IL98437A - Rf power calibration for an nmr scanner - Google Patents

Rf power calibration for an nmr scanner

Info

Publication number
IL98437A
IL98437A IL98437A IL9843791A IL98437A IL 98437 A IL98437 A IL 98437A IL 98437 A IL98437 A IL 98437A IL 9843791 A IL9843791 A IL 9843791A IL 98437 A IL98437 A IL 98437A
Authority
IL
Israel
Prior art keywords
power calibration
nmr scanner
nmr
scanner
calibration
Prior art date
Application number
IL98437A
Other languages
English (en)
Other versions
IL98437A0 (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 IL98437A0 publication Critical patent/IL98437A0/xx
Publication of IL98437A publication Critical patent/IL98437A/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
    • G01R33/58—Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
    • G01R33/583—Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
IL98437A 1990-06-25 1991-06-11 Rf power calibration for an nmr scanner IL98437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/543,609 US5107215A (en) 1990-06-25 1990-06-25 Rf power calibration for an nmr scanner

Publications (2)

Publication Number Publication Date
IL98437A0 IL98437A0 (en) 1992-07-15
IL98437A true IL98437A (en) 1993-05-13

Family

ID=24168765

Family Applications (1)

Application Number Title Priority Date Filing Date
IL98437A IL98437A (en) 1990-06-25 1991-06-11 Rf power calibration for an nmr scanner

Country Status (5)

Country Link
US (1) US5107215A (fr)
EP (1) EP0463789A3 (fr)
JP (1) JPH0618568B2 (fr)
CA (1) CA2042217A1 (fr)
IL (1) IL98437A (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0412734A (ja) * 1990-05-07 1992-01-17 Hitachi Ltd 磁気共鳴イメージングの方法および装置
JP3137366B2 (ja) * 1991-07-19 2001-02-19 株式会社東芝 磁気共鳴イメージング装置
US5481190A (en) * 1991-07-19 1996-01-02 Kabushiki Kaisha Toshiba MRI auto power control method and system
US5309102A (en) * 1993-05-07 1994-05-03 General Electric Company Frequency calibration for MRI scanner
US5416412A (en) * 1993-09-30 1995-05-16 General Electric Company Nutation angle measurement during MRI prescan
DE59509825D1 (de) * 1994-08-03 2001-12-20 Philips Corp Intellectual Pty MR-Verfahren zur Bestimmung der Kernmagnetisierungsverteilung mit einer Oberflächenspulen-Anordnung
US6111411A (en) * 1998-04-07 2000-08-29 Generalelectric Company RF power calibration for an MRI system using multiple axis projections
US6025718A (en) * 1998-04-07 2000-02-15 Hushek; Stephen G. RF power calibration for an MRI system using local coils
US6255816B1 (en) * 1998-10-20 2001-07-03 The Ohio State University Electromagnetic resonator devices and systems incorporating same, resonance and imaging methods
DE19911975C2 (de) * 1999-03-17 2001-03-08 Siemens Ag Magnetresonanz-Sendeverfahren und hiermit korrespondierende Magnetresonanz-Sendeanordnung
DE10393069D2 (de) 2002-05-15 2005-04-21 Siemens Ag Magnetresonanzanlage
JP4504973B2 (ja) * 2003-05-08 2010-07-14 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 危難シグナリングシステム、危難シグナリングを可能にするボディエリアネットワーク、危難の条件をシグナリングする方法、及び危難シグナリングシステムを備える乗物
JP2007528767A (ja) * 2004-03-12 2007-10-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Ｍｒｉ走査パラメータの最適化のための前段走査
GB0619269D0 (en) * 2006-09-29 2006-11-08 King S College London Method of mapping a magnetic field for use in magnetic resonance imaging
US7446526B2 (en) * 2006-12-21 2008-11-04 The Board Of Trustees Of The Leland Stanford Junior University RF field mapping for magnetic resonance imaging
CN101322647B (zh) * 2007-06-15 2010-09-29 Ge医疗系统环球技术有限公司 磁共振成像设备和射频发射增益设置方法
JP5575454B2 (ja) * 2009-10-29 2014-08-20 株式会社東芝 磁気共鳴イメージング装置
WO2014193386A1 (fr) * 2013-05-30 2014-12-04 Halliburton Energy Services, Inc. Étalonnage d'un outil à résonance magnétique nucléaire
CN105395200B (zh) * 2015-12-02 2018-08-03 沈阳东软医疗系统有限公司 磁共振成像系统扫描方法、射频功率校准方法及装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61191949A (ja) * 1985-02-19 1986-08-26 Toshiba Corp 磁気共鳴イメ−ジング装置
NL8600712A (nl) * 1986-03-20 1987-10-16 Philips Nv Magnetische resonatiewerkwijze en inrichting ter bepaling van het hoogfrequent vermogen van een hoogfrequent elektromagnetische alfa-puls.
FR2597205B1 (fr) * 1986-04-15 1988-06-17 Thomson Csf Procede de calibration d'une excitation radiofrequence en experimentation rmn
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
JPS63150061A (ja) * 1986-12-15 1988-06-22 株式会社東芝 磁気共鳴イメ−ジング装置における高周波磁場強度設定方法
US4806866A (en) * 1987-04-29 1989-02-21 General Electric Company Automatic RF frequency adjustment for magnetic resonance scanner
US4866386A (en) * 1988-04-26 1989-09-12 Picker International, Inc. High signal-to-noise, rapid calibration of RF pulses
JPH02264881A (ja) * 1989-04-04 1990-10-29 Toshiba Corp Ｍｒスペクトロスコピー装置
US5001428A (en) * 1989-08-21 1991-03-19 General Electric Company Method for mapping the RF transmit and receive field in an NMR system

Also Published As

Publication number Publication date
CA2042217A1 (fr) 1991-12-26
EP0463789A2 (fr) 1992-01-02
IL98437A0 (en) 1992-07-15
JPH04231937A (ja) 1992-08-20
US5107215A (en) 1992-04-21
JPH0618568B2 (ja) 1994-03-16
EP0463789A3 (en) 1992-07-22

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Legal Events

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