NL8701195A - M.r.i.-inrichting met digitale zender/ontvanger. - Google Patents

M.r.i.-inrichting met digitale zender/ontvanger. Download PDF

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Publication number
NL8701195A
NL8701195A NL8701195A NL8701195A NL8701195A NL 8701195 A NL8701195 A NL 8701195A NL 8701195 A NL8701195 A NL 8701195A NL 8701195 A NL8701195 A NL 8701195A NL 8701195 A NL8701195 A NL 8701195A
Authority
NL
Netherlands
Prior art keywords
frequency
receiver
signal
output
digital
Prior art date
Application number
NL8701195A
Other languages
English (en)
Dutch (nl)
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
Priority to NL8701195A priority Critical patent/NL8701195A/nl
Priority to IL86396A priority patent/IL86396A/xx
Priority to DE8888200981T priority patent/DE3864076D1/de
Priority to EP88200981A priority patent/EP0292064B1/de
Priority to JP63119463A priority patent/JP2703261B2/ja
Priority to US07/196,534 priority patent/US4879514A/en
Publication of NL8701195A publication Critical patent/NL8701195A/nl

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
    • G01R33/3607—RF waveform generators, e.g. frequency generators, amplitude-, frequency- or phase modulators or shifters, pulse programmers, digital to analog converters for the RF signal, means for filtering or attenuating of the RF signal
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
NL8701195A 1987-05-19 1987-05-19 M.r.i.-inrichting met digitale zender/ontvanger. NL8701195A (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL8701195A NL8701195A (nl) 1987-05-19 1987-05-19 M.r.i.-inrichting met digitale zender/ontvanger.
IL86396A IL86396A (en) 1987-05-19 1988-05-16 Magnetic resonance imaging device comprising a digital transmitter/receiver
DE8888200981T DE3864076D1 (de) 1987-05-19 1988-05-17 Kernspintomographie-anlage mit digitalem sender/empfaenger.
EP88200981A EP0292064B1 (de) 1987-05-19 1988-05-17 Kernspintomographie-Anlage mit digitalem Sender/Empfänger
JP63119463A JP2703261B2 (ja) 1987-05-19 1988-05-18 磁気共鳴撮像装置
US07/196,534 US4879514A (en) 1987-05-19 1988-05-19 Magnetic resonance imaging device comprising a digital transmitter/receiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8701195A NL8701195A (nl) 1987-05-19 1987-05-19 M.r.i.-inrichting met digitale zender/ontvanger.
NL8701195 1987-05-19

Publications (1)

Publication Number Publication Date
NL8701195A true NL8701195A (nl) 1988-12-16

Family

ID=19850038

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8701195A NL8701195A (nl) 1987-05-19 1987-05-19 M.r.i.-inrichting met digitale zender/ontvanger.

Country Status (6)

