DE68918048D1 - Kernspinresonanzverfahren und -anordnung. - Google Patents

Kernspinresonanzverfahren und -anordnung.

Info

Publication number
DE68918048D1
DE68918048D1 DE68918048T DE68918048T DE68918048D1 DE 68918048 D1 DE68918048 D1 DE 68918048D1 DE 68918048 T DE68918048 T DE 68918048T DE 68918048 T DE68918048 T DE 68918048T DE 68918048 D1 DE68918048 D1 DE 68918048D1
Authority
DE
Germany
Prior art keywords
arrangement
magnetic resonance
nuclear magnetic
resonance method
nuclear
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
DE68918048T
Other languages
English (en)
Other versions
DE68918048T2 (de
Inventor
Boef Johannes Hendrik Den
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 Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE68918048D1 publication Critical patent/DE68918048D1/de
Publication of DE68918048T2 publication Critical patent/DE68918048T2/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
    • G01R33/44—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
    • 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)
  • 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)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE68918048T 1988-11-08 1989-11-03 Kernspinresonanzverfahren und -anordnung. Expired - Fee Related DE68918048T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8802732A NL8802732A (nl) 1988-11-08 1988-11-08 Magnetische resonantiewerkwijze en -inrichting.

Publications (2)

Publication Number Publication Date
DE68918048D1 true DE68918048D1 (de) 1994-10-13
DE68918048T2 DE68918048T2 (de) 1995-04-06

Family

ID=19853182

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68918048T Expired - Fee Related DE68918048T2 (de) 1988-11-08 1989-11-03 Kernspinresonanzverfahren und -anordnung.

Country Status (6)

Country Link
US (1) US5172059A (de)
EP (1) EP0368401B1 (de)
JP (1) JP2898317B2 (de)
DE (1) DE68918048T2 (de)
IL (1) IL92218A0 (de)
NL (1) NL8802732A (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126537A1 (de) * 1991-08-10 1993-02-11 Philips Patentverwaltung Kernresonanz-untersuchungsgeraet mit einer spulenanordnung
US5629703A (en) * 1995-08-09 1997-05-13 Tektronix, Inc. Method for reducing harmonic distortion in an analog-to-digital converter system
US6069478A (en) * 1997-11-24 2000-05-30 General Electric Corporation Magnetic resonance spectroscopic imaging having reduced parasitic side band signals
WO2001046709A1 (en) * 1999-12-20 2001-06-28 Koninklijke Philips Electronics N.V. Mri apparatus with flexible gradient control
DE10148462C1 (de) * 2001-10-01 2003-06-18 Siemens Ag Übertragungsverfahren für ein analoges Magnetresonanzsignal und hiermit korrespondierende Einrichtungen
DE10148442C2 (de) * 2001-10-01 2003-07-24 Siemens Ag Übertragungsverfahren für ein Magnetresonanzsignal und hiermit korrespondierende Spulenanordnung, Erfassungsschaltung und Magnetresonanzsignalübertragungseinrichtung
US7460043B2 (en) * 2005-06-03 2008-12-02 General Electric Company Analog-to-digital converter compensation system and method
US7161511B2 (en) * 2005-06-03 2007-01-09 General Electric Company Linearization system and method
EP1783508B1 (de) * 2005-11-04 2008-10-08 Schleifring und Apparatebau GmbH Testobjekt für Kernspintomographen
US7132826B1 (en) 2005-11-30 2006-11-07 Wisconsin Alumni Research Foundation Characterization of receiver demodulation for correcting off-axis MR imaging degradation
DE102008036496B4 (de) * 2008-08-05 2012-03-15 Siemens Aktiengesellschaft Verfahren zur Kalibrierung eines Magnetresonanzempfangskanals, Kalibrierungsdatenermittlungseinrichtung und Magnetresonanzanlage
JP5701476B2 (ja) * 2008-08-26 2015-04-15 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 脂肪定量装置、磁気共鳴イメージングシステム、および脂肪定量方法
JP6261928B2 (ja) * 2012-09-25 2018-01-17 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置およびその高周波出力測定装置
EP3819653B1 (de) 2019-11-07 2023-09-06 Siemens Healthcare GmbH Verfahren zum prüfen einer empfangskette eines magnetresonanztomographen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH524287A (de) * 1970-09-25 1972-06-15 Patelhold Patentverwertung Verfahren zur automatischen Einstellung eines Transversalfilters zur Impulsentzerrung
FR2543544B1 (fr) * 1983-03-30 1986-01-17 Ugine Kuhlmann Procede de decomposition d'un complexe d'acide orthobenzoyl-benzoique, de fluorure d'hydrogene et de trifluorure de bore
US4800574A (en) * 1983-05-10 1989-01-24 Ricoh Company, Ltd. Digital modulator/demodulator including non-linear analog-to-digital converter and circuitry compensating for the non-linearity of the converter
JPS61745A (ja) * 1984-06-13 1986-01-06 Toshiba Corp 核磁気共鳴装置
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
JPS62183677A (ja) * 1986-02-07 1987-08-12 Fuji Photo Film Co Ltd 非線形ａ／ｄ変換方法
US4731865A (en) * 1986-03-27 1988-03-15 General Electric Company Digital image correction
JPS62227342A (ja) * 1986-03-31 1987-10-06 株式会社東芝 クワドラチヤ−検波装置
NL8601002A (nl) * 1986-04-21 1987-11-16 Philips Nv Werkwijze en inrichting voor het bepalen van een kernmagnetisatieverdeling in deel van een lichaam.
FR2609222B1 (fr) * 1986-09-25 1989-11-24 France Etat Procede et dispositif de linearisation par memoire morte de la fonction de transfert d'un quadripole, et application y relative

Also Published As

Publication number Publication date
NL8802732A (nl) 1990-06-01
EP0368401A1 (de) 1990-05-16
JP2898317B2 (ja) 1999-05-31
JPH02181679A (ja) 1990-07-16
EP0368401B1 (de) 1994-09-07
DE68918048T2 (de) 1995-04-06
IL92218A0 (en) 1990-07-26
US5172059A (en) 1992-12-15

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

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

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

8339 Ceased/non-payment of the annual fee