JPH0241967B2 - - Google Patents

Info

Publication number
JPH0241967B2
JPH0241967B2 JP60116180A JP11618085A JPH0241967B2 JP H0241967 B2 JPH0241967 B2 JP H0241967B2 JP 60116180 A JP60116180 A JP 60116180A JP 11618085 A JP11618085 A JP 11618085A JP H0241967 B2 JPH0241967 B2 JP H0241967B2
Authority
JP
Japan
Prior art keywords
pulse
data
time
signal
magnetic field
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 - Lifetime
Application number
JP60116180A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61272644A (ja
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 filed Critical
Priority to JP60116180A priority Critical patent/JPS61272644A/ja
Priority to US06/864,000 priority patent/US4713616A/en
Priority to GB8612146A priority patent/GB2176012B/en
Priority to DE19863617659 priority patent/DE3617659A1/de
Publication of JPS61272644A publication Critical patent/JPS61272644A/ja
Publication of JPH0241967B2 publication Critical patent/JPH0241967B2/ja
Granted 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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (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)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP60116180A 1985-05-29 1985-05-29 核磁気共鳴撮像装置 Granted JPS61272644A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP60116180A JPS61272644A (ja) 1985-05-29 1985-05-29 核磁気共鳴撮像装置
US06/864,000 US4713616A (en) 1985-05-29 1986-05-16 Nuclear magnetic resonance imaging apparatus
GB8612146A GB2176012B (en) 1985-05-29 1986-05-19 Nuclear magnetic resonance imaging apparatus
DE19863617659 DE3617659A1 (de) 1985-05-29 1986-05-26 Nmr-abbildungsgeraet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60116180A JPS61272644A (ja) 1985-05-29 1985-05-29 核磁気共鳴撮像装置

Publications (2)

Publication Number Publication Date
JPS61272644A JPS61272644A (ja) 1986-12-02
JPH0241967B2 true JPH0241967B2 (en]) 1990-09-20

Family

ID=14680781

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60116180A Granted JPS61272644A (ja) 1985-05-29 1985-05-29 核磁気共鳴撮像装置

Country Status (4)

Country Link
US (1) US4713616A (en])
JP (1) JPS61272644A (en])
DE (1) DE3617659A1 (en])
GB (1) GB2176012B (en])

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4912412A (en) * 1987-02-27 1990-03-27 Hitachi, Ltd. MR imaging method and apparatus
US4833407A (en) * 1987-06-24 1989-05-23 Picker International, Inc. Scan time reduction using conjugate symmetry and recalled echo
US4780675A (en) * 1987-08-14 1988-10-25 Picker International, Inc. Conjugate symmetry magnetic resonance imaging
IL85259A0 (en) * 1988-01-29 1988-07-31 Elscint Ltd Motion insensitive imaging using magnetic resonance systems
JPH0614915B2 (ja) * 1988-03-03 1994-03-02 株式会社東芝 磁気共鳴イメージング装置
ATE120547T1 (de) * 1988-04-14 1995-04-15 Univ California Mr-abbildung mit hilfe asymmetrischer hf- anregungspulse und asymmetrische synthese komplexkonjugierter se-daten zur reduzierung der te- und t2-abklingzeit von nmr-spin-echo- signalen.
US4837513A (en) * 1988-04-14 1989-06-06 The Regents Of The University Of California MRI using asymmetric RF nutation pulses and asymmetric synthesis of complex conjugated SE data to reduce TE and T2 decay NMR spin echo responses
JP2650973B2 (ja) * 1988-07-29 1997-09-10 株式会社日立製作所 断層撮像装置
US5629624A (en) * 1990-06-29 1997-05-13 The Regents Of The University Of California Switched field magnetic resonance imaging
US5307015A (en) * 1990-06-29 1994-04-26 The Regents Of The University Of California NMR relaxometry using variable initial flip angle
US5168227A (en) * 1991-05-01 1992-12-01 General Electric High resolution imaging using short te and tr pulse sequences with asymmetric nmr echo acquisition
US5285157A (en) * 1991-05-03 1994-02-08 Elscint Ltd. Reduction of truncation caused artifacts
US5414674A (en) * 1993-11-12 1995-05-09 Discovery Bay Company Resonant energy analysis method and apparatus for seismic data
RU2165613C1 (ru) * 2000-06-21 2001-04-20 Пермский государственный университет Способ определения величины локального поля в кристаллах

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052753B (en) * 1979-05-23 1983-08-03 Emi Ltd Nmr system
DE2936465A1 (de) * 1979-09-10 1981-06-11 Siemens AG, 1000 Berlin und 8000 München Verfahren zur erstellung von kernresonanzbildern
US4486708A (en) * 1981-12-21 1984-12-04 Albert Macovski Selective material projection imaging system using nuclear magnetic resonance
DE3378848D1 (en) * 1982-10-06 1989-02-09 Peter Mansfield Nuclear magnetic resonance methods
US4506223A (en) * 1982-11-22 1985-03-19 General Electric Company Method for performing two-dimensional and three-dimensional chemical shift imaging
JPS59200948A (ja) * 1983-04-30 1984-11-14 Toshiba Corp 核磁気共鳴映像装置
DE3340523A1 (de) * 1983-11-09 1985-05-15 Siemens AG, 1000 Berlin und 8000 München Kernspin-tomographiegeraet
US4573014A (en) * 1983-11-09 1986-02-25 Duke University NMR Imaging method and apparatus
US4583044A (en) * 1984-01-09 1986-04-15 University Of Utah NMR imaging method

Also Published As

Publication number Publication date
GB8612146D0 (en) 1986-06-25
DE3617659A1 (de) 1986-12-04
JPS61272644A (ja) 1986-12-02
GB2176012A (en) 1986-12-10
GB2176012B (en) 1989-09-06
US4713616A (en) 1987-12-15

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term