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DE3868730D1 - Verfahren zur artefaktebeseitigung im nmr-bildexperiment. - Google Patents

Verfahren zur artefaktebeseitigung im nmr-bildexperiment.

Info

Publication number
DE3868730D1
DE3868730D1 DE8888401719T DE3868730T DE3868730D1 DE 3868730 D1 DE3868730 D1 DE 3868730D1 DE 8888401719 T DE8888401719 T DE 8888401719T DE 3868730 T DE3868730 T DE 3868730T DE 3868730 D1 DE3868730 D1 DE 3868730D1
Authority
DE
Germany
Prior art keywords
nmr image
eliminating artifacts
image experiment
experiment
artifacts
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
DE8888401719T
Other languages
English (en)
Inventor
Roux Patrick Le
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.)
General Electric CGR SA
Original Assignee
General Electric CGR SA
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 General Electric CGR SA filed Critical General Electric CGR SA
Application granted granted Critical
Publication of DE3868730D1 publication Critical patent/DE3868730D1/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
    • G01R33/56509—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to motion, displacement or flow, e.g. gradient moment nulling

Landscapes

  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
DE8888401719T 1987-07-10 1988-07-01 Verfahren zur artefaktebeseitigung im nmr-bildexperiment. Expired - Fee Related DE3868730D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8709813A FR2617999B1 (fr) 1987-07-10 1987-07-10 Procede d'elimination d'artefacts dans une experimentation d'imagerie par rmn

Publications (1)

Publication Number Publication Date
DE3868730D1 true DE3868730D1 (de) 1992-04-09

Family

ID=9353061

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888401719T Expired - Fee Related DE3868730D1 (de) 1987-07-10 1988-07-01 Verfahren zur artefaktebeseitigung im nmr-bildexperiment.

Country Status (5)

Country Link
US (1) US4926124A (de)
EP (1) EP0298850B1 (de)
JP (1) JP2696767B2 (de)
DE (1) DE3868730D1 (de)
FR (1) FR2617999B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03224538A (ja) * 1990-01-31 1991-10-03 Hitachi Medical Corp 一次の静磁場不均一を補正して計測する過程を備えたｍｒｉ装置
US5251128A (en) * 1990-11-19 1993-10-05 General Electric Company Motion artifact reduction in projection imaging
GB9025344D0 (en) * 1990-11-21 1991-01-02 Marconi Gec Ltd Nuclear magnetic resonance methods and apparatus
JP2805405B2 (ja) * 1991-09-18 1998-09-30 株式会社日立メディコ 磁気共鳴イメージング装置
US5323780A (en) * 1992-08-07 1994-06-28 University Of Florida Research Foundation, Inc. Artifact-free imaging contrast agent
US5602891A (en) * 1995-11-13 1997-02-11 Beth Israel Imaging apparatus and method with compensation for object motion
US20130243085A1 (en) * 2012-03-15 2013-09-19 Samsung Electronics Co., Ltd. Method of multi-view video coding and decoding based on local illumination and contrast compensation of reference frames without extra bitrate overhead

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2056078B (en) * 1979-08-03 1984-02-29 Emi Ltd Nuclear magnetic resonance systems
DE3378655D1 (en) * 1982-07-28 1989-01-12 Picker Int Ltd Nuclear magnetic resonance method and apparatus
DE3570135D1 (en) * 1984-08-01 1989-06-15 Siemens Ag Apparatus for producing images of an object under examination
US4644280A (en) * 1984-09-20 1987-02-17 Elscint Ltd. Magnetic resonance image zooming
US4724386A (en) * 1985-09-30 1988-02-09 Picker International, Inc. Centrally ordered phase encoding
US4663591A (en) * 1985-08-16 1987-05-05 General Electric Company Method for reducing image artifacts due to periodic signal variations in NMR imaging
US4710717A (en) * 1986-12-29 1987-12-01 General Electric Company Method for fast scan cine NMR imaging

Also Published As

Publication number Publication date
FR2617999A1 (fr) 1989-01-13
EP0298850B1 (de) 1992-03-04
US4926124A (en) 1990-05-15
FR2617999B1 (fr) 1989-11-10
JP2696767B2 (ja) 1998-01-14
JPS6427542A (en) 1989-01-30
EP0298850A1 (de) 1989-01-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee