DE69313914D1 - Dynamische Verstimmung einer Feldspule der magnetischen Kernresonanz - Google Patents

Dynamische Verstimmung einer Feldspule der magnetischen Kernresonanz

Info

Publication number
DE69313914D1
DE69313914D1 DE69313914T DE69313914T DE69313914D1 DE 69313914 D1 DE69313914 D1 DE 69313914D1 DE 69313914 T DE69313914 T DE 69313914T DE 69313914 T DE69313914 T DE 69313914T DE 69313914 D1 DE69313914 D1 DE 69313914D1
Authority
DE
Germany
Prior art keywords
magnetic resonance
field coil
resonance field
detuning
dynamic
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
DE69313914T
Other languages
English (en)
Other versions
DE69313914T2 (de
Inventor
Ralph Sarkis Hashoian
Robert William Prost
Perry Scott Frederick
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 DE69313914D1 publication Critical patent/DE69313914D1/de
Application granted granted Critical
Publication of DE69313914T2 publication Critical patent/DE69313914T2/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
    • G01R33/34076—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
    • G01R33/36—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
    • G01R33/3657—Decoupling of multiple RF coils wherein the multiple RF coils do not have the same function in MR, e.g. decoupling of a transmission coil from a 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE69313914T 1992-04-27 1993-04-19 Dynamische Verstimmung einer Feldspule der magnetischen Kernresonanz Expired - Fee Related DE69313914T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/874,656 US5243287A (en) 1992-04-27 1992-04-27 Dynamically detuned NMR field coil

Publications (2)

Publication Number Publication Date
DE69313914D1 true DE69313914D1 (de) 1997-10-23
DE69313914T2 DE69313914T2 (de) 1998-04-02

Family

ID=25364268

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69313914T Expired - Fee Related DE69313914T2 (de) 1992-04-27 1993-04-19 Dynamische Verstimmung einer Feldspule der magnetischen Kernresonanz

Country Status (5)

Country Link
US (1) US5243287A (de)
EP (1) EP0568225B1 (de)
JP (1) JPH0647017A (de)
DE (1) DE69313914T2 (de)
IL (1) IL105368A (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5773985A (en) * 1996-06-05 1998-06-30 Wiltron Company One port complex transmission and group delay measurements
DE10050725C2 (de) * 2000-10-13 2002-10-17 Siemens Ag Induktiv gekoppelte Empfangsspulenanordnung für die Kernspintomographie
DE10051155C2 (de) * 2000-10-16 2002-09-19 Siemens Ag Inhärent entkoppelte MR-Empfangsspulenanordnung
US6791328B1 (en) 2003-06-06 2004-09-14 General Electric Company Method and apparatus for very high field magnetic resonance imaging systems
DE10356274B4 (de) * 2003-11-28 2007-06-14 Siemens Ag Verstimmschaltungseinheit
JP4639763B2 (ja) * 2004-11-12 2011-02-23 三菱電機株式会社 磁気共鳴イメージング装置
DE102005002094A1 (de) * 2005-01-14 2006-07-27 Schleifring Und Apparatebau Gmbh HF - Spulen für Kernspintomographen
DE102005030745B4 (de) * 2005-06-29 2008-05-29 Schleifring Und Apparatebau Gmbh HF-Spulen für Kernspintomographen
JP4664797B2 (ja) * 2005-10-13 2011-04-06 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｍｒｉ装置
CN101819263A (zh) * 2010-03-23 2010-09-01 苏州工业园区朗润科技有限公司 用于核磁共振系统中射频发射线圈的失谐电路和方法
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
DE102011086561B4 (de) * 2011-11-17 2013-06-13 Siemens Aktiengesellschaft MRT-System, Empfangsvorrichtung für ein MRT-System sowie Verfahren zum Gewinnen eines MR-Signals in einem MRT-System
CA2871384C (en) * 2012-04-30 2020-04-21 Children's Hospital Medical Center Acoustic noise reducing rf coil for magnetic resonance imaging
CN103926545B (zh) * 2013-01-10 2017-09-19 西门子(深圳)磁共振有限公司 一种发射天线选择器和磁共振成像系统
DE102013214285A1 (de) * 2013-07-22 2015-01-22 Siemens Aktiengesellschaft Verwendung mehrerer TX-Spulen
KR101909070B1 (ko) * 2016-09-29 2018-12-10 삼성전자주식회사 Rf 수신 코일 및 이를 포함하는 국부 코일 장치
CN110088640A (zh) * 2016-12-15 2019-08-02 皇家飞利浦有限公司 与带电粒子加速器系统兼容的磁共振天线

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620155A (en) * 1984-08-16 1986-10-28 General Electric Company Nuclear magnetic resonance imaging antenna subsystem having a plurality of non-orthogonal surface coils
US4680548A (en) * 1984-10-09 1987-07-14 General Electric Company Radio frequency field coil for NMR
US5144240A (en) * 1985-08-14 1992-09-01 Picker International, Inc. Nmr spectroscopy and imaging coil
NL8603252A (nl) * 1986-12-22 1988-07-18 Philips Nv Magnetisch resonantie-apparaat met verstemde rf-spoel.
NL8603251A (nl) * 1986-12-22 1988-07-18 Philips Nv Magnetisch resonantie-apparaat met inschakelbare bird-cage r.f.-spoel.
JPS6443241A (en) * 1987-08-10 1989-02-15 Toshiba Corp Probe coil apparatus for magnetic resonance imaging apparatus
US4782298A (en) * 1987-09-01 1988-11-01 The Regents Of The University Of California MRI QD RF coil having diode switched detuning circuit producing reduced artifact
US4833409A (en) * 1987-12-21 1989-05-23 General Electric Company Apparatus for dynamically disabling an NMR field coil
DE9012639U1 (de) * 1989-09-18 1990-10-31 Siemens AG, 8000 München Fehlersichere Entkopplung von Sende- und Empfangsantennen bei Kernspinresonanzgeräten
US5075624A (en) * 1990-05-29 1991-12-24 North American Philips Corporation Radio frequency quadrature coil construction for magnetic resonance imaging (mri) apparatus

Also Published As

Publication number Publication date
IL105368A (en) 1995-03-15
EP0568225B1 (de) 1997-09-17
EP0568225A1 (de) 1993-11-03
US5243287A (en) 1993-09-07
IL105368A0 (en) 1993-08-18
JPH0647017A (ja) 1994-02-22
DE69313914T2 (de) 1998-04-02

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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

Representative=s name: ROEGER UND KOLLEGEN, 73728 ESSLINGEN

8339 Ceased/non-payment of the annual fee