FI844515L - Foerfarande foer korrigering av bildfoervraengning foerorsakad av gradientoenhetlighet. - Google Patents

Foerfarande foer korrigering av bildfoervraengning foerorsakad av gradientoenhetlighet.

Info

Publication number
FI844515L
FI844515L FI844515A FI844515A FI844515L FI 844515 L FI844515 L FI 844515L FI 844515 A FI844515 A FI 844515A FI 844515 A FI844515 A FI 844515A FI 844515 L FI844515 L FI 844515L
Authority
FI
Finland
Prior art keywords
korrigering
gradientoenhetlighet
foerorsakad
bildfoervraengning
foerfarande foer
Prior art date
Application number
FI844515A
Other languages
English (en)
Finnish (fi)
Other versions
FI844515A0 (fi
Inventor
Gary Harold Glover
Norbert Joseph Pelc
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of FI844515A0 publication Critical patent/FI844515A0/fi
Publication of FI844515L publication Critical patent/FI844515L/fi

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
    • G01R33/56518—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
    • G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Image Processing (AREA)
FI844515A 1983-12-23 1984-11-16 Foerfarande foer korrigering av bildfoervraengning foerorsakad av gradientoenhetlighet. FI844515L (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/565,256 US4591789A (en) 1983-12-23 1983-12-23 Method for correcting image distortion due to gradient nonuniformity

Publications (2)

Publication Number Publication Date
FI844515A0 FI844515A0 (fi) 1984-11-16
FI844515L true FI844515L (fi) 1985-06-24

Family

ID=24257827

Family Applications (1)

Application Number Title Priority Date Filing Date
FI844515A FI844515L (fi) 1983-12-23 1984-11-16 Foerfarande foer korrigering av bildfoervraengning foerorsakad av gradientoenhetlighet.

Country Status (6)

Country Link
US (1) US4591789A (ja)
EP (1) EP0146873A3 (ja)
JP (1) JPS60209154A (ja)
KR (1) KR850004639A (ja)
FI (1) FI844515L (ja)
IL (1) IL73675A0 (ja)

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KR101967244B1 (ko) 2012-12-05 2019-04-09 삼성전자주식회사 자기 공명 영상 방법 및 장치
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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

Also Published As

Publication number Publication date
EP0146873A3 (en) 1987-04-01
US4591789A (en) 1986-05-27
FI844515A0 (fi) 1984-11-16
EP0146873A2 (en) 1985-07-03
IL73675A0 (en) 1985-02-28
KR850004639A (ko) 1985-07-25
JPH0350544B2 (ja) 1991-08-02
JPS60209154A (ja) 1985-10-21

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Legal Events

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Owner name: GENERAL ELECTRIC COMPANY