IN2014CN05013A - - Google Patents

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Publication number
IN2014CN05013A
IN2014CN05013A IN5013CHN2014A IN2014CN05013A IN 2014CN05013 A IN2014CN05013 A IN 2014CN05013A IN 5013CHN2014 A IN5013CHN2014 A IN 5013CHN2014A IN 2014CN05013 A IN2014CN05013 A IN 2014CN05013A
Authority
IN
India
Prior art keywords
gradient echo
gradient
magnetic field
image
echo signals
Prior art date
Application number
Other languages
English (en)
Inventor
Holger Eggers
Peter Börnert
Original Assignee
Koninkl Philips Nv
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 Koninkl Philips Nv filed Critical Koninkl Philips Nv
Publication of IN2014CN05013A publication Critical patent/IN2014CN05013A/en

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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
    • 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
    • G01R33/4828—Resolving the MR signals of different chemical species, e.g. water-fat imaging
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56509—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to motion, displacement or flow, e.g. gradient moment nulling
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56527—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to chemical shift effects
    • 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
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5616—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using gradient refocusing, e.g. EPI

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (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)
IN5013CHN2014 2011-12-23 2012-11-26 IN2014CN05013A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161579725P 2011-12-23 2011-12-23
PCT/IB2012/056748 WO2013093674A1 (fr) 2011-12-23 2012-11-26 Imagerie par résonance magnétique (rm) avec suppression des artefacts de flux

Publications (1)

Publication Number Publication Date
IN2014CN05013A true IN2014CN05013A (fr) 2015-09-18

Family

ID=47522749

Family Applications (1)

Application Number Title Priority Date Filing Date
IN5013CHN2014 IN2014CN05013A (fr) 2011-12-23 2012-11-26

Country Status (8)

Country Link
US (1) US9746539B2 (fr)
EP (1) EP2798364B1 (fr)
JP (1) JP6046742B2 (fr)
CN (1) CN104067137B (fr)
BR (1) BR112014015398A8 (fr)
IN (1) IN2014CN05013A (fr)
RU (1) RU2605524C2 (fr)
WO (1) WO2013093674A1 (fr)

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CN104459587B (zh) * 2013-09-17 2018-02-09 北京万东医疗科技股份有限公司 一种用于核磁共振成像系统的流动补偿方法
US10175330B2 (en) * 2014-09-26 2019-01-08 Koninklijke Philips N.V. Dixon MR imaging with suppression of flow artifacts
WO2016207035A1 (fr) * 2015-06-26 2016-12-29 Koninklijke Philips N.V. Imagerie par résonance magnétique de dixon à phase corrigée
US9727953B2 (en) * 2015-06-30 2017-08-08 General Electric Company Method and apparatus for ring artifact repair of magnetic resonance images
EP3465246A1 (fr) 2016-06-02 2019-04-10 Koninklijke Philips N.V. Imagerie rm de séparation eau/graisse de type dixon
DE102016212632A1 (de) 2016-07-12 2018-01-18 Siemens Healthcare Gmbh Reduzierung von Artefakten in der Magnetresonanztechnik
EP3413070A1 (fr) 2017-06-09 2018-12-12 Koninklijke Philips N.V. Imagerie rm avec séparation eau/graisse de type dixon à double écho
CN109222974A (zh) * 2018-11-30 2019-01-18 济南市儿童医院（山东大学齐鲁儿童医院） 一种具有对流动伪影的抑制的mr成像方法
CN112578325B (zh) * 2019-09-27 2022-07-05 上海联影医疗科技股份有限公司 磁共振成像方法、装置、计算机设备和存储介质
EP3859366A1 (fr) 2020-01-30 2021-08-04 Koninklijke Philips N.V. Imagerie par résonance magnétique de séparation de l'eau/graisse de type dixon avec suppression de fuites induites par écoulement et/ou d'artéfacts de permutation
CN113805130B (zh) * 2020-06-17 2024-01-30 西门子(深圳)磁共振有限公司 快速磁化率敏感性成像方法、装置及磁共振成像系统
DE102020212173A1 (de) * 2020-09-28 2022-03-31 Siemens Healthcare Gmbh Verfahren zur Erfassung von Referenzdaten für eine Phasenkorrektur in der Magnetresonanztechnik
EP4145165A1 (fr) * 2021-09-03 2023-03-08 Siemens Healthcare GmbH Commande d'un appareil à résonance magnétique à phase maxwell compensée

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US5170122A (en) 1991-07-25 1992-12-08 General Electric NMR imaging using flow compensated SSFP pulse sequences
US5206591A (en) 1991-10-23 1993-04-27 Siemens Aktiengesellschaft Method for obtaining data in phase-contrast MR angiography
DE4319539A1 (de) * 1993-06-12 1994-12-15 Philips Patentverwaltung Verfahren zur Erzeugung einer MR-Bildfolge und Anordnung zur Durchführung des Verfahrens
DE4329922A1 (de) * 1993-09-04 1995-03-09 Philips Patentverwaltung MR-Abbildungsverfahren und Anordnung zur Durchführung des Verfahrens
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DE19607023A1 (de) * 1996-02-24 1997-08-28 Philips Patentverwaltung MR-Verfahren mit reduzierten Bewegungsartefakten
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CN1111746C (zh) * 1998-04-17 2003-06-18 皇家菲利浦电子有限公司 磁共振成象方法和装置
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JP3617458B2 (ja) * 2000-02-18 2005-02-02 セイコーエプソン株式会社 表示装置用基板、液晶装置及び電子機器
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JP3785128B2 (ja) * 2002-09-19 2006-06-14 株式会社東芝 画像診断装置、画像処理方法、画像処理装置及び記憶媒体
JP5619339B2 (ja) * 2006-09-13 2014-11-05 株式会社東芝 磁気共鳴画像診断装置
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JP4936864B2 (ja) * 2006-11-22 2012-05-23 株式会社東芝 磁気共鳴イメージング装置
US7777486B2 (en) * 2007-09-13 2010-08-17 The Board Of Trustees Of The Leland Stanford Junior University Magnetic resonance imaging with bipolar multi-echo sequences
CN101896835B (zh) * 2007-12-11 2016-09-14 皇家飞利浦电子股份有限公司 减少mri中的运动伪影
WO2009093517A1 (fr) * 2008-01-23 2009-07-30 Hitachi Medical Corporation Imageur à résonance magnétique et procédé d'acquisition d'images multi-contrastes

Also Published As

Publication number Publication date
CN104067137B (zh) 2017-12-12
US9746539B2 (en) 2017-08-29
BR112014015398A2 (pt) 2017-06-13
EP2798364A1 (fr) 2014-11-05
RU2605524C2 (ru) 2016-12-20
US20140368195A1 (en) 2014-12-18
EP2798364B1 (fr) 2021-08-11
BR112014015398A8 (pt) 2017-07-04
RU2014125528A (ru) 2016-02-20
JP2015504714A (ja) 2015-02-16
CN104067137A (zh) 2014-09-24
WO2013093674A1 (fr) 2013-06-27
JP6046742B2 (ja) 2016-12-21

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