DE3061613D1 - Method of and apparatus for determining a nuclear spin density distribution in a part of a body - Google Patents

Method of and apparatus for determining a nuclear spin density distribution in a part of a body

Info

Publication number
DE3061613D1
DE3061613D1 DE8080200588T DE3061613T DE3061613D1 DE 3061613 D1 DE3061613 D1 DE 3061613D1 DE 8080200588 T DE8080200588 T DE 8080200588T DE 3061613 T DE3061613 T DE 3061613T DE 3061613 D1 DE3061613 D1 DE 3061613D1
Authority
DE
Germany
Prior art keywords
determining
density distribution
nuclear spin
spin density
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
Application number
DE8080200588T
Other languages
English (en)
Inventor
Louis Felix Feiner
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 DE3061613D1 publication Critical patent/DE3061613D1/de
Expired 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
    • 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
    • G01R33/56518—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to eddy currents, e.g. caused by switching of the gradient magnetic field
DE8080200588T 1979-06-27 1980-06-20 Method of and apparatus for determining a nuclear spin density distribution in a part of a body Expired DE3061613D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7904986A NL7904986A (nl) 1979-06-27 1979-06-27 Werkwijze en inrichting voor het bepalen van een kernspindichtheidsverdeling in een deel van een lichaam.

Publications (1)

Publication Number Publication Date
DE3061613D1 true DE3061613D1 (en) 1983-02-17

Family

ID=19833422

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080200588T Expired DE3061613D1 (en) 1979-06-27 1980-06-20 Method of and apparatus for determining a nuclear spin density distribution in a part of a body

Country Status (6)

