DE19580154T1 - Magnetresonanz (MRI)-Abbildungssystem mit zeitlich veränderlichem Gradienten während der Signalerfassung - Google Patents

Magnetresonanz (MRI)-Abbildungssystem mit zeitlich veränderlichem Gradienten während der Signalerfassung

Info

Publication number
DE19580154T1
DE19580154T1 DE19580154T DE19580154T DE19580154T1 DE 19580154 T1 DE19580154 T1 DE 19580154T1 DE 19580154 T DE19580154 T DE 19580154T DE 19580154 T DE19580154 T DE 19580154T DE 19580154 T1 DE19580154 T1 DE 19580154T1
Authority
DE
Germany
Prior art keywords
mri
imaging system
magnetic resonance
time
signal acquisition
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.)
Granted
Application number
DE19580154T
Other languages
English (en)
Other versions
DE19580154B4 (de
Inventor
Robert Edward Glusick
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 DE19580154T1 publication Critical patent/DE19580154T1/de
Application granted granted Critical
Publication of DE19580154B4 publication Critical patent/DE19580154B4/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01R33/561—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]
    • G01R33/446—Multifrequency selective RF pulses, e.g. multinuclear acquisition mode

Landscapes

  • 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)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE19580154T 1994-01-31 1995-01-20 Magnetresonanz (MRI)-Abbildungsverfahren mit zeitlich veränderlichem Gradienten während der Signalerfassung Expired - Lifetime DE19580154B4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/190,747 US5560361A (en) 1994-01-31 1994-01-31 MRI system with time varying gradient during signal acquisition
US190747 1994-01-31
PCT/US1995/000791 WO1995020352A1 (en) 1994-01-31 1995-01-20 Mri system with time varying gradient

Publications (2)

Publication Number Publication Date
DE19580154T1 true DE19580154T1 (de) 1996-02-22
DE19580154B4 DE19580154B4 (de) 2005-12-22

Family

ID=22702602

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19580154T Expired - Lifetime DE19580154B4 (de) 1994-01-31 1995-01-20 Magnetresonanz (MRI)-Abbildungsverfahren mit zeitlich veränderlichem Gradienten während der Signalerfassung

Country Status (6)

Country Link
US (1) US5560361A (de)
JP (1) JP3563404B2 (de)
CN (1) CN1123003A (de)
DE (1) DE19580154B4 (de)
IL (1) IL112406A (de)
WO (1) WO1995020352A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5739691A (en) * 1995-11-28 1998-04-14 The Regents Of The University Of California Multi-frequency digital low pass filter for magnetic resonance imaging
US5652518A (en) * 1996-06-11 1997-07-29 Varian Associates, Inc. Digital filter pre-charging
US6114853A (en) * 1997-06-25 2000-09-05 Toshiba America Mri, Inc. NMR methods for qualification of sequence-induced B0 oscillation and correction of the resultant image artifacts in MRI
US6396266B1 (en) 1998-11-25 2002-05-28 General Electric Company MR imaging system with interactive MR geometry prescription control
US6166544A (en) * 1998-11-25 2000-12-26 General Electric Company MR imaging system with interactive image contrast control
US6275035B1 (en) 1998-11-25 2001-08-14 General Electric Company Method for using three points to define a 2D MR imaging section
US6393449B1 (en) 1999-05-11 2002-05-21 The Ohio State University Research Foundation Arbitrary function generator
US6275722B1 (en) * 1999-07-29 2001-08-14 Philips Electronics North America Corporation Methods and apparatus for magnetic resonance imaging with RF coil sweeping
US6462544B1 (en) 2000-10-24 2002-10-08 General Electric Company Magnetic resonance imaging apparatus
US6757417B2 (en) 2000-12-27 2004-06-29 Ge Medical Systems Global Technology Company, Llc Method and apparatus for defining a three-dimensional imaging section
JP4021402B2 (ja) * 2003-11-11 2007-12-12 株式会社日立製作所 制御可能な検波部を有する核磁気共鳴装置
DE102004017667B4 (de) * 2004-04-10 2006-11-30 Bruker Biospin Ag Digitale Filter für NMR- und MRI-Anwendungen
US7463920B2 (en) * 2005-03-25 2008-12-09 Siemens Medical Solutions Usa, Inc. Rapid MR visualization of interventional devices
CN100415671C (zh) * 2006-02-17 2008-09-03 昆明理工大学 一种低温陶瓷基聚合物复合材料的生产方法
JP4920478B2 (ja) * 2007-04-05 2012-04-18 株式会社東芝 Ｍｒｉ装置
US8283924B2 (en) * 2008-10-20 2012-10-09 University Of Southern California Eddy-current artifact reduction in balanced steady-state free precession magnetic resonance imaging
JP5666779B2 (ja) * 2009-01-27 2015-02-12 株式会社東芝 磁気共鳴イメージング装置
EP3278130B1 (de) * 2015-03-31 2023-09-27 Koninklijke Philips N.V. Drahtlose rf-spulen-vorrichtung mit einer rf-wandler-anordnung und einer magnetfeldsondenanordnung
DE102018205867A1 (de) * 2018-04-18 2019-10-24 Siemens Healthcare Gmbh Verfahren und Vorrichtung zur Erstellung einer Pulssequenz zur Ansteuerung eines Magnetresonanztomographie-Systems
CN114264990B (zh) * 2021-12-07 2023-07-21 武汉联影生命科学仪器有限公司 目标梯度检测方法、装置、计算机设备和存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4531094A (en) * 1982-02-09 1985-07-23 Oxford Research Systems Limited Methods and apparatus of obtaining NMR spectra
NL8203519A (nl) * 1982-09-10 1984-04-02 Philips Nv Werkwijze en inrichting voor het bepalen van een kernmagnetisatieverdeling in een deel van een lichaam.
US4673880A (en) * 1985-08-16 1987-06-16 Technicare Corporation Phase sensitive detection in multislice magnetic resonance imaging systems
IL86570A (en) * 1988-05-31 1991-07-18 Elscint Ltd Reduction of truncation caused artifacts
DE4024164A1 (de) * 1989-08-11 1991-02-14 Siemens Ag Verfahren zur verbesserung des signal-rausch-verhaeltnisses bei einem kernspin-tomographiegeraet

Also Published As

Publication number Publication date
CN1123003A (zh) 1996-05-22
JP3563404B2 (ja) 2004-09-08
US5560361A (en) 1996-10-01
WO1995020352A1 (en) 1995-08-03
IL112406A0 (en) 1995-03-30
DE19580154B4 (de) 2005-12-22
IL112406A (en) 1997-07-13
JPH08508667A (ja) 1996-09-17

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