IL71471A0 - Method of accurate and rapid nmr imaging of computed t1 and spin density - Google Patents

Method of accurate and rapid nmr imaging of computed t1 and spin density

Info

Publication number
IL71471A0
IL71471A0 IL71471A IL7147184A IL71471A0 IL 71471 A0 IL71471 A0 IL 71471A0 IL 71471 A IL71471 A IL 71471A IL 7147184 A IL7147184 A IL 7147184A IL 71471 A0 IL71471 A0 IL 71471A0
Authority
IL
Israel
Prior art keywords
computed
accurate
spin density
nmr imaging
rapid nmr
Prior art date
Application number
IL71471A
Other languages
English (en)
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IL71471A0 publication Critical patent/IL71471A0/xx

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
    • G01R33/561—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
    • G01R33/50—NMR imaging systems based on the determination of relaxation times, e.g. T1 measurement by IR sequences; T2 measurement by multiple-echo sequences

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)
IL71471A 1983-06-03 1984-04-09 Method of accurate and rapid nmr imaging of computed t1 and spin density IL71471A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/500,665 US4549139A (en) 1983-06-03 1983-06-03 Method of accurate and rapid NMR imaging of computed T1 and spin density

Publications (1)

Publication Number Publication Date
IL71471A0 true IL71471A0 (en) 1984-07-31

Family

ID=23990413

Family Applications (1)

Application Number Title Priority Date Filing Date
IL71471A IL71471A0 (en) 1983-06-03 1984-04-09 Method of accurate and rapid nmr imaging of computed t1 and spin density

Country Status (5)

Country Link
US (1) US4549139A (xx)
EP (1) EP0128424A3 (xx)
JP (1) JPS6047946A (xx)
FI (1) FI841446A (xx)
IL (1) IL71471A0 (xx)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024463A (ja) * 1983-07-20 1985-02-07 Toshiba Corp 核磁気共鳴映像法
GB2148013B (en) * 1983-10-12 1988-02-03 Yokogawa Electric Corp Nuclear magnetic resonance imaging
US4612504A (en) * 1984-11-21 1986-09-16 General Electric Company Method for removing the effects of baseline error components in NMR imaging applications
JPH0738849B2 (ja) * 1984-12-21 1995-05-01 株式会社日立メディコ Ｎｍｒイメ−ジング装置
US4665365A (en) * 1985-01-07 1987-05-12 General Electric Company Method for reversing residual transverse magnetization due to phase-encoding magnetic field gradients
DE3514530A1 (de) * 1985-04-22 1986-10-23 Siemens AG, 1000 Berlin und 8000 München Kernspinresonanzgeraet
US4641095A (en) * 1985-05-15 1987-02-03 Duke University Medical Center Determination of T1 relaxation times used in automated nuclear magnetic resonance image synthesis
US4695800A (en) * 1985-06-06 1987-09-22 Technicare Corporation Non harmonic NMR spin echo imaging
US4728890A (en) * 1985-08-16 1988-03-01 Picker International, Inc. Motion artifact suppression technique of magnetic resonance imaging
JPH0318533Y2 (xx) * 1985-12-28 1991-04-18
EP0303604B1 (en) * 1986-04-24 1994-07-20 University Of Queensland Volume selected nmr spectroscopy
FR2598509B1 (fr) * 1986-05-06 1989-03-31 Thomson Cgr Procede de calibration de l'amplitude de l'excitation radiofrequence d'un appareil d'imagerie par resonance magnetique nucleaire
US4734646A (en) * 1986-09-16 1988-03-29 Fonar Corporation Method for obtaining T1-weighted and T2-weighted NMR images for a plurality of selected planes in the course of a single scan
JPS6384540A (ja) * 1986-09-30 1988-04-15 横河メディカルシステム株式会社 核磁気共鳴断層撮影装置のｒｆパルス調整装置
NL8703127A (nl) * 1987-12-24 1989-07-17 Philips Nv Werkwijze en inrichting voor het genereren van vervlochten multiple-slice en multiple-echo pulssequenties voor mri.
US4851778A (en) * 1988-12-15 1989-07-25 The Regents Of The University Of California Enhanced S/N MRI for short TR nutation sequences
US5064638A (en) * 1989-08-11 1991-11-12 Brigham & Women's Hospital Simultaneous multinuclear magnetic resonance imaging and spectroscopy
JP2957237B2 (ja) * 1990-06-22 1999-10-04 株式会社東芝 磁気共鳴イメージング装置
JPH0763460B2 (ja) * 1992-02-28 1995-07-12 株式会社日立メディコ 磁気共鳴イメージング装置
DE19923587B4 (de) * 1999-05-22 2004-08-05 Forschungszentrum Jülich GmbH Verfahren zumr Auswertung von Daten aus Messungen von kernmagnetischer Resonanz
CA2341812A1 (en) * 2000-03-24 2001-09-24 National Research Council Of Canada Magnetic resonance spectroscopic imaging with a variable repetition time in conjunction with a variable data acquistion time
US6650114B2 (en) * 2001-06-28 2003-11-18 Baker Hughes Incorporated NMR data acquisition with multiple interecho spacing
DE102004019394B4 (de) * 2004-04-19 2008-04-03 Forschungszentrum Jülich GmbH Bildgebungsverfahren sowie Kernspintomograph zur Erfassung der longitudinalen Spin-Gitter Relaxationszeit
JP4494937B2 (ja) * 2004-11-08 2010-06-30 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｍｒｉ装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1584950A (en) * 1978-05-25 1981-02-18 Emi Ltd Imaging systems
JPH0135652B2 (xx) * 1980-03-14 1989-07-26 Nat Res Dev
US4475084A (en) * 1981-01-15 1984-10-02 Picker International Limited Nuclear magnetic resonance detector
DE3135335A1 (de) * 1981-09-07 1983-08-18 Siemens AG, 1000 Berlin und 8000 München Kernspin-tomographie-verfahren
US4471306A (en) * 1982-02-03 1984-09-11 General Electric Company Method of NMR imaging which overcomes T2 * effects in an inhomogeneous static magnetic field
US4484138A (en) * 1982-07-01 1984-11-20 General Electric Company Method of eliminating effects of spurious free induction decay NMR signal caused by imperfect 180 degrees RF pulses
US4443760A (en) * 1982-07-01 1984-04-17 General Electric Company Use of phase alternated RF pulses to eliminate effects of spurious free induction decay caused by imperfect 180 degree RF pulses in NMR imaging

Also Published As

Publication number Publication date
EP0128424A3 (en) 1986-07-16
JPS6047946A (ja) 1985-03-15
US4549139A (en) 1985-10-22
EP0128424A2 (en) 1984-12-19
FI841446A0 (fi) 1984-04-11
FI841446A (fi) 1984-12-04

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