Country Link
US (1) US4354157A (de)
EP (1) EP0021535B1 (de)
JP (1) JPS567048A (de)
CA (1) CA1111106A (de)
DE (1) DE3061613D1 (de)
NL (1) NL7904986A (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525673A (en) * 1979-12-26 1985-06-25 Varian Associates, Inc. NMR spectrometer incorporating a re-entrant FIFO
CA1184602A (en) * 1981-01-26 1985-03-26 National Research Development Corporation Investigation of samples by n.m.r. techniques
DE3131946A1 (de) * 1981-08-12 1983-03-17 Siemens AG, 1000 Berlin und 8000 München "hochfrequenz-magnetsystem in einer einrichtung der kernspinresonanz-technik"
DE3133933A1 (de) * 1981-08-27 1983-03-17 Siemens AG, 1000 Berlin und 8000 München "gradientenspulen-system einer einrichtung der kernspinresonanz-technik"
US4486708A (en) * 1981-12-21 1984-12-04 Albert Macovski Selective material projection imaging system using nuclear magnetic resonance
NL8203519A (nl) * 1982-09-10 1984-04-02 Philips Nv Werkwijze en inrichting voor het bepalen van een kernmagnetisatieverdeling in een deel van een lichaam.
USRE32701E (en) * 1983-01-04 1988-06-21 Wisconsin Alumni Research Foundation NMR scanner with motion zeugmatography
US4516075A (en) * 1983-01-04 1985-05-07 Wisconsin Alumni Research Foundation NMR scanner with motion zeugmatography
JPS59148854A (ja) * 1983-02-14 1984-08-25 Hitachi Ltd 核磁気共鳴を用いた検査装置
JPS59190643A (ja) * 1983-04-14 1984-10-29 Hitachi Ltd 核磁気共鳴を用いた検査装置
US4639671A (en) * 1983-05-31 1987-01-27 General Electric Company Simultaneous NMR imaging system
US4613818A (en) * 1983-06-20 1986-09-23 The Medical College Of Wisconsin, Inc. Nuclear magnetic resonance blood flowmeter
DE3333755A1 (de) * 1983-09-19 1985-04-18 Siemens AG, 1000 Berlin und 8000 München Magneteinrichtung einer anlage der kernspin-tomographie mit einer abschirmvorrichtung
US4616180A (en) * 1983-11-14 1986-10-07 Technicare Corporation Nuclear magnetic resonance imaging with reduced sensitivity to motional effects
DE3347597A1 (de) * 1983-12-30 1985-07-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Hochfrequenz-spulenanordnung zum erzeugen und/oder empfangen von wechselmagnetfeldern
EP0151026A3 (de) * 1984-01-31 1987-04-08 Kabushiki Kaisha Toshiba Verfahren zur Gewinnung von Bildsignalen mittels magnetischer Kernresonanz
US4628264A (en) * 1984-03-14 1986-12-09 Advanced Nmr Systems, Inc. NMR gradient field modulation
DE3410215A1 (de) * 1984-03-20 1985-10-03 Siemens AG, 1000 Berlin und 8000 München Hochfrequenz-antenneneinrichtung in einer kernspintomographie-apparatur und verfahren zu ihrem betrieb
US4642567A (en) * 1984-06-04 1987-02-10 Indiana University Foundation Methods for two dimensional nuclear magnetic resonance imaging
GB8417290D0 (en) * 1984-07-06 1984-08-08 Picker Int Ltd Nuclear magnetic resonance method
US4635017A (en) * 1984-10-12 1987-01-06 Siemens Aktiengesellschaft Magnetic apparatus of a system for nuclear spin tomography with a shielding device
DE3563800D1 (en) * 1984-11-15 1988-08-18 Siemens Ag Magnet device for a nuclear spin resonance tomography system with an approximately cylindrical shielding arrangement
US4678996A (en) * 1985-05-07 1987-07-07 Picker International, Inc. Magnetic resonance imaging method
US4843549A (en) * 1986-02-21 1989-06-27 U.S. Philips Corporation Method of determining the spectral distribution of the nuclear magnetization in a limited volume, and device for performing the method
AU610910B2 (en) * 1987-06-23 1991-05-30 Hafslund Nycomed Innovation Ab Improvements in and relating to magnetic resonance imaging
US4885538A (en) * 1988-08-19 1989-12-05 The Regents Of The University Of California Low data rate low noise serial digital communication link for magnetic resonance imaging systems
DE4014220A1 (de) * 1989-05-16 1990-11-22 Siemens Ag Entfaltung der uebertragungsfunktion bei der bilderzeugung mittels kernmagnetischer resonanz
DE4024164A1 (de) * 1989-08-11 1991-02-14 Siemens Ag Verfahren zur verbesserung des signal-rausch-verhaeltnisses bei einem kernspin-tomographiegeraet

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824452A (en) * 1971-04-08 1974-07-16 Varian Associates Fourier transform nuclear magnetic resonance spectrometer employing means for generating random pulse intervals to avoid anomalies due to net transverse magnetization
JPS49103693A (de) * 1973-02-02 1974-10-01
CA1052861A (en) * 1975-03-18 1979-04-17 Varian Associates Gyromagnetic resonance fourier transform zeugmatography
GB1596160A (en) * 1976-12-15 1981-08-19 Nat Res Dev Nuclear magnetic resonance apparatus and methods
US4210861A (en) * 1977-07-21 1980-07-01 Hitachi, Ltd. Fourier-transform nuclear gyromagnetic resonance spectrometer
US4191919A (en) * 1978-05-22 1980-03-04 Varian Associates, Inc. Fast NMR acquisition processor
GB1584950A (en) * 1978-05-25 1981-02-18 Emi Ltd Imaging systems
US4297637A (en) * 1978-07-20 1981-10-27 The Regents Of The University Of California Method and apparatus for mapping lines of nuclear density within an object using nuclear magnetic resonance

Also Published As

Publication number Publication date
EP0021535A1 (de) 1981-01-07
EP0021535B1 (de) 1983-01-12
US4354157A (en) 1982-10-12
CA1111106A (en) 1981-10-20
JPS567048A (en) 1981-01-24
NL7904986A (nl) 1980-12-30

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee