DE69533692D1 - Anordnung von rf-spulen für ein gerät der magnetischen resonanz - Google Patents

Anordnung von rf-spulen für ein gerät der magnetischen resonanz

Info

Publication number
DE69533692D1
DE69533692D1 DE69533692T DE69533692T DE69533692D1 DE 69533692 D1 DE69533692 D1 DE 69533692D1 DE 69533692 T DE69533692 T DE 69533692T DE 69533692 T DE69533692 T DE 69533692T DE 69533692 D1 DE69533692 D1 DE 69533692D1
Authority
DE
Germany
Prior art keywords
coils
arrangement
magnetic resonance
resonance device
magnetic
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
DE69533692T
Other languages
English (en)
Other versions
DE69533692T2 (de
Inventor
Marie Borsboom
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
Koninklijke Philips Electronics 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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE69533692D1 publication Critical patent/DE69533692D1/de
Application granted granted Critical
Publication of DE69533692T2 publication Critical patent/DE69533692T2/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
    • G01R33/32—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
    • G01R33/34—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
    • G01R33/34069—Saddle 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
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
    • 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
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
    • G01R33/365—Decoupling of multiple RF coils wherein the multiple RF coils have the same function in MR, e.g. decoupling of a receive coil from another receive coil in a receive coil array, decoupling of a transmission coil from another transmission coil in a transmission coil array
    • 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
    • G01R33/3678—Electrical details, e.g. matching or coupling of the coil to the receiver involving quadrature drive or detection, e.g. a circularly polarized RF magnetic field
DE69533692T 1994-07-28 1995-07-21 Anordnung von rf-spulen für ein gerät der magnetischen resonanz Expired - Fee Related DE69533692T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP94202206 1994-07-28
EP94202206 1994-07-28
PCT/IB1995/000580 WO1996003661A1 (en) 1994-07-28 1995-07-21 Rf coil arrangement for a magnetic resonance apparatus

Publications (2)

Publication Number Publication Date
DE69533692D1 true DE69533692D1 (de) 2004-12-02
DE69533692T2 DE69533692T2 (de) 2005-10-27

Family

ID=8217077

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69533692T Expired - Fee Related DE69533692T2 (de) 1994-07-28 1995-07-21 Anordnung von rf-spulen für ein gerät der magnetischen resonanz

Country Status (5)

Country Link
US (1) US5677629A (de)
EP (1) EP0721592B1 (de)
JP (1) JP3595339B2 (de)
DE (1) DE69533692T2 (de)
WO (1) WO1996003661A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3628025B2 (ja) * 1995-04-18 2005-03-09 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 磁気共鳴装置用のｒｆコイル配置
WO2001027647A1 (en) * 1999-10-11 2001-04-19 Koninklijke Philips Electronics N.V. Mri rf coils with overlapping regions of sensitivity
DE10127266C2 (de) * 2001-06-05 2003-12-24 Siemens Ag Aktive NMR-Sende- oder Empfangsanlage
WO2003002199A2 (de) * 2001-06-26 2003-01-09 Siemens Aktiengesellschaft Magnetresonanzanlage und verfahren zum betrieb
DE10255261A1 (de) * 2002-11-27 2004-06-09 Philips Intellectual Property & Standards Gmbh HF-Spulenanordnung für Magnetresonanz-Bildgerät
DE102005047883B4 (de) 2005-10-06 2008-11-20 Bruker Biospin Ag Kernspinresonanz-Messkopf umfassend mindestens zwei Spulen/Resonatoranordnungen mit reduzierter Kopplung
US8078103B2 (en) * 2005-10-31 2011-12-13 Zih Corp. Multi-element RFID coupler
EP2096986B1 (de) * 2006-12-20 2018-07-25 Philips Intellectual Property & Standards GmbH Anordnung und verfahren zur beeinflussung und/oder erkennung magnetischer partikel in einem wirkungsbereich
JP5486313B2 (ja) * 2006-12-20 2014-05-07 コーニンクレッカ フィリップス エヌ ヴェ 作用領域の磁性粒子に影響を及ぼし、及び／又は該磁性粒子を検出する装置並びに方法
WO2008078269A2 (en) * 2006-12-20 2008-07-03 Philips Intellectual Property & Standards Gmbh Arrangement and method for influencing and/or detecting magnetic particles in a region of action, coil arrangement
US8571630B2 (en) * 2007-01-30 2013-10-29 Koninklijke Philips N.V. Transmission line for RF signals without matching networks
JP4879829B2 (ja) * 2007-07-19 2012-02-22 株式会社日立製作所 高周波コイル及び磁気共鳴撮像装置
GB201200219D0 (en) * 2012-01-09 2012-02-22 Calder Martin A clock signal generator for a digital circuit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131946A1 (de) * 1981-08-12 1983-03-17 Siemens AG, 1000 Berlin und 8000 München "hochfrequenz-magnetsystem in einer einrichtung der kernspinresonanz-technik"
US4694255A (en) * 1983-11-04 1987-09-15 General Electric Company Radio frequency field coil for NMR
DE3347597A1 (de) * 1983-12-30 1985-07-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Hochfrequenz-spulenanordnung zum erzeugen und/oder empfangen von wechselmagnetfeldern
US4649348A (en) * 1984-08-20 1987-03-10 Technicare Corporation Radio frequency coils for nuclear magnetic resonance imaging systems
US4763074A (en) * 1987-04-01 1988-08-09 Kabushiki Kaisha Toshiba Automatic tuning circuit for magnetic resonance quadrature antenna system
AU610910B2 (en) * 1987-06-23 1991-05-30 Hafslund Nycomed Innovation Ab Improvements in and relating to magnetic resonance imaging
DE3820168A1 (de) * 1988-06-14 1989-12-21 Philips Patentverwaltung Kernspinuntersuchungsgeraet mit einer schaltung zum entkoppeln der beiden spulensysteme einer quadraturspulenanordnung
US5196796A (en) * 1991-08-06 1993-03-23 Medrad, Inc. Anatomically conformal quadrature mri surface coil
US5521506A (en) * 1993-11-19 1996-05-28 Medrad, Inc. Orthogonal adjustment of magnetic resonance surface coils

Also Published As

Publication number Publication date
EP0721592A1 (de) 1996-07-17
JPH09503151A (ja) 1997-03-31
WO1996003661A1 (en) 1996-02-08
US5677629A (en) 1997-10-14
JP3595339B2 (ja) 2004-12-02
EP0721592B1 (de) 2004-10-27
DE69533692T2 (de) 2005-10-27

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee