DE69313226D1 - Kernspinresonanzgerät - Google Patents

Kernspinresonanzgerät

Info

Publication number
DE69313226D1
DE69313226D1 DE69313226T DE69313226T DE69313226D1 DE 69313226 D1 DE69313226 D1 DE 69313226D1 DE 69313226 T DE69313226 T DE 69313226T DE 69313226 T DE69313226 T DE 69313226T DE 69313226 D1 DE69313226 D1 DE 69313226D1
Authority
DE
Germany
Prior art keywords
magnetic resonance
nuclear magnetic
resonance device
nuclear
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
DE69313226T
Other languages
English (en)
Other versions
DE69313226T2 (de
Inventor
Johan Willem Rust
Heelsbergen T R Van
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
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 Philips Electronics NV filed Critical Philips Electronics NV
Publication of DE69313226D1 publication Critical patent/DE69313226D1/de
Application granted granted Critical
Publication of DE69313226T2 publication Critical patent/DE69313226T2/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
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation
    • 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
    • G01R33/3671—Electrical details, e.g. matching or coupling of the coil to the receiver involving modulation of the quality factor of the RF 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/58—Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE69313226T 1992-09-29 1993-09-20 Kernspinresonanzgerät Expired - Fee Related DE69313226T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92202975 1992-09-29

Publications (2)

Publication Number Publication Date
DE69313226D1 true DE69313226D1 (de) 1997-09-25
DE69313226T2 DE69313226T2 (de) 1998-02-26

Family

ID=8210943

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69313226T Expired - Fee Related DE69313226T2 (de) 1992-09-29 1993-09-20 Kernspinresonanzgerät

Country Status (3)

Country Link
US (1) US5387868A (de)
JP (1) JPH06261879A (de)
DE (1) DE69313226T2 (de)

Families Citing this family (4)

* 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
FR2808138B1 (fr) * 2000-04-19 2002-06-07 Valeo Electronique Pilote d'antenne emetrice de champ magnetique a circuit rlc
CN102066966B (zh) * 2008-06-20 2016-12-21 皇家飞利浦电子股份有限公司 用于测试rf线圈的电子负载模拟器装置
US8415950B2 (en) * 2010-06-22 2013-04-09 General Electric Company System and method for parallel transmission in MR imaging

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8502273A (nl) * 1985-08-19 1987-03-16 Philips Nv Magnetisch resonantie apparaat met bird cage r.f. spoel.
US4717881A (en) * 1985-11-15 1988-01-05 Technicare Corporation Radio frequency coils for nuclear magnetic resonance imaging systems
NL8603005A (nl) * 1986-11-27 1988-06-16 Philips Nv Magnetisch resonantie apparaat met flexibele quadratuur spoelenstelsel.
US4731585A (en) * 1987-02-24 1988-03-15 Kabushiki Kaisha Toshiba Antenna coupling circuit for magnetic resonance imaging
DE9012639U1 (de) * 1989-09-18 1990-10-31 Siemens AG, 8000 München Fehlersichere Entkopplung von Sende- und Empfangsantennen bei Kernspinresonanzgeräten
US5166617A (en) * 1991-01-11 1992-11-24 Varian Associates, Inc. High power NMR probe

Also Published As

Publication number Publication date
US5387868A (en) 1995-02-07
JPH06261879A (ja) 1994-09-20
DE69313226T2 (de) 1998-02-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee