DE69032436D1 - Vorrichtung mit magnetischer Resonanz mit einstellbarer Ausbeute eines Signalverstärkers - Google Patents

Vorrichtung mit magnetischer Resonanz mit einstellbarer Ausbeute eines Signalverstärkers

Info

Publication number
DE69032436D1
DE69032436D1 DE69032436T DE69032436T DE69032436D1 DE 69032436 D1 DE69032436 D1 DE 69032436D1 DE 69032436 T DE69032436 T DE 69032436T DE 69032436 T DE69032436 T DE 69032436T DE 69032436 D1 DE69032436 D1 DE 69032436D1
Authority
DE
Germany
Prior art keywords
magnetic resonance
signal amplifier
resonance device
adjustable output
adjustable
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
DE69032436T
Other languages
English (en)
Other versions
DE69032436T2 (de
Inventor
Antoon Frans Mehlkopf
Johannes Hendrik Den Boef
Rolf Jean Maria Lioen
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
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE69032436D1 publication Critical patent/DE69032436D1/de
Publication of DE69032436T2 publication Critical patent/DE69032436T2/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
    • G01R33/44—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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE1990632436 1989-01-27 1990-01-22 Vorrichtung mit magnetischer Resonanz mit einstellbarer Ausbeute eines Signalverstärkers Expired - Fee Related DE69032436T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8900205A NL8900205A (nl) 1989-01-27 1989-01-27 Magnetisch resonantie-apparaat met selekteerbare voorversterker-instelling.

Publications (2)

Publication Number Publication Date
DE69032436D1 true DE69032436D1 (de) 1998-07-30
DE69032436T2 DE69032436T2 (de) 1999-02-04

Family

ID=19854029

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990632436 Expired - Fee Related DE69032436T2 (de) 1989-01-27 1990-01-22 Vorrichtung mit magnetischer Resonanz mit einstellbarer Ausbeute eines Signalverstärkers

Country Status (4)

Country Link
EP (1) EP0380174B1 (de)
JP (1) JP2993985B2 (de)
DE (1) DE69032436T2 (de)
NL (1) NL8900205A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4994746A (en) * 1989-09-05 1991-02-19 Advanced Techtronics, Inc. Method of and apparatus for nuclear magnetic resonance analysis using true logarithmic amplifier
US5451876A (en) * 1993-10-18 1995-09-19 General Electric Company MRI system with dynamic receiver gain
US6448770B1 (en) 2000-03-30 2002-09-10 Koninklijke Philips Electronics, N.V. Gain selection for magnetic resonance imaging and spectroscopy
US6943548B1 (en) 2001-06-22 2005-09-13 Fonar Corporation Adaptive dynamic range receiver for MRI
US6621433B1 (en) 2001-06-22 2003-09-16 Fonar Corporation Adaptive dynamic range receiver for MRI
US6977502B1 (en) 2002-11-04 2005-12-20 Fonar Corporation Configurable matrix receiver for MRI

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61191949A (ja) * 1985-02-19 1986-08-26 Toshiba Corp 磁気共鳴イメ−ジング装置
JPS622143A (ja) * 1985-06-28 1987-01-08 Yokogawa Electric Corp Ｎｍｒ撮像装置の自動利得調整装置
US4703267A (en) * 1985-07-17 1987-10-27 Advanced Nmr Systems, Inc. High dynamic range in NMR data acquisition
US4740744A (en) * 1985-09-18 1988-04-26 Lp Com Digital signal processing apparatus for analog signals having wide frequency and dynamic ranges

Also Published As

Publication number Publication date
EP0380174B1 (de) 1998-06-24
EP0380174A1 (de) 1990-08-01
DE69032436T2 (de) 1999-02-04
JP2993985B2 (ja) 1999-12-27
NL8900205A (nl) 1990-08-16
JPH02239840A (ja) 1990-09-21

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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