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ATE147875T1 - Methode zur gewinnung von hochauflosenden magnetischen resonanzbildern mit kurzer messzeit - Google Patents

Methode zur gewinnung von hochauflosenden magnetischen resonanzbildern mit kurzer messzeit

Info

Publication number
ATE147875T1
ATE147875T1 AT94914249T AT94914249T ATE147875T1 AT E147875 T1 ATE147875 T1 AT E147875T1 AT 94914249 T AT94914249 T AT 94914249T AT 94914249 T AT94914249 T AT 94914249T AT E147875 T1 ATE147875 T1 AT E147875T1
Authority
AT
Austria
Prior art keywords
magnetic resonance
pct
measurement time
resolution magnetic
resonance images
Prior art date
Application number
AT94914249T
Other languages
English (en)
Inventor
Piero Barone
Giovanni Sebastiani
Original Assignee
Consiglio Nazionale Ricerche
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 Consiglio Nazionale Ricerche filed Critical Consiglio Nazionale Ricerche
Application granted granted Critical
Publication of ATE147875T1 publication Critical patent/ATE147875T1/de

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
    • G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
    • 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
    • G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • 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
    • G01R33/56545—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by finite or discrete sampling, e.g. Gibbs ringing, truncation artefacts, phase aliasing artefacts

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Image Processing (AREA)
  • Measuring Magnetic Variables (AREA)
  • Image Analysis (AREA)
AT94914249T 1992-11-02 1992-11-02 Methode zur gewinnung von hochauflosenden magnetischen resonanzbildern mit kurzer messzeit ATE147875T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002147003A CA2147003A1 (en) 1992-11-02 1992-11-02 Method for producing high-resolution magnetic resonance images with a short measurement time
PCT/IT1992/000076 WO1994010550A2 (en) 1992-11-02 1992-11-02 A system for forming high-resolution magnetic resonance images having a reduced measurement time

Publications (1)

Publication Number Publication Date
ATE147875T1 true ATE147875T1 (de) 1997-02-15

Family

ID=25677904

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94914249T ATE147875T1 (de) 1992-11-02 1992-11-02 Methode zur gewinnung von hochauflosenden magnetischen resonanzbildern mit kurzer messzeit

Country Status (11)

Country Link
US (1) US5646529A (de)
EP (1) EP0670068B1 (de)
JP (1) JPH08501014A (de)
AT (1) ATE147875T1 (de)
AU (1) AU2370092A (de)
CA (1) CA2147003A1 (de)
DE (1) DE69216866T2 (de)
DK (1) DK0670068T3 (de)
ES (1) ES2099608T3 (de)
NO (1) NO951627L (de)
WO (1) WO1994010550A2 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5086275A (en) * 1990-08-20 1992-02-04 General Electric Company Time domain filtering for nmr phased array imaging
US5157330A (en) * 1991-02-22 1992-10-20 The Regents Of The University Of California Method and apparatus for compensating magnetic field inhomogeneity artifact in MRI
US5285157A (en) * 1991-05-03 1994-02-08 Elscint Ltd. Reduction of truncation caused artifacts
JP3114074B2 (ja) * 1991-06-21 2000-12-04 株式会社日立製作所 医療用診断装置

Also Published As

Publication number Publication date
DE69216866T2 (de) 1997-06-05
WO1994010550A2 (en) 1994-05-11
DE69216866D1 (de) 1997-02-27
AU2370092A (en) 1994-05-24
ES2099608T3 (es) 1997-05-16
EP0670068A1 (de) 1995-09-06
DK0670068T3 (da) 1997-07-14
CA2147003A1 (en) 1994-05-11
NO951627D0 (no) 1995-04-28
WO1994010550A3 (en) 1994-06-23
US5646529A (en) 1997-07-08
NO951627L (no) 1995-07-03
JPH08501014A (ja) 1996-02-06
EP0670068B1 (de) 1997-01-15

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