Country Link
US (1) US4879514A (ja)
EP (1) EP0292064B1 (ja)
JP (1) JP2703261B2 (ja)
DE (1) DE3864076D1 (ja)
IL (1) IL86396A (ja)
NL (1) NL8701195A (ja)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821984A1 (de) * 1988-06-30 1990-04-12 Philips Patentverwaltung Schaltungsanordnung zur erzeugung von hochfrequenzsignalen fuer kernspinuntersuchungen
DE3829374A1 (de) * 1988-08-30 1990-03-22 Philips Patentverwaltung Hochfrequenzerzeuger fuer kernspinuntersuchungsgeraete
DE69033071T2 (de) * 1989-02-23 1999-09-23 Kabushiki Kaisha Toshiba, Kawasaki Verfahren zur Kernspindarstellung
US4992736A (en) * 1989-08-04 1991-02-12 General Electric Company Radio frequency receiver for a NMR instrument
US5170123A (en) * 1989-08-11 1992-12-08 Picker International, Inc. Magnetic resonance imager with digital transmitter/receiver
US4952877A (en) * 1989-08-11 1990-08-28 General Electric Company RF synthesizer or an NMR instrument
US5317261A (en) * 1991-05-27 1994-05-31 U.S. Philips Corporation Volume-selective magnetic resonance imaging method and device
JP2677063B2 (ja) * 1991-07-31 1997-11-17 株式会社島津製作所 Ｍｒ装置
US5450499A (en) * 1992-11-25 1995-09-12 Magnetic Resonance Equipment Corporation Audio speaker for use in an external magnetic field
FR2713346B1 (fr) * 1993-12-01 1996-01-12 Sextant Avionique Perfectionnement aux oscillateurs nucléaires comportant une boucle à verrouillage de phase numérique.
US5529068A (en) * 1994-06-16 1996-06-25 The Regents Of The University Of California Synchronized digital signal processor for MRI reception
US5594341A (en) * 1994-06-27 1997-01-14 Varian Associates, Inc. Nuclear magnetic resonance receiver, method and system
US5739691A (en) * 1995-11-28 1998-04-14 The Regents Of The University Of California Multi-frequency digital low pass filter for magnetic resonance imaging
EP0937993A1 (en) * 1998-02-24 1999-08-25 Council of Scientific and Industrial Research Single detection mode receiver to detect magnetic resonance in the time domain
EP1193506A3 (de) * 2000-09-29 2004-07-21 Siemens Aktiengesellschaft Verfahren zum Abtasten eines hochfrequenten Empfangssignals, insbesondere eines Hochfrequenzsignals einer Empfangsspule eines Magnetresonanzgeräts
JP3884244B2 (ja) * 2001-07-04 2007-02-21 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 Ｒｆ送信回路およびｍｒｉ装置
JP4128150B2 (ja) * 2004-03-22 2008-07-30 株式会社日立製作所 任意波形発生器を用いたラジオ波送信回路およびそれを用いた核磁気共鳴装置
JP5032189B2 (ja) * 2007-04-18 2012-09-26 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装置およびｒｆパルス生成回路
JP5372008B2 (ja) * 2007-12-11 2013-12-18 コーニンクレッカ フィリップス エヌ ヴェ Ｍｒｉ受信器における改良されたクロック生成
US8324897B2 (en) * 2009-11-11 2012-12-04 Agilent Technologies, Inc. Digital NMR signal processing systems and methods
CN116626568B (zh) * 2023-07-19 2023-10-03 中国科学院精密测量科学与技术创新研究院 一种基于混频迭代的磁共振信号频率测量方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110681A (en) * 1977-02-16 1978-08-29 International Business Machines Corporation NMR field frequency lock system
US4599565A (en) * 1981-12-15 1986-07-08 The Regents Of The University Of Calif. Method and apparatus for rapid NMR imaging using multi-dimensional reconstruction techniques
JPS58187839A (ja) * 1982-04-27 1983-11-02 Shimadzu Corp 核磁気共鳴映像装置
JPS5938636A (ja) * 1982-08-28 1984-03-02 Toshiba Corp 核磁気共鳴装置
JPS59166846A (ja) * 1983-03-11 1984-09-20 Toshiba Corp 磁気共鳴イメージング装置
JPS61745A (ja) * 1984-06-13 1986-01-06 Toshiba Corp 核磁気共鳴装置
US4623843A (en) * 1984-08-01 1986-11-18 Albert Macovski NMR imaging system using excited reference coils
US4616183A (en) * 1984-10-22 1986-10-07 General Electric Company Method for reducing baseline error components in NMR signals
US4673880A (en) * 1985-08-16 1987-06-16 Technicare Corporation Phase sensitive detection in multislice magnetic resonance imaging systems
US4677382A (en) * 1985-08-19 1987-06-30 General Electric Company Apparatus for providing multiple-species capability of single-species NMR spectrometry/imaging apparatus

Also Published As

Publication number Publication date
EP0292064B1 (de) 1991-08-07
JPS6440037A (en) 1989-02-10
IL86396A0 (en) 1988-11-15
JP2703261B2 (ja) 1998-01-26
IL86396A (en) 1991-12-12
US4879514A (en) 1989-11-07
DE3864076D1 (de) 1991-09-12
EP0292064A1 (de) 1988-11-23

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