IL123542A - Apparatus and methods of obtaining phase information in magnetic resonance imaging - Google Patents

Apparatus and methods of obtaining phase information in magnetic resonance imaging

Info

Publication number
IL123542A
IL123542A IL12354296A IL12354296A IL123542A IL 123542 A IL123542 A IL 123542A IL 12354296 A IL12354296 A IL 12354296A IL 12354296 A IL12354296 A IL 12354296A IL 123542 A IL123542 A IL 123542A
Authority
IL
Israel
Prior art keywords
data set
phase
complex
image
magnetic resonance
Prior art date
Application number
IL12354296A
Other languages
English (en)
Other versions
IL123542A0 (en
Original Assignee
British Tech Group
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
Priority claimed from GBGB9518009.7A external-priority patent/GB9518009D0/en
Application filed by British Tech Group filed Critical British Tech Group
Publication of IL123542A0 publication Critical patent/IL123542A0/xx
Publication of IL123542A publication Critical patent/IL123542A/en

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
    • 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
    • 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
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
IL12354296A 1995-09-04 1996-09-04 Apparatus and methods of obtaining phase information in magnetic resonance imaging IL123542A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9518009.7A GB9518009D0 (en) 1995-09-04 1995-09-04 Methods of obtaining phase information in magnetic resonance imaging and a related apparatus
GBGB9600296.9A GB9600296D0 (en) 1995-09-04 1996-01-08 Methods of obtaining phase information in magnetic resonance imaging and related apparatus
PCT/GB1996/002172 WO1997009632A1 (fr) 1995-09-04 1996-09-04 Procedes de realisation d'un contraste de phase en imagerie par resonance magnetique et appareil associe

Publications (2)

Publication Number Publication Date
IL123542A0 IL123542A0 (en) 1998-10-30
IL123542A true IL123542A (en) 2001-07-24

Family

ID=26307687

Family Applications (1)

Application Number Title Priority Date Filing Date
IL12354296A IL123542A (en) 1995-09-04 1996-09-04 Apparatus and methods of obtaining phase information in magnetic resonance imaging

Country Status (4)

Country Link
EP (1) EP0848827A1 (fr)
GB (1) GB9600296D0 (fr)
IL (1) IL123542A (fr)
WO (1) WO1997009632A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100409022C (zh) * 2003-12-29 2008-08-06 中国科学院电工研究所 一种阻抗成像方法及装置
US7898252B2 (en) 2005-03-10 2011-03-01 University Of Queensland Phased array coil for MRI

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661775A (en) * 1985-07-15 1987-04-28 Technicare Corporation Chemical shift imaging with field inhomogeneity correction
US4912412A (en) * 1987-02-27 1990-03-27 Hitachi, Ltd. MR imaging method and apparatus
US5115812A (en) * 1988-11-30 1992-05-26 Hitachi, Ltd. Magnetic resonance imaging method for moving object
JP3403751B2 (ja) * 1992-03-31 2003-05-06 株式会社東芝 磁気共鳴映像装置

Also Published As

Publication number Publication date
GB9600296D0 (en) 1996-03-13
IL123542A0 (en) 1998-10-30
WO1997009632A1 (fr) 1997-03-13
EP0848827A1 (fr) 1998-06-24

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Legal Events

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FF Patent granted
MM9K Patent not in force due to non-payment of renewal fees