IL97835A - Radio frequency field coil and power splitter for magnetic nuclear resonance - Google Patents

Radio frequency field coil and power splitter for magnetic nuclear resonance

Info

Publication number
IL97835A
IL97835A IL9783591A IL9783591A IL97835A IL 97835 A IL97835 A IL 97835A IL 9783591 A IL9783591 A IL 9783591A IL 9783591 A IL9783591 A IL 9783591A IL 97835 A IL97835 A IL 97835A
Authority
IL
Israel
Prior art keywords
conductive
radio frequency
nmr
frequency coil
coil
Prior art date
Application number
IL9783591A
Other languages
English (en)
Hebrew (he)
Other versions
IL97835A0 (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 IL97835A0 publication Critical patent/IL97835A0/xx
Publication of IL97835A publication Critical patent/IL97835A/en

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
    • G01R33/34—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
    • 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
    • G01R33/42—Screening
    • G01R33/422—Screening of the radio frequency 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/5659—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the RF magnetic field, e.g. spatial inhomogeneities of the RF magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
IL9783591A 1990-04-24 1991-04-12 Radio frequency field coil and power splitter for magnetic nuclear resonance IL97835A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/513,921 US5132621A (en) 1990-04-24 1990-04-24 Radio frequency field coil and power splitter for nmr

Publications (2)

Publication Number Publication Date
IL97835A0 IL97835A0 (en) 1992-06-21
IL97835A true IL97835A (en) 1994-04-12

Family

ID=24045121

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9783591A IL97835A (en) 1990-04-24 1991-04-12 Radio frequency field coil and power splitter for magnetic nuclear resonance

Country Status (4)

Country Link
US (1) US5132621A (ja)
EP (1) EP0454370A3 (ja)
JP (1) JP2659626B2 (ja)
IL (1) IL97835A (ja)

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JP3110741B2 (ja) * 1990-07-18 2000-11-20 株式会社東芝 磁気共鳴イメージング装置
DE4221759C2 (de) * 1991-10-11 1997-11-20 Hitachi Medical Corp Empfangsspulenvorrichtung für ein Kernspintomographiegerät
US5576622A (en) * 1991-11-14 1996-11-19 Fonar Corporation Shielded NMR radio frequency coil and method of performing an NMR experiment
US5367261A (en) * 1992-07-02 1994-11-22 General Electric Company Shield for a magnetic resonance imaging coil
AU4374993A (en) * 1992-07-10 1994-01-31 Doty Scientific, Inc. Solenoidal, octopolar, transverse gradient coils
US5554929A (en) * 1993-03-12 1996-09-10 Doty Scientific, Inc. Crescent gradient coils
US5530355A (en) * 1993-05-13 1996-06-25 Doty Scientific, Inc. Solenoidal, octopolar, transverse gradient coils
US5757187A (en) * 1993-06-24 1998-05-26 Wollin Ventures, Inc. Apparatus and method for image formation in magnetic resonance utilizing weak time-varying gradient fields
US5412322A (en) * 1993-06-24 1995-05-02 Wollin Ventures, Inc. Apparatus and method for spatially ordered phase encoding and for determining complex permittivity in magnetic resonance by using superimposed time-varying electric fields
US5483163A (en) * 1993-08-12 1996-01-09 The United States Of America As Represented By The Department Of Health And Human Services MRI coil using inductively coupled individually tuned elements arranged as free-pivoting components
US20010045832A1 (en) 1997-11-26 2001-11-29 Kenneth W. Belt Peripheral vascular array
US6107974A (en) * 1998-10-21 2000-08-22 Fonar Corporation Apparatus and method of generating an RF field
DE19928452A1 (de) * 1999-06-23 2000-12-28 Siemens Ag Antennensystem zum Empfang von Magnetresonanzsignalen
US7253622B2 (en) * 2005-01-14 2007-08-07 Invivo Corporation High field head coil for dual-mode operation in magnetic resonance imaging
US7345482B2 (en) * 2005-01-14 2008-03-18 Invivo Corporation High-field mode-stable resonator for magnetic resonance imaging
WO2007109426A1 (en) * 2006-03-22 2007-09-27 Koninklijke Philips Electronics, N.V. Shielded multix coil array for parallel high field mri
US7714581B2 (en) 2006-04-19 2010-05-11 Wisconsin Alumni Research Foundation RF coil assembly for magnetic resonance imaging and spectroscopy systems
US7508212B2 (en) 2007-03-22 2009-03-24 Wisconsin Alumni Research Foundation RF coil assembly and method for practicing magnetization transfer on magnetic resonance imaging and spectroscopy systems
DE102008005994B4 (de) * 2008-01-24 2012-03-29 Siemens Aktiengesellschaft Anordnung zur Ansteuerung einer Antennenanordnung
WO2010020917A1 (en) * 2008-08-20 2010-02-25 Koninklijke Philips Electronics N.V. Rf power splitter for magnetic resonance system
WO2010068299A1 (en) * 2008-12-12 2010-06-17 Yale University Parallel magnetic resonance imaging using nonlinear gradient encoding
US9423476B2 (en) * 2011-04-13 2016-08-23 New York University Apparatus, systems and methods for facilitating signal excitation and/or reception in a magnetic resonance system
IN2014CN02544A (ja) * 2011-10-18 2015-07-31 Koninkl Philips Nv
EP2850446B1 (en) * 2012-05-14 2023-07-12 Koninklijke Philips N.V. Parallel transmitter system for supplying a radio frequency signal to a plurality of coil elements of a magnetic resonance coil system
WO2014064573A1 (en) * 2012-10-25 2014-05-01 Koninklijke Philips N.V. Radio frequency (rf) birdcage coil with separately controlled ring members and rungs for use in a magnetic resonance (mr) imaging system
CN112230171B (zh) * 2020-09-08 2022-11-25 上海联影医疗科技股份有限公司 磁共振接收机、磁共振系统和信号接收方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133432A1 (de) * 1981-08-24 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Hochfrequenzfeld-einrichtung in einer kernspinresonanz-apparatur
US4694255A (en) * 1983-11-04 1987-09-15 General Electric Company Radio frequency field coil for NMR
US4692705A (en) * 1983-12-23 1987-09-08 General Electric Company Radio frequency field coil for NMR
FR2567647B1 (fr) * 1984-07-10 1987-12-18 Thomson Cgr Dispositif de creation et/ou de reception d'un champ magnetique alternatif pour appareil exploitant la resonance magnetique nucleaire
US4680548A (en) * 1984-10-09 1987-07-14 General Electric Company Radio frequency field coil for NMR
DE3522401A1 (de) * 1985-06-22 1987-01-02 Bruker Medizintech Probenkopf fuer die nmr-tomographie
US4918388A (en) * 1985-08-14 1990-04-17 Picker International, Inc. Quadrature surface coils for magnetic resonance imaging
IL77937A (en) * 1986-02-20 1989-03-31 Elscint Ltd Hybrid resonator
US4752736A (en) * 1986-07-22 1988-06-21 The Regents Of The University Of California Center fed QD MRI RF coil
US4857849A (en) * 1987-03-25 1989-08-15 Mitsubishi Denki Kabushiki Kaisha High frequency magnetic field generator for nuclear magnetic resonance
JPS63235851A (ja) * 1987-03-25 1988-09-30 Mitsubishi Electric Corp 磁気共鳴用高周波磁界発生装置
JPS6443240A (en) * 1987-08-11 1989-02-15 Mitsubishi Electric Corp High frequency coil apparatus
US4763074A (en) * 1987-04-01 1988-08-09 Kabushiki Kaisha Toshiba Automatic tuning circuit for magnetic resonance quadrature antenna system
US4751464A (en) * 1987-05-04 1988-06-14 Advanced Nmr Systems, Inc. Cavity resonator with improved magnetic field uniformity for high frequency operation and reduced dielectric heating in NMR imaging devices
US4799016A (en) * 1987-07-31 1989-01-17 General Electric Company Dual frequency NMR surface coil
NL8701949A (nl) * 1987-08-19 1989-03-16 Philips Nv Magnetisch resonantie apparaat met geintegreerde gradient-rf spoelen.
IL85785A (en) * 1988-03-18 1991-07-18 Elscint Ltd Quadrature surface coil for resonance spectroscopy or imaging system
EP0361190A1 (de) * 1988-09-23 1990-04-04 Siemens Aktiengesellschaft Oberflächenspulenanordnung für Untersuchungen mit Hilfe der kernnmagnetischen Resonanz
NL8802608A (nl) * 1988-10-24 1990-05-16 Philips Nv Magnetisch resonantie apparaat met verbeterde rf spoel.

Also Published As

Publication number Publication date
EP0454370A2 (en) 1991-10-30
EP0454370A3 (en) 1992-01-22
US5132621A (en) 1992-07-21
JPH05113473A (ja) 1993-05-07
IL97835A0 (en) 1992-06-21
JP2659626B2 (ja) 1997-09-30

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