) * 2009-07-09 2013-04-23 Baker Hughes Incorporated Apparatus and method for reducing effects of eccentricity in induction tools

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951018A1 (de) * 1979-12-19 1982-02-11 Wilfried H. Dr. 5483 Bad Neuenahr Bergmann Verfahren und vorrichtung zur verbesserung der empfindlichkeit und des signal-rausch-verhaeltnisses von spin-echo-messungen an proben, die bei ihrer eigentemperatur vermessen werden muessen und die elektrische leitfaehigkeit besitzen
DE3133432A1 (de) * 1981-08-24 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Hochfrequenzfeld-einrichtung in einer kernspinresonanz-apparatur
DE3133873A1 (de) * 1981-08-27 1983-03-17 Siemens AG, 1000 Berlin und 8000 München Gradientenspulen-system fuer eine einrichtung der kernspinresonanz-technik
JPS5940151A (ja) * 1982-08-30 1984-03-05 Shimadzu Corp 核磁気共鳴映像法
US4607225A (en) * 1983-07-19 1986-08-19 Regents Of The University Of California Apparatus and method for reducing spurious currents in NMR imaging apparatus induced by pulsed gradient fields
NL8303534A (nl) * 1983-10-14 1985-05-01 Philips Nv Kernspinresonantie apparaat.
US4585995A (en) * 1984-04-19 1986-04-29 Technicare Corporation Nuclear magnetic resonance eddy field suppression apparatus
JPS61165648A (ja) * 1985-01-18 1986-07-26 Mitsubishi Electric Corp 磁気共鳴イメ−ジング用径方向傾斜磁場コイル
JPS61274312A (ja) * 1985-05-14 1986-12-04 Sumitomo Electric Ind Ltd 化合物半導体装置
JPS62334A (ja) * 1985-06-26 1987-01-06 株式会社東芝 磁気共鳴イメ−ジング装置
US4761612A (en) * 1985-07-25 1988-08-02 Picker International, Inc. Programmable eddy current correction
DE3689346T3 (de) * 1985-09-20 2002-05-02 British Technology Group Ltd., London Magnetische Abschirmungen.
US4698591A (en) * 1986-01-03 1987-10-06 General Electric Company Method for magnetic field gradient eddy current compensation
US4737716A (en) * 1986-02-06 1988-04-12 General Electric Company Self-shielded gradient coils for nuclear magnetic resonance imaging
JPH07100057B2 (ja) * 1986-09-29 1995-11-01 株式会社東芝 磁気共鳴イメ−ジング装置

Also Published As

Publication number Publication date
DE3875863T2 (de) 1993-05-19
US4878023A (en) 1989-10-31
EP0304126A1 (de) 1989-02-22
JP2843829B2 (ja) 1999-01-06
EP0304126B1 (de) 1992-11-11
JPS6470031A (en) 1989-03-15
NL8701948A (nl) 1989-03-16

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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 ELECTRONICS N.V., EINDHOVEN, NL

8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8339 Ceased/non-payment of the annual fee