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GB2079946B - Nmr imaging method - Google Patents

Nmr imaging method

Info

Publication number
GB2079946B
GB2079946B GB8107962A GB8107962A GB2079946B GB 2079946 B GB2079946 B GB 2079946B GB 8107962 A GB8107962 A GB 8107962A GB 8107962 A GB8107962 A GB 8107962A GB 2079946 B GB2079946 B GB 2079946B
Authority
GB
United Kingdom
Prior art keywords
imaging method
nmr imaging
nmr
imaging
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
Application number
GB8107962A
Other versions
GB2079946A (en
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.)
National Research Development Corp UK
National Research Development Corp of India
Original Assignee
National Research Development Corp UK
National Research Development Corp of India
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 National Research Development Corp UK, National Research Development Corp of India filed Critical National Research Development Corp UK
Priority to GB8107962A priority Critical patent/GB2079946B/en
Publication of GB2079946A publication Critical patent/GB2079946A/en
Application granted granted Critical
Publication of GB2079946B publication Critical patent/GB2079946B/en
Expired 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
    • G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/482—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a Cartesian trajectory
    • 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
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • 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
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5616—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using gradient refocusing, e.g. EPI

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General 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)
  • Magnetic Resonance Imaging Apparatus (AREA)
GB8107962A 1980-03-14 1981-03-13 Nmr imaging method Expired GB2079946B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8107962A GB2079946B (en) 1980-03-14 1981-03-13 Nmr imaging method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8008773 1980-03-14
GB8107962A GB2079946B (en) 1980-03-14 1981-03-13 Nmr imaging method

Publications (2)

Publication Number Publication Date
GB2079946A GB2079946A (en) 1982-01-27
GB2079946B true GB2079946B (en) 1984-11-07

Family

ID=26274832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8107962A Expired GB2079946B (en) 1980-03-14 1981-03-13 Nmr imaging method

Country Status (1)

Country Link
GB (1) GB2079946B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526968B1 (en) * 1982-05-14 1986-02-28 Thomson Csf METHOD FOR TOMOGRAPHY OF AN OBJECT BY NUCLEAR MAGNETIC RESONANCE
US4563647A (en) * 1982-06-09 1986-01-07 Picker International Limited Nuclear magnetic resonance methods and apparatus
US4607223A (en) * 1982-08-13 1986-08-19 National Research Development Corporation Nuclear magnetic resonance imaging method
JPS59190643A (en) * 1983-04-14 1984-10-29 Hitachi Ltd Inspecting apparatus utilizing nuclear magnetic resonance
JPS6031069A (en) * 1983-08-01 1985-02-16 Hitachi Ltd Examination apparatus using nuclear magnetic resonance
GB8320653D0 (en) * 1983-08-01 1983-09-01 Eastwood L M Producing images by nmr techniques
JPS6191550A (en) * 1984-10-12 1986-05-09 Mitsubishi Electric Corp Nuclear magnetic resonance imaging method
FR2574551B1 (en) * 1984-12-12 1986-12-26 Commissariat Energie Atomique METHOD OF GENERATING AND PROCESSING SIGNALS FOR OBTAINING BY NUCLEAR MAGNETIC RESONANCE AN IMAGE FREE OF DISTORTIONS FROM AN INHOMOGENEOUS POLARIZATION FIELD
JPH07108288B2 (en) * 1985-02-15 1995-11-22 株式会社日立製作所 NMR imaging method
JPS6289176A (en) * 1985-10-15 1987-04-23 Mitsubishi Electric Corp Interpolation enlarging method for nuclear magnetic resonance imaging
US4868502A (en) * 1987-02-05 1989-09-19 Mitsubishi Denki Kabushiki Kaisha Magnetic resonance imaging method and apparatus therefor

Also Published As

Publication number Publication date
GB2079946A (en) 1982-01-27

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20010312