BR8603929A - Aparelho de imagem de ressonancia magnetica o qual inclui uma bobina de radiofrequencia - Google Patents

Aparelho de imagem de ressonancia magnetica o qual inclui uma bobina de radiofrequencia

Info

Publication number
BR8603929A
BR8603929A BR8603929A BR8603929A BR8603929A BR 8603929 A BR8603929 A BR 8603929A BR 8603929 A BR8603929 A BR 8603929A BR 8603929 A BR8603929 A BR 8603929A BR 8603929 A BR8603929 A BR 8603929A
Authority
BR
Brazil
Prior art keywords
radio frequency
magnetic resonance
frequency coil
resonance image
image appliance
Prior art date
Application number
BR8603929A
Other languages
English (en)
Inventor
Rudolf Kemner
Wilhelmus Reinerius Maria Mens
Hilco Theodorus Kalmijn
Original Assignee
Philips 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 Philips Nv filed Critical Philips Nv
Publication of BR8603929A publication Critical patent/BR8603929A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
    • G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
    • 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
    • G01R33/34076—Birdcage 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
BR8603929A 1985-08-19 1986-08-18 Aparelho de imagem de ressonancia magnetica o qual inclui uma bobina de radiofrequencia BR8603929A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8502273A NL8502273A (nl) 1985-08-19 1985-08-19 Magnetisch resonantie apparaat met bird cage r.f. spoel.

Publications (1)

Publication Number Publication Date
BR8603929A true BR8603929A (pt) 1987-03-24

Family

ID=19846432

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8603929A BR8603929A (pt) 1985-08-19 1986-08-18 Aparelho de imagem de ressonancia magnetica o qual inclui uma bobina de radiofrequencia

Country Status (11)

Country Link
US (1) US4737718A (pt)
EP (1) EP0213665B1 (pt)
JP (1) JPH0775601B2 (pt)
KR (1) KR870002447A (pt)
CN (1) CN86105283A (pt)
BR (1) BR8603929A (pt)
CA (1) CA1254618A (pt)
DE (1) DE3677292D1 (pt)
FI (1) FI863321A (pt)
IL (1) IL79759A0 (pt)
NL (1) NL8502273A (pt)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2208937B (en) * 1987-08-21 1992-04-01 Fuji Electric Co Ltd High frequency coil
US4833409A (en) * 1987-12-21 1989-05-23 General Electric Company Apparatus for dynamically disabling an NMR field coil
NL8802608A (nl) * 1988-10-24 1990-05-16 Philips Nv Magnetisch resonantie apparaat met verbeterde rf spoel.
NL8802609A (nl) * 1988-10-24 1990-05-16 Philips Nv Magnetisch resonantie apparaat met geoptimaliseerd detectieveld.
US5177441A (en) * 1989-06-16 1993-01-05 Picker International, Inc. Elliptical cross section gradient oil
EP0486590B1 (en) * 1989-08-11 1996-11-27 British Technology Group Ltd Resonant cavities for nmr
NL8903066A (nl) * 1989-12-14 1991-07-01 Philips Nv Magnetisch resonantie apparaat met beeldfout reductie.
NL9001298A (nl) * 1990-06-08 1992-01-02 Philips Nv Rf spoelenstelsel in magnetisch resonantie apparaat.
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
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
US5387868A (en) * 1992-09-29 1995-02-07 U.S. Philips Corporation Magnetic resonance apparatus
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
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
US5744957A (en) * 1995-08-15 1998-04-28 Uab Research Foundation Cavity resonator for NMR systems
WO2000072033A2 (en) * 1999-05-21 2000-11-30 The General Hospital Corporation Tem resonator for magnetic resonance imaging
US7598739B2 (en) * 1999-05-21 2009-10-06 Regents Of The University Of Minnesota Radio frequency gradient, shim and parallel imaging coil
CA2417525A1 (en) * 2000-07-31 2002-02-07 Regents Of The University Of Minnesota Open tem resonators for mri
DE60225039T2 (de) * 2001-10-24 2009-03-05 Koninklijke Philips Electronics N.V. Rf-spule mit zwei parallelen endleitern
EP1514140A4 (en) * 2002-05-17 2006-01-25 Mr Instr Inc CAVITY RESONATOR FOR MR SYSTEMS
CN100526906C (zh) * 2002-11-27 2009-08-12 皇家飞利浦电子股份有限公司 退化的笼式线圈和使用该线圈的磁共振成像***及方法
KR20070030208A (ko) * 2004-05-07 2007-03-15 리전츠 오브 더 유니버스티 오브 미네소타 자기 공명 무선 주파수 코일용 다중 전류 요소
US7659719B2 (en) * 2005-11-25 2010-02-09 Mr Instruments, Inc. Cavity resonator for magnetic resonance systems
US8542017B2 (en) * 2009-12-21 2013-09-24 Nxp B.V. System and method for measuring the shape of an organ of a patient using a magnetic induction radio sensor integrated in a stretchable strap
JP5685476B2 (ja) * 2011-04-11 2015-03-18 株式会社日立製作所 磁気共鳴イメージング装置
KR101631777B1 (ko) 2011-10-26 2016-06-17 다이니치 세이카 고교 가부시키가이샤 방사성 요오드의 제거방법 및 방사성 요오드 제거용 친수성 수지
CA2859938C (en) 2011-12-28 2016-11-15 Dainichiseika Color & Chemicals Mfg. Co., Ltd. Method and hydrophilic resin composition for removal of radioactive iodine and/or radioactive cesium
CN104054137B (zh) 2012-01-18 2016-09-07 大日精化工业株式会社 放射性铯的除去方法、用于除去放射性铯的亲水性树脂组合物、放射性碘和放射性铯的除去方法以及用于除去放射性碘和放射性铯的亲水性树脂组合物
EP2825897B1 (en) 2012-03-14 2021-08-25 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. A method for multi-mode, multi-load, and multi-domain optimization of a multi-channel near-field rf transmitter
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
CA2898272C (en) 2013-02-19 2017-08-29 Dainichiseika Color & Chemicals Mfg. Co., Ltd. Method for removing radioactive cesium, hydrophilic resin composition for removal of radioactive cesium, method for removing radioactive iodine and radioactive cesium, and hydrophilic resin composition for removal of radioactive iodine and radioactive cesium
US10057642B2 (en) * 2015-10-06 2018-08-21 Comcast Cable Communications, Llc Controlling the provision of power to one or more devices
US11956503B2 (en) 2015-10-06 2024-04-09 Comcast Cable Communications, Llc Controlling a device based on an audio input
DE102016007832A1 (de) 2016-06-27 2017-12-28 Giesecke+Devrient Mobile Security Gmbh Effizientes Authentifizieren

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2050062B (en) * 1979-05-25 1983-07-20 Emi Ltd Coils for electromagnets with uniform fields
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
US4694255A (en) * 1983-11-04 1987-09-15 General Electric Company Radio frequency field coil for NMR
US5274332A (en) * 1983-11-14 1993-12-28 General Electric Company Inductively coupled multi-section radio frequency field coil for NMR
GB8334374D0 (en) * 1983-12-23 1984-02-01 Picker Int Ltd Coil arrangements
DE3347597A1 (de) * 1983-12-30 1985-07-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Hochfrequenz-spulenanordnung zum erzeugen und/oder empfangen von wechselmagnetfeldern
FI853150L (fi) * 1984-10-09 1986-04-10 Gen Electric Radiofrekvensfaelt foer nmr.
US4638253A (en) * 1984-10-29 1987-01-20 General Electric Company Mutual inductance NMR RF coil matching device

Also Published As

Publication number Publication date
FI863321A0 (fi) 1986-08-15
EP0213665B1 (en) 1991-01-30
FI863321A (fi) 1987-02-20
CA1254618A (en) 1989-05-23
KR870002447A (ko) 1987-03-31
JPS6244239A (ja) 1987-02-26
NL8502273A (nl) 1987-03-16
IL79759A0 (en) 1986-11-30
DE3677292D1 (de) 1991-03-07
CN86105283A (zh) 1987-03-18
US4737718A (en) 1988-04-12
EP0213665A1 (en) 1987-03-11
JPH0775601B2 (ja) 1995-08-16

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