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FR2621125B1 - Systeme de bobines de gradient pour machine de rmn - Google Patents

Systeme de bobines de gradient pour machine de rmn

Info

Publication number
FR2621125B1
FR2621125B1 FR8713350A FR8713350A FR2621125B1 FR 2621125 B1 FR2621125 B1 FR 2621125B1 FR 8713350 A FR8713350 A FR 8713350A FR 8713350 A FR8713350 A FR 8713350A FR 2621125 B1 FR2621125 B1 FR 2621125B1
Authority
FR
France
Prior art keywords
gradient coil
coil system
nmr machine
nmr
machine
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
Application number
FR8713350A
Other languages
English (en)
Other versions
FR2621125A1 (fr
Inventor
Guy Aubert
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.)
General Electric CGR SA
Original Assignee
Thomson CGR
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 Thomson CGR filed Critical Thomson CGR
Priority to FR8713350A priority Critical patent/FR2621125B1/fr
Priority to EP88908251A priority patent/EP0380533A1/fr
Priority to US07/490,603 priority patent/US5111147A/en
Priority to JP63507862A priority patent/JPH02502070A/ja
Priority to PCT/FR1988/000462 priority patent/WO1989003031A1/fr
Publication of FR2621125A1 publication Critical patent/FR2621125A1/fr
Application granted granted Critical
Publication of FR2621125B1 publication Critical patent/FR2621125B1/fr
Expired 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)
FR8713350A 1987-09-28 1987-09-28 Systeme de bobines de gradient pour machine de rmn Expired FR2621125B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8713350A FR2621125B1 (fr) 1987-09-28 1987-09-28 Systeme de bobines de gradient pour machine de rmn
EP88908251A EP0380533A1 (fr) 1987-09-28 1988-09-16 Systeme de bobines de gradient pour machine de rmn
US07/490,603 US5111147A (en) 1987-09-28 1988-09-16 Gradient coil system for nmr machines
JP63507862A JPH02502070A (ja) 1987-09-28 1988-09-16 Ｎｍｒ装置の勾配コイルシステム
PCT/FR1988/000462 WO1989003031A1 (fr) 1987-09-28 1988-09-16 Systeme de bobines de gradient pour machine de rmn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8713350A FR2621125B1 (fr) 1987-09-28 1987-09-28 Systeme de bobines de gradient pour machine de rmn

Publications (2)

Publication Number Publication Date
FR2621125A1 FR2621125A1 (fr) 1989-03-31
FR2621125B1 true FR2621125B1 (fr) 1989-12-08

Family

ID=9355272

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8713350A Expired FR2621125B1 (fr) 1987-09-28 1987-09-28 Systeme de bobines de gradient pour machine de rmn

Country Status (5)

