JPH0693010B2 - 軸方向の磁界均質性を改良したｎｍｒ無線周波コイル - Google Patents

軸方向の磁界均質性を改良したｎｍｒ無線周波コイル

Info

Publication number
JPH0693010B2
JPH0693010B2 JP3502729A JP50272991A JPH0693010B2 JP H0693010 B2 JPH0693010 B2 JP H0693010B2 JP 3502729 A JP3502729 A JP 3502729A JP 50272991 A JP50272991 A JP 50272991A JP H0693010 B2 JPH0693010 B2 JP H0693010B2
Authority
JP
Japan
Prior art keywords
loop
shield
magnetic field
coil assembly
phases
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
JP3502729A
Other languages
English (en)
Japanese (ja)
Other versions
JPH04507005A (ja
Inventor
ヘイズ，セシル・エドワード
フー，トーマス・クウォック―ファ
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 Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of JPH04507005A publication Critical patent/JPH04507005A/ja
Publication of JPH0693010B2 publication Critical patent/JPH0693010B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01R33/345—Constructional details, e.g. resonators, specially adapted to MR of waveguide type
    • G01R33/3453—Transverse electromagnetic [TEM] 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP3502729A 1990-01-19 1990-12-07 軸方向の磁界均質性を改良したｎｍｒ無線周波コイル Expired - Lifetime JPH0693010B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US467,474 1990-01-19
US07/467,474 US5053711A (en) 1990-01-19 1990-01-19 Nmr radio frequency coil with improved axial field homogeneity
PCT/US1990/007214 WO1991010916A1 (en) 1990-01-19 1990-12-07 Nmr radio frequency coil with improved axial field homogeneity

Publications (2)

Publication Number Publication Date
JPH04507005A JPH04507005A (ja) 1992-12-03
JPH0693010B2 true JPH0693010B2 (ja) 1994-11-16

Family

ID=23855847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3502729A Expired - Lifetime JPH0693010B2 (ja) 1990-01-19 1990-12-07 軸方向の磁界均質性を改良したｎｍｒ無線周波コイル

Country Status (5)

Country Link
US (1) US5053711A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH0693010B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE4092429T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2255189A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1991010916A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144240A (en) * 1985-08-14 1992-09-01 Picker International, Inc. Nmr spectroscopy and imaging coil
US5194811A (en) * 1990-08-02 1993-03-16 Fox Chase Cancer Center Radio frequency volume resonator for nuclear magnetic resonance
US5212450A (en) * 1990-10-25 1993-05-18 Fox Chase Cancer Center Radio frequency volume resonator for nuclear magnetic resonance
US5202635A (en) * 1991-01-17 1993-04-13 Fox Chase Cancer Center Radio frequency volume resonator for nuclear magnetic resonance
JP3233974B2 (ja) * 1992-04-09 2001-12-04 株式会社東芝 Ｍｒｉ用高周波磁界シールド
US5432449A (en) * 1993-02-25 1995-07-11 General Electric Company Test apparatus for magnetic resonance imaging systems
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
DE69634908T2 (de) * 1995-04-18 2006-04-27 Koninklijke Philips Electronics N.V. Rf-spulenanordnung für ein gerät für magnetische resonanzuntersuchungen
US7598739B2 (en) * 1999-05-21 2009-10-06 Regents Of The University Of Minnesota Radio frequency gradient, shim and parallel imaging coil
CA2373526A1 (en) * 1999-05-21 2000-11-30 The General Hospital Corporation Tem resonator for magnetic resonance imaging
US6232779B1 (en) * 1999-08-25 2001-05-15 General Electric Company NMR RF coil with improved resonant tuning and field containment
US6636040B1 (en) 1999-12-17 2003-10-21 Fonar Corporation MRI antenna
US6847210B1 (en) 1999-12-17 2005-01-25 Fonar Corporation MRI antenna
US6535084B1 (en) * 2000-01-15 2003-03-18 Ge Medical Systems Global Technology Company, Llc Method and apparatus for designing an RF coil assembly
US6954068B1 (en) 2000-01-21 2005-10-11 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus
US6556012B2 (en) 2000-01-21 2003-04-29 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus
US6567685B2 (en) 2000-01-21 2003-05-20 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus
GB2360094A (en) * 2000-03-06 2001-09-12 Marconi Caswell Ltd RF screens for MRI
WO2002010786A2 (en) * 2000-07-31 2002-02-07 Regents Of The University Of Minnesota Open tem resonators for mri
US7504827B1 (en) 2001-11-14 2009-03-17 Fonar Corporation MRI test fixture
US7199580B2 (en) * 2003-10-03 2007-04-03 Halliburton Energy Services, Inc. System and methods for T1-based logging
EP1687653B1 (en) * 2003-11-18 2010-06-30 Koninklijke Philips Electronics N.V. Rf coil system for super high field (shf) mri
WO2005111645A2 (en) * 2004-05-07 2005-11-24 Regents Of The University Of Minnesota Multi-current elements for magnetic resonance radio frequency coils
WO2006076738A1 (en) * 2005-01-14 2006-07-20 Invivo Corporation High-field mode-stable resonator for mri comprising additional resonant structure
WO2006076739A2 (en) * 2005-01-14 2006-07-20 Invivo Corporation High field rf head coil for homogeneous transmit and phased array receive mode operation in magnetic resonance imaging
JP5179019B2 (ja) * 2006-04-04 2013-04-10 株式会社日立製作所 コイル装置およびそれを用いた核磁気共鳴撮像装置
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
WO2009127431A1 (en) * 2008-04-18 2009-10-22 Eidgenössische Technische Hochschule (ETH) Travelling-wave nuclear magnetic resonance method
EP2500739A1 (en) * 2011-03-15 2012-09-19 Deutsches Krebsforschungszentrum Transmission line apparatus for travelling wave MRI
KR102145001B1 (ko) * 2014-01-03 2020-08-14 삼성전자주식회사 알에프 코일 구조물
JP6342588B2 (ja) * 2015-02-03 2018-06-13 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Ｍｒｉに対する放射線透過、低コスト、軽量、多用途、複合無線周波数コイル
EP3514561A1 (en) * 2018-01-18 2019-07-24 Koninklijke Philips N.V. Multi-channel magnetic resonance imaging rf coil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439733A (en) * 1980-08-29 1984-03-27 Technicare Corporation Distributed phase RF coil
DE3133432A1 (de) * 1981-08-24 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Hochfrequenzfeld-einrichtung in einer kernspinresonanz-apparatur
DE3347597A1 (de) * 1983-12-30 1985-07-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Hochfrequenz-spulenanordnung zum erzeugen und/oder empfangen von wechselmagnetfeldern
GB8405066D0 (en) * 1984-02-27 1984-04-04 Picker Int Ltd Coil arrangements
US4594566A (en) * 1984-08-30 1986-06-10 Advanced Nmr Systems, Inc. High frequency rf coil for NMR device
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
NL8802608A (nl) * 1988-10-24 1990-05-16 Philips Nv Magnetisch resonantie apparaat met verbeterde rf spoel.

Also Published As

Publication number Publication date
DE4092429T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-06-03
GB9212688D0 (en) 1992-08-12
JPH04507005A (ja) 1992-12-03
US5053711A (en) 1991-10-01
GB2255189A (en) 1992-10-28
WO1991010916A1 (en) 1991-07-25

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