GB2173003B - A method of nuclear magnetic resonance imaging - Google Patents

A method of nuclear magnetic resonance imaging

Info

Publication number
GB2173003B
GB2173003B GB8603238A GB8603238A GB2173003B GB 2173003 B GB2173003 B GB 2173003B GB 8603238 A GB8603238 A GB 8603238A GB 8603238 A GB8603238 A GB 8603238A GB 2173003 B GB2173003 B GB 2173003B
Authority
GB
United Kingdom
Prior art keywords
magnetic resonance
nuclear magnetic
resonance imaging
imaging
nuclear
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
GB8603238A
Other versions
GB8603238D0 (en
GB2173003A (en
Inventor
Koichi Sano
Shimbu Yamagata
Tetsuo Yokayama
Hideaki Koizumi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB8603238D0 publication Critical patent/GB8603238D0/en
Publication of GB2173003A publication Critical patent/GB2173003A/en
Application granted granted Critical
Publication of GB2173003B publication Critical patent/GB2173003B/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
    • G01R33/54—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
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/56308—Characterization of motion or flow; Dynamic imaging
    • G01R33/56316—Characterization of motion or flow; Dynamic imaging involving phase contrast techniques
    • 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
    • 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
    • G01R33/5659—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the RF magnetic field, e.g. spatial inhomogeneities of the RF magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Processing Or Creating Images (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
GB8603238A 1985-02-15 1986-02-10 A method of nuclear magnetic resonance imaging Expired GB2173003B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60026241A JPH07108288B2 (en) 1985-02-15 1985-02-15 NMR imaging method

Publications (3)

Publication Number Publication Date
GB8603238D0 GB8603238D0 (en) 1986-03-19
GB2173003A GB2173003A (en) 1986-10-01
GB2173003B true GB2173003B (en) 1989-11-22

Family

ID=12187803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8603238A Expired GB2173003B (en) 1985-02-15 1986-02-10 A method of nuclear magnetic resonance imaging

Country Status (4)

Country Link
US (1) US4870362A (en)
JP (1) JPH07108288B2 (en)
DE (1) DE3604514A1 (en)
GB (1) GB2173003B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710717A (en) * 1986-12-29 1987-12-01 General Electric Company Method for fast scan cine NMR imaging
NL8701642A (en) * 1987-07-13 1989-02-01 Philips Nv METHOD AND APPARATUS FOR PERFORMING A PHASE CORRECTION IN MR ANGIOGRAPHY
IL86231A (en) * 1988-04-29 1991-07-18 Elscint Ltd Correction for eddy current caused phase degradation
JPH02159252A (en) * 1988-12-14 1990-06-19 Hitachi Ltd Image reconstruction method in magnetic resonance imaging equipment
US10089729B2 (en) * 2014-04-23 2018-10-02 Toshiba Medical Systems Corporation Merging magnetic resonance (MR) magnitude and phase images

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079946A (en) * 1980-03-14 1982-01-27 Nat Res Dev NMR Imaging Method
GB2127155A (en) * 1982-09-17 1984-04-04 Picker Int Ltd Flow determination by nuclear magnetic resonance
US4516075A (en) * 1983-01-04 1985-05-07 Wisconsin Alumni Research Foundation NMR scanner with motion zeugmatography
EP0145932A2 (en) * 1983-11-15 1985-06-26 General Electric Company A method for visualization of in-plane fluid flow by proton NMR imaging
GB2150302A (en) * 1983-11-25 1985-06-26 Picker Int Ltd Nuclear magnetic resonance imaging
EP0170070A1 (en) * 1984-07-02 1986-02-05 Atlas Fahrzeugtechnik GmbH Method and apparatus for generating an ignition pulse for an internal-combustion engine
GB2164155A (en) * 1984-08-10 1986-03-12 Gen Hospital Corp Flow imaging by means of nuclear magnetic resonance
EP0182481A2 (en) * 1984-10-22 1986-05-28 The Board Of Trustees Of The Leland Stanford Junior University A method of, and apparatus for, determining fluid movement using nuclear magnetic resonance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409550A (en) * 1981-05-15 1983-10-11 President And Fellows Of Harvard College NMR Sodium images
US4625169A (en) * 1984-08-10 1986-11-25 The General Hospital Corporation Flow imaging by means of nuclear magnetic resonance
US4609872A (en) * 1984-08-10 1986-09-02 General Electric Company NMR multiple-echo phase-contrast blood flow imaging

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079946A (en) * 1980-03-14 1982-01-27 Nat Res Dev NMR Imaging Method
GB2127155A (en) * 1982-09-17 1984-04-04 Picker Int Ltd Flow determination by nuclear magnetic resonance
US4516075A (en) * 1983-01-04 1985-05-07 Wisconsin Alumni Research Foundation NMR scanner with motion zeugmatography
EP0145932A2 (en) * 1983-11-15 1985-06-26 General Electric Company A method for visualization of in-plane fluid flow by proton NMR imaging
GB2150302A (en) * 1983-11-25 1985-06-26 Picker Int Ltd Nuclear magnetic resonance imaging
EP0170070A1 (en) * 1984-07-02 1986-02-05 Atlas Fahrzeugtechnik GmbH Method and apparatus for generating an ignition pulse for an internal-combustion engine
GB2164155A (en) * 1984-08-10 1986-03-12 Gen Hospital Corp Flow imaging by means of nuclear magnetic resonance
EP0182481A2 (en) * 1984-10-22 1986-05-28 The Board Of Trustees Of The Leland Stanford Junior University A method of, and apparatus for, determining fluid movement using nuclear magnetic resonance

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO8701201 A1 WO8701200 A1 *

Also Published As

Publication number Publication date
JPH07108288B2 (en) 1995-11-22
GB8603238D0 (en) 1986-03-19
US4870362A (en) 1989-09-26
DE3604514C2 (en) 1991-02-28
JPS61187850A (en) 1986-08-21
GB2173003A (en) 1986-10-01
DE3604514A1 (en) 1986-08-21

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990210