Country Link
US (1) US5111147A (fr)
EP (1) EP0380533A1 (fr)
JP (1) JPH02502070A (fr)
FR (1) FR2621125B1 (fr)
WO (1) WO1989003031A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2646920B1 (fr) * 1989-05-12 1991-07-05 Commissariat Energie Atomique Dispositif pour la production de champs magnetiques possedant une composante a gradient constant
DE4029477C2 (de) * 1989-09-29 1994-06-01 Siemens Ag Tesserale Gradientenspule für Kernspin-Tomographiegeräte
GB2257521B (en) * 1991-07-04 1995-10-04 Magnex Scient Limited Electromagnets
DE4230145C2 (de) * 1992-09-09 1996-09-05 Bruker Analytische Messtechnik NMR-Meßeinrichtung
US5357958A (en) * 1993-03-18 1994-10-25 The Regents Of The University Of California Interventional MRI system and RF coils therefore
US5623208A (en) * 1993-04-14 1997-04-22 Jeol Ltd. Z-axis magnetic field gradient coil structure for magnetic resonance system
JPH08196518A (ja) * 1995-01-20 1996-08-06 Toshiba Corp Ｍｒｉ装置
DE19503833C2 (de) * 1995-02-06 1998-05-14 Siemens Ag Kernspintomographiegerät mit einer Kombination aus Hochfrequenzantenne und Gradientenspule
US5742164A (en) * 1995-12-28 1998-04-21 General Electric Company Misalignment compensation for MR gradient coil assembly
FR2859791B1 (fr) 2003-09-15 2007-06-08 Commissariat Energie Atomique Machine de rmn avec bobines de gradient perfectionnees
GB2419416A (en) * 2004-10-20 2006-04-26 Gen Electric Method of manufacturing gradient coil for MRI device
DE102005013853B4 (de) * 2005-03-24 2009-06-25 Siemens Ag Magnetresonanzanlage mit einer Hochfrequenz-Sendeantenne
DE102005033955A1 (de) * 2005-07-20 2007-02-01 Siemens Ag Magnetresonanzeinrichtung umfassend eine zylindrische Gradientenspule
FR2944877B1 (fr) 2009-04-27 2011-07-01 Commissariat Energie Atomique Systeme d'imagerie par rmn a pertes cryogeniques et bruit acoustique reduits.
WO2011065455A1 (fr) * 2009-11-27 2011-06-03 株式会社日立メディコ Bobine de gradient, dispositif d'imagerie par résonance magnétique, et procédé de conception du profil de bobine
FR2978834B1 (fr) 2011-08-01 2014-05-16 Commissariat Energie Atomique Procede et systeme de generation de gradients de champ magnetique pour machine d'imagerie a rmn

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456881A (en) * 1982-01-18 1984-06-26 Technicare Corporation Gradient-coil apparatus for a magnetic resonance system
US4617516A (en) * 1983-09-06 1986-10-14 General Electric Company Axial magnetic field gradient coil suitable for use with NMR apparatus
US4761612A (en) * 1985-07-25 1988-08-02 Picker International, Inc. Programmable eddy current correction
DE3650778T2 (de) * 1985-09-20 2004-02-05 Btg International Ltd. Magnetfeldschirme
US4737716A (en) * 1986-02-06 1988-04-12 General Electric Company Self-shielded gradient coils for nuclear magnetic resonance imaging
JPH0687444B2 (ja) * 1986-12-22 1994-11-02 株式会社東芝 磁気共鳴映像装置
US4876510A (en) * 1987-06-04 1989-10-24 Siemens Aktiengesellschaft Apparatus for nuclear spin tomography having superconducting base field magnetic coils and a radiation shield
JPS6430206A (en) * 1987-07-27 1989-02-01 Mitsubishi Electric Corp Superconducting electromagnet
GB8719396D0 (en) * 1987-08-17 1987-09-23 Picker Int Ltd Eddy current compensation
US4881035A (en) * 1987-11-24 1989-11-14 Siemens Aktiengesellschaft Magnetic structural arrangement of an installation for nuclear magnetic resonance tomography with superconducting background field coils and normal-conducting gradient coils
US4881032A (en) * 1988-10-21 1989-11-14 General Electric Company Method of, and apparatus for, NMR spectroscopic metabolite imaging and quantification
US4910460A (en) * 1988-12-05 1990-03-20 University Of Medicine & Dentistry Of New Jersey Method and apparatus for mapping eddy currents in magnetic resonance imaging
US4920316A (en) * 1989-03-30 1990-04-24 Siemens Medical Systems, Inc. Method and apparatus for reducing base field shifts in a magnetic resonance device due to pulsed magnetic field gradients
US4965521A (en) * 1989-08-11 1990-10-23 Spectroscopy Imaging Systems Method and apparatus for compensating eddy current effects in a magnetic resonance device having pulsed magnetic field gradients
US4980641A (en) * 1989-08-11 1990-12-25 General Atomics Method and apparatus of reducing magnetic hysteresis in MRI systems

Also Published As

Publication number Publication date
EP0380533A1 (fr) 1990-08-08
JPH02502070A (ja) 1990-07-12
WO1989003031A1 (fr) 1989-04-06
FR2621125A1 (fr) 1989-03-31
US5111147A (en) 1992-05-05

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse