DE3686907D1 - Umkehrung der magnetisierung durch adiabatisch schnellen und nichtlinearen durchgang bei der magnetischen kernresonanz. - Google Patents

Umkehrung der magnetisierung durch adiabatisch schnellen und nichtlinearen durchgang bei der magnetischen kernresonanz.

Info

Publication number
DE3686907D1
DE3686907D1 DE8686107989T DE3686907T DE3686907D1 DE 3686907 D1 DE3686907 D1 DE 3686907D1 DE 8686107989 T DE8686107989 T DE 8686107989T DE 3686907 T DE3686907 T DE 3686907T DE 3686907 D1 DE3686907 D1 DE 3686907D1
Authority
DE
Germany
Prior art keywords
adiabatically
fast
magnetic core
linear passage
reverse magnetization
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 - Fee Related
Application number
DE8686107989T
Other languages
English (en)
Other versions
DE3686907T2 (de
Inventor
Christopher Judson Hardy
William Alan Edelstein
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of DE3686907D1 publication Critical patent/DE3686907D1/de
Application granted granted Critical
Publication of DE3686907T2 publication Critical patent/DE3686907T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • 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]
    • G01R33/446—Multifrequency selective RF pulses, e.g. multinuclear acquisition mode
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
    • G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
    • 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3607—RF waveform generators, e.g. frequency generators, amplitude-, frequency- or phase modulators or shifters, pulse programmers, digital to analog converters for the RF signal, means for filtering or attenuating of the RF signal
    • 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
DE8686107989T 1985-06-18 1986-06-11 Umkehrung der magnetisierung durch adiabatisch schnellen und nichtlinearen durchgang bei der magnetischen kernresonanz. Expired - Fee Related DE3686907T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/746,146 US4695799A (en) 1985-06-18 1985-06-18 NMR magnetization inversion by non-linear adiabatic fast passage

Publications (2)

Publication Number Publication Date
DE3686907D1 true DE3686907D1 (de) 1992-11-12
DE3686907T2 DE3686907T2 (de) 1993-05-13

Family

ID=24999656

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686107989T Expired - Fee Related DE3686907T2 (de) 1985-06-18 1986-06-11 Umkehrung der magnetisierung durch adiabatisch schnellen und nichtlinearen durchgang bei der magnetischen kernresonanz.

Country Status (7)

Country Link
US (1) US4695799A (de)
EP (1) EP0206129B1 (de)
JP (1) JPS6241650A (de)
KR (1) KR920005506B1 (de)
DE (1) DE3686907T2 (de)
FI (1) FI861470A (de)
IL (1) IL78670A (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8528551D0 (en) * 1985-11-20 1985-12-24 Oxford Research Systems Ltd Performing n m r experiment
US4988947A (en) * 1987-03-27 1991-01-29 Regents Of The University Of Minnesota Amplitude and frequency/phase modulated pulses to achieve plane rotations of nuclear spin magnetization vectors with inhomogeneous B1
US4914392A (en) * 1987-03-27 1990-04-03 Reagents Of The University Of Minnesota Amplitude and frequency/phase modulated pulses to achieve plane rotations of nuclear spin magnetization vectors with inhomogeneous B1
JPH01166748A (ja) * 1987-12-23 1989-06-30 Hitachi Ltd 高周波磁場の波形の準最適設定方法
DE3808281A1 (de) * 1988-03-12 1989-09-21 Philips Patentverwaltung Verfahren zur bestimmung der kernmagnetisierungsverteilung und anordnung zur durchfuehrung des verfahrens
EP0420915A4 (en) * 1988-06-21 1991-10-09 Regents Of The University Of Minnesota Spectroscopy methods
US4947119A (en) * 1988-06-21 1990-08-07 University Of Minnesota Magnetic resonance imaging and spectroscopy methods
EP0370138B1 (de) * 1988-11-25 1994-10-05 Koninklijke Philips Electronics N.V. Kernspinresonanzverfahren und -vorrichtung zur Unterdrückung eines Signals einer chemischen Verschiebungskomponente aus einem längsrelaxationszeitgewichteten Kernspintomogramm
DE68914440T2 (de) * 1989-04-22 1994-07-28 Spectrospin Ag Verfahren zur Anregung der transversalen Magnetisierung bei magnetischen Kernresonanz-Impuls-Experimenten.
US5019784A (en) * 1989-08-11 1991-05-28 Regents Of The University Of Minnesota Time symmetric pulse to uniformly rotate magnetization vectors by an arbitrary angle in the presence of large B1 inhomogeneities and resonance offsets
GB9006320D0 (en) * 1990-03-21 1990-05-16 Gen Electric Co Plc Nuclear magnetic resonance apparatus
US5412322A (en) * 1993-06-24 1995-05-02 Wollin Ventures, Inc. Apparatus and method for spatially ordered phase encoding and for determining complex permittivity in magnetic resonance by using superimposed time-varying electric fields
US6448769B1 (en) 1996-09-10 2002-09-10 General Electric Company Adiabatic pulse design
IL119233A0 (en) * 1996-09-10 1996-12-05 Elscint Ltd Frequency selective pulse
US6441613B1 (en) * 1996-09-10 2002-08-27 Ge Medical Systems Frequency selective pulse
DE20109058U1 (de) * 2001-05-31 2002-10-10 Deltamed Gmbh Vorrichtung zur Behandlung mit magnetischen Feldern
US6958606B2 (en) * 2003-12-03 2005-10-25 Ge Medical Systems Global Technology Co., Llc NMR excitation method
US7787930B2 (en) * 2005-04-25 2010-08-31 The United States Of America As Represented By The Department Of Health And Human Services Adiabatic T2 preparation sequence for magnetic resonance imaging with reduced B1 sensitivity
WO2010114608A1 (en) 2009-04-02 2010-10-07 Regents Of The University Of Minnesota Mp-swift with adiabatic inversion preparation
US9257206B2 (en) 2011-12-02 2016-02-09 The Charles Stark Draper Laboratory, Inc. Adiabatic rapid passage atomic beamsplitter using frequency-swept coherent laser beam pairs
US10585204B2 (en) * 2012-01-27 2020-03-10 Vista Clara Inc. Relaxation time estimation in surface NMR
EA201691157A1 (ru) * 2013-12-04 2016-09-30 Эксонмобил Апстрим Рисерч Компани Способ и система для обнаружения материала в области земли
US9594144B2 (en) 2014-04-23 2017-03-14 General Electric Company Low-noise magnetic resonance imaging using low harmonic pulse sequences

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826972A (en) * 1973-08-17 1974-07-30 Univ Leland Stanford Junior Method and apparatus for detecting nuclear magnetic resonance
DE2951537A1 (de) * 1979-12-20 1981-07-02 Siemens AG, 1000 Berlin und 8000 München Zeugmatografieverfahren
US4565968A (en) * 1983-02-16 1986-01-21 Albert Macovski Blood vessel projection imaging system using nuclear magnetic resonance
JPS59157551A (ja) * 1983-02-25 1984-09-06 Asahi Chem Ind Co Ltd 核スピン反転装置
US4577152A (en) * 1983-04-11 1986-03-18 Albert Macovski Selective material projection imaging system using nuclear magnetic resonance

Also Published As

Publication number Publication date
JPS6241650A (ja) 1987-02-23
EP0206129A3 (en) 1989-04-19
IL78670A0 (en) 1986-08-31
FI861470A0 (fi) 1986-04-07
US4695799A (en) 1987-09-22
KR920005506B1 (ko) 1992-07-06
EP0206129B1 (de) 1992-10-07
KR870000587A (ko) 1987-02-19
JPH0351171B2 (de) 1991-08-06
DE3686907T2 (de) 1993-05-13
IL78670A (en) 1989-10-31
EP0206129A2 (de) 1986-12-30
FI861470A (fi) 1986-12-19

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Legal Events

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8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee