IL73675A0 - Method for correcting image distortion due to gradient nonuniformity - Google Patents

Method for correcting image distortion due to gradient nonuniformity

Info

Publication number
IL73675A0
IL73675A0 IL73675A IL7367584A IL73675A0 IL 73675 A0 IL73675 A0 IL 73675A0 IL 73675 A IL73675 A IL 73675A IL 7367584 A IL7367584 A IL 7367584A IL 73675 A0 IL73675 A0 IL 73675A0
Authority
IL
Israel
Prior art keywords
image distortion
distortion due
correcting image
nonuniformity
gradient
Prior art date
Application number
IL73675A
Other languages
English (en)
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 IL73675A0 publication Critical patent/IL73675A0/xx

Links

Classifications

    • 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
    • G01R33/44—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
    • 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)
IL73675A 1983-12-23 1984-11-29 Method for correcting image distortion due to gradient nonuniformity IL73675A0 (en)

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 (1)

Publication Number Publication Date
IL73675A0 true IL73675A0 (en) 1985-02-28

Family

ID=24257827

Family Applications (1)

Application Number Title Priority Date Filing Date
IL73675A IL73675A0 (en) 1983-12-23 1984-11-29 Method for correcting image distortion due to gradient nonuniformity

Country Status (6)

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

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Also Published As

Publication number Publication date
JPS60209154A (ja) 1985-10-21
JPH0350544B2 (fr) 1991-08-02
KR850004639A (ko) 1985-07-25
FI844515L (fi) 1985-06-24
US4591789A (en) 1986-05-27
EP0146873A2 (fr) 1985-07-03
FI844515A0 (fi) 1984-11-16
EP0146873A3 (fr) 1987-04-01

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