IL89508A - Apparatus for tuning an nmr field coil - Google Patents

Apparatus for tuning an nmr field coil

Info

Publication number
IL89508A
IL89508A IL89508A IL8950889A IL89508A IL 89508 A IL89508 A IL 89508A IL 89508 A IL89508 A IL 89508A IL 8950889 A IL8950889 A IL 8950889A IL 89508 A IL89508 A IL 89508A
Authority
IL
Israel
Prior art keywords
tuning
field coil
nmr field
nmr
coil
Prior art date
Application number
IL89508A
Other languages
English (en)
Other versions
IL89508A0 (en
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IL89508A0 publication Critical patent/IL89508A0/xx
Publication of IL89508A publication Critical patent/IL89508A/xx

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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3628—Tuning/matching of the transmit/receive coil
    • 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
IL89508A 1988-04-06 1989-03-07 Apparatus for tuning an nmr field coil IL89508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/178,278 US4820985A (en) 1988-04-06 1988-04-06 Apparatus for tuning an NMR field coil

Publications (2)

Publication Number Publication Date
IL89508A0 IL89508A0 (en) 1989-09-10
IL89508A true IL89508A (en) 1992-02-16

Family

ID=22651919

Family Applications (1)

Application Number Title Priority Date Filing Date
IL89508A IL89508A (en) 1988-04-06 1989-03-07 Apparatus for tuning an nmr field coil

Country Status (5)

Country Link
US (1) US4820985A (de)
EP (1) EP0336728B1 (de)
JP (1) JPH0769410B2 (de)
DE (1) DE68917630T2 (de)
IL (1) IL89508A (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916418A (en) * 1989-03-31 1990-04-10 Varian Associates, Inc. Double tuned bird cage coil
US5280248A (en) * 1992-07-24 1994-01-18 Picker International, Inc. Biplanar RF coil for magnetic resonance imaging systems
US5017872A (en) * 1990-01-19 1991-05-21 General Electric Company NMR radio frequency coil with dielectric loading for improved field homogeneity
US5036426A (en) * 1990-02-22 1991-07-30 Board Of Regents, The University Of Texas System Method and apparatus for tuning and matching an NMR coil
FR2658955B1 (fr) * 1990-02-26 1992-04-30 Commissariat Energie Atomique Resonateur coaxial a capacite d'accord repartie.
US5081418A (en) * 1990-04-30 1992-01-14 General Electric Company Method and apparatus for tuning an nmr field coil
US5196797A (en) * 1990-10-31 1993-03-23 Toshiba America Mri, Inc. Method of correcting an asymmetry in an NMR radio frequency coil and an improved radio frequency coil having N-fold symmetry and reduced eddy current
US5315251A (en) * 1990-12-19 1994-05-24 Toshiba America Mri, Inc. NMR radio-frequency coil
US5179332A (en) * 1991-08-16 1993-01-12 General Electric Company NMR radio frequency coil with disable circuit
DE69221835T2 (de) * 1991-12-11 1998-03-05 Philips Electronics Nv Magnetresonanzgerät mit einer Vogelkäfig-RF-Spule
US5309104A (en) * 1992-05-22 1994-05-03 General Electric Company Asymmetric radio frequency coil for magnetic resonance imaging
US5365173A (en) * 1992-07-24 1994-11-15 Picker International, Inc. Technique for driving quadrature dual frequency RF resonators for magnetic resonance spectroscopy/imaging by four-inductive loop over coupling
US5432449A (en) * 1993-02-25 1995-07-11 General Electric Company Test apparatus for magnetic resonance imaging systems
US5557247A (en) * 1993-08-06 1996-09-17 Uab Research Foundation Radio frequency volume coils for imaging and spectroscopy
US5886596A (en) * 1993-08-06 1999-03-23 Uab Research Foundation Radio frequency volume coils for imaging and spectroscopy
US5610520A (en) * 1994-02-24 1997-03-11 Medrad Inc. Automatic orthogonality adjustment device for a quadrature surface coil for magnetic resonance imaging or spectroscopy
US5744957A (en) * 1995-08-15 1998-04-28 Uab Research Foundation Cavity resonator for NMR systems
US5777474A (en) * 1996-11-08 1998-07-07 Advanced Imaging Research, Inc. Radio-frequency coil and method for resonance imaging/analysis
US6177797B1 (en) 1996-12-19 2001-01-23 Advanced Imaging Research, Inc. Radio-frequency coil and method for resonance/imaging analysis
AU6182798A (en) * 1997-02-25 1998-09-09 Advanced Imaging Research, Inc. Radio-frequency coil array for resonance analysis
US7598739B2 (en) * 1999-05-21 2009-10-06 Regents Of The University Of Minnesota Radio frequency gradient, shim and parallel imaging coil
US6633161B1 (en) 1999-05-21 2003-10-14 The General Hospital Corporation RF coil for imaging system
US6727698B1 (en) 1999-12-17 2004-04-27 Fonar Corporation MRI antennas including electrically connected inner and outer conductors, and MRI systems including such antennas
US6847210B1 (en) 1999-12-17 2005-01-25 Fonar Corporation MRI antenna
US6636040B1 (en) 1999-12-17 2003-10-21 Fonar Corporation MRI antenna
US6788056B2 (en) * 2000-07-31 2004-09-07 Regents Of The University Of Minnesota Radio frequency magnetic field unit with aperature
JP4638016B2 (ja) * 2000-11-06 2011-02-23 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 磁場形成装置および磁気共鳴映像システム
US6982553B2 (en) * 2001-10-24 2006-01-03 Koninklijke Philips Electronics N.V. Radio frequency coil with two parallel end conductors
JP3655881B2 (ja) * 2002-03-01 2005-06-02 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 Ｒｆコイルおよび磁気共鳴撮像装置
EP1751571B1 (de) * 2004-05-07 2020-07-15 Regents Of The University Of Minnesota Mehrstromelemente für magnetresonanzhochfrequenzspulen
WO2008075614A1 (ja) * 2006-12-21 2008-06-26 Hitachi, Ltd. 核磁気共鳴計測装置およびコイルユニット
US9201127B2 (en) 2010-11-26 2015-12-01 General Electric Company Apparatus for automatically testing and tuning radio frequency coil
WO2012165295A1 (ja) * 2011-05-31 2012-12-06 国立大学法人大阪大学 共振回路
EP2825897B1 (de) 2012-03-14 2021-08-25 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Verfahren für die optimierung eines vielkanal-nahfeld-rf-transmitters für mehrere moden, mehrere lasten und in mehreren domänen
US9885766B2 (en) 2012-04-17 2018-02-06 Transarray LLC Magnetic-resonance transceiver-phased array that compensates for reactive and resistive components of mutual impedance between array elements and circuit and method thereof
CN106154196B (zh) * 2015-03-31 2021-06-22 西门子(深圳)磁共振有限公司 磁共振成像系统的体线圈的检测方法和设备
CN109637770B (zh) * 2018-12-25 2021-05-28 中国船舶重工集团公司第七一0研究所 一种通过分流等效非整数匝磁场线圈的方法
EP3800478A1 (de) 2019-10-06 2021-04-07 Université catholique de Louvain Verbesserte birdcage-antenne
US11372065B2 (en) * 2020-02-07 2022-06-28 Quality Electrodynamics, Llc Method to isolate resonant radio frequency (RF) coils
CN216434341U (zh) * 2021-09-26 2022-05-03 深圳市联影高端医疗装备创新研究院 一种射频线圈

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694255A (en) * 1983-11-04 1987-09-15 General Electric Company Radio frequency field coil for NMR
US4642569A (en) * 1983-12-16 1987-02-10 General Electric Company Shield for decoupling RF and gradient coils in an NMR apparatus
US4692705A (en) * 1983-12-23 1987-09-08 General Electric Company Radio frequency field coil for NMR
FI853150A7 (fi) * 1984-10-09 1986-04-10 Gen Electric Radiotaajuuskenttä NMR:ää varten.
US4680548A (en) * 1984-10-09 1987-07-14 General Electric Company Radio frequency field coil for NMR
US4638253A (en) * 1984-10-29 1987-01-20 General Electric Company Mutual inductance NMR RF coil matching device
JPS61196144A (ja) * 1985-02-27 1986-08-30 Shimadzu Corp Ｎｍｒ−ｃｔ装置用アンテナ回路
US4680551A (en) * 1985-10-07 1987-07-14 General Electric Company Method for homogenizing a static magnetic field over an arbitrary volume
US4833409A (en) * 1987-12-21 1989-05-23 General Electric Company Apparatus for dynamically disabling an NMR field coil

Also Published As

Publication number Publication date
DE68917630D1 (de) 1994-09-29
EP0336728B1 (de) 1994-08-24
EP0336728A3 (en) 1990-12-12
IL89508A0 (en) 1989-09-10
JPH0769410B2 (ja) 1995-07-31
JPH0213872A (ja) 1990-01-18
US4820985A (en) 1989-04-11
DE68917630T2 (de) 1995-04-13
EP0336728A2 (de) 1989-10-11

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