DE69026552T2 - Magnetische Resonanz-Sonden - Google Patents

Magnetische Resonanz-Sonden

Info

Publication number
DE69026552T2
DE69026552T2 DE69026552T DE69026552T DE69026552T2 DE 69026552 T2 DE69026552 T2 DE 69026552T2 DE 69026552 T DE69026552 T DE 69026552T DE 69026552 T DE69026552 T DE 69026552T DE 69026552 T2 DE69026552 T2 DE 69026552T2
Authority
DE
Germany
Prior art keywords
magnetic resonance
resonance probes
probes
magnetic
resonance
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
DE69026552T
Other languages
English (en)
Other versions
DE69026552D1 (de
Inventor
Mehrdad Mehdizadeh
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.)
Philips Nuclear Medicine Inc
Original Assignee
Picker International Inc
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 Picker International Inc filed Critical Picker International Inc
Application granted granted Critical
Publication of DE69026552D1 publication Critical patent/DE69026552D1/de
Publication of DE69026552T2 publication Critical patent/DE69026552T2/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
    • 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
    • G01R33/34046—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
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34007—Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
    • 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
    • G01R33/34084—Constructional details, e.g. resonators, specially adapted to MR implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts
    • 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
DE69026552T 1989-08-11 1990-08-06 Magnetische Resonanz-Sonden Expired - Fee Related DE69026552T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/392,653 US5045792A (en) 1985-08-14 1989-08-11 Split and non-circular magnetic resonance probes with optimum field uniformity

Publications (2)

Publication Number Publication Date
DE69026552D1 DE69026552D1 (de) 1996-05-23
DE69026552T2 true DE69026552T2 (de) 1996-10-31

Family

ID=23551477

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69026552T Expired - Fee Related DE69026552T2 (de) 1989-08-11 1990-08-06 Magnetische Resonanz-Sonden

Country Status (4)

Country Link
US (1) US5045792A (de)
EP (1) EP0412749B1 (de)
JP (1) JP2909600B2 (de)
DE (1) DE69026552T2 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280248A (en) * 1992-07-24 1994-01-18 Picker International, Inc. Biplanar RF coil for magnetic resonance imaging systems
WO1991000528A1 (de) * 1989-07-05 1991-01-10 MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. Probenkopf für die kernresonanz-ganzkörper-tomographie oder die ortsabhängige in-vivo kernresonanz-spektroskopie
DE4024599C2 (de) * 1989-08-16 1996-08-14 Siemens Ag Hochfrequenz-Antenne eines Kernspintomographen
DE4019046A1 (de) * 1990-06-15 1991-12-19 Philips Patentverwaltung Oberflaechenspule fuer kernresonanzuntersuchungen
US5168230A (en) * 1990-08-17 1992-12-01 General Electric Dual frequency nmr surface coil pair with interleaved lobe areas
US5221902A (en) * 1990-10-22 1993-06-22 Medical Advances, Inc. NMR neck coil with passive decoupling
US5564421A (en) * 1991-04-04 1996-10-15 Instrumentarium Corporation VHF applicator for magnetic resonance imaging
US5510714A (en) * 1991-08-09 1996-04-23 Hitachi, Ltd. Magnetic resonance imaging apparatus and RF coil employed therein
DE69221835T2 (de) * 1991-12-11 1998-03-05 Philips Electronics Nv Magnetresonanzgerät mit einer Vogelkäfig-RF-Spule
DE4142263C2 (de) * 1991-12-20 1994-03-24 Bruker Analytische Messtechnik Gradientenspulensystem
US5457387A (en) * 1993-07-06 1995-10-10 Picker International, Inc. Magnetic resonance imager with removable element RF coil
US5585724A (en) * 1995-06-12 1996-12-17 Picker International, Inc. Magnetic resonance gradient coils with interstitial gap
US5602479A (en) * 1995-08-08 1997-02-11 Picker International, Inc. Quadrature radio frequency coil for magnetic resonance imaging
US5696449A (en) * 1996-06-03 1997-12-09 General Electric Company RF coil for open MR magnet
US5898306A (en) * 1997-04-09 1999-04-27 Regents Of The University Of Minnesota Single circuit ladder resonator quadrature surface RF coil
US7598739B2 (en) 1999-05-21 2009-10-06 Regents Of The University Of Minnesota Radio frequency gradient, shim and parallel imaging coil
EP1230559A2 (de) * 1999-05-21 2002-08-14 The General Hospital Corporation Tem resonator für die bildgebung mittels magnetischer resonanz
US6535084B1 (en) * 2000-01-15 2003-03-18 Ge Medical Systems Global Technology Company, Llc Method and apparatus for designing an RF coil assembly
KR20030036663A (ko) * 2000-07-31 2003-05-09 리전츠 오브 더 유니버스티 오브 미네소타 무선 주파 자계 유닛
US20050073309A1 (en) * 2003-10-01 2005-04-07 Williams Neil R. Magnetic resonance coil modules
CA2565248C (en) * 2004-05-07 2014-07-08 Regents Of The University Of Minnesota Multi-current elements for magnetic resonance radio frequency coils
CN100592101C (zh) * 2004-07-29 2010-02-24 皇家飞利浦电子股份有限公司 用于在磁共振成像设备中发射和接收射频磁场的电线圈系统以及具有这种电线圈系统的磁共振成像设备
JP2009513219A (ja) * 2005-10-28 2009-04-02 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 Ｍｒｉ用の撮像領域特定無線周波数コイル
DE102013217555B3 (de) 2013-09-03 2014-12-04 Siemens Aktiengesellschaft Kombinierte Shim- und HF-Spulenelemente
DE102015206788B3 (de) * 2015-04-15 2016-08-11 Bruker Biospin Ag NMR Sende/Empfangsspulenanordnung
US10928465B2 (en) * 2018-11-02 2021-02-23 Biosense Webster (Israel) Ltd. Magnetic transmitters for a magnetic tracking system

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607225A (en) * 1983-07-19 1986-08-19 Regents Of The University Of California Apparatus and method for reducing spurious currents in NMR imaging apparatus induced by pulsed gradient fields
US5177443A (en) * 1983-08-12 1993-01-05 Picker International Limited Nuclear magnetic resonance apparatus
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
GB2151791A (en) * 1983-12-23 1985-07-24 Gen Electric RF Field coils for NMR apparatus
GB8334374D0 (en) * 1983-12-23 1984-02-01 Picker Int Ltd Coil arrangements
NL8402380A (nl) * 1984-07-30 1986-02-17 Philips Nv Kernspin resonantie apparaat met een zend-meetspoel voor hoge frequenties.
US4634980A (en) * 1984-08-16 1987-01-06 Picker International, Inc. Nuclear magnetic resonance radio frequency antenna
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
US4845613A (en) * 1984-11-08 1989-07-04 Elscint Ltd. Radio frequency excitation and gradient pulse controller having plurality of channels for transmitting instruction and Rf pulse pattern data to a magnetic resonance imaging system
US4665368A (en) * 1985-04-16 1987-05-12 Yokogawa Hokushin Electric Corporation NMR imaging apparatus
EP0208236B1 (de) * 1985-07-10 1992-10-21 Hitachi, Ltd. Verfahren zur Bilderzeugung mittels magnetischer Kernresonanz
JPS639432A (ja) * 1986-06-30 1988-01-16 株式会社東芝 磁気共鳴イメ−ジング装置のデ−タ収集方法
NL8603076A (nl) * 1986-12-03 1988-07-01 Philips Nv Gradient spoel voor magnetisch kernspin apparaat.
NL8603251A (nl) * 1986-12-22 1988-07-18 Philips Nv Magnetisch resonantie-apparaat met inschakelbare bird-cage r.f.-spoel.
GB2208937B (en) * 1987-08-21 1992-04-01 Fuji Electric Co Ltd High frequency coil
IL85785A (en) * 1988-03-18 1991-07-18 Elscint Ltd Quadrature surface coil for resonance spectroscopy or imaging system
US4845431A (en) * 1988-03-18 1989-07-04 University Of Pittsburgh Variable aperture, variable frequency extremity coil for magnetic resonance imaging
EP0389868B1 (de) * 1989-03-29 1995-09-13 Siemens Aktiengesellschaft Kernspintomograph

Also Published As

Publication number Publication date
JP2909600B2 (ja) 1999-06-23
JPH03149033A (ja) 1991-06-25
US5045792A (en) 1991-09-03
EP0412749B1 (de) 1996-04-17
EP0412749A3 (en) 1991-09-18
DE69026552D1 (de) 1996-05-23
EP0412749A2 (de) 1991-02-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE REICHEL UND REICHEL, 60322 FRANKFURT

8328 Change in the person/name/address of the agent

Representative=s name: 2K PATENTANWAELTE BLASBERG KEWITZ & REICHEL, PARTN

8339 Ceased/non-payment of the annual fee