JP7237066B2 - 改善された脂肪シフト補正をもつディクソンタイプの水／脂肪分離ｍｒイメージング - Google Patents

改善された脂肪シフト補正をもつディクソンタイプの水／脂肪分離ｍｒイメージング Download PDF

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JP7237066B2
JP7237066B2 JP2020517151A JP2020517151A JP7237066B2 JP 7237066 B2 JP7237066 B2 JP 7237066B2 JP 2020517151 A JP2020517151 A JP 2020517151A JP 2020517151 A JP2020517151 A JP 2020517151A JP 7237066 B2 JP7237066 B2 JP 7237066B2
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images
fat
echo
magnetic field
phase error
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JP2020534916A (ja
JP2020534916A5 (OSRAM
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ホルヘル エッフェールス
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Koninklijke Philips NV
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    • 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • G01R33/485—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy based on chemical shift information [CSI] or spectroscopic imaging, e.g. to acquire the spatial distributions of metabolites
    • 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
    • G01R33/5602—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by filtering or weighting based on different relaxation times within the sample, e.g. T1 weighting using an inversion pulse
    • 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
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56545—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by finite or discrete sampling, e.g. Gibbs ringing, truncation artefacts, phase aliasing artefacts
    • 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
    • G01R33/56554—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by acquiring plural, differently encoded echo signals after one RF excitation, e.g. correction for readout gradients of alternating polarity in EPI
    • 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
    • G01R33/54—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
    • G01R33/5659—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the RF magnetic field, e.g. spatial inhomogeneities of the RF magnetic field

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  • 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)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2020517151A 2017-09-28 2018-09-26 改善された脂肪シフト補正をもつディクソンタイプの水／脂肪分離ｍｒイメージング Active JP7237066B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP17193731.1 2017-09-28
EP17193731.1A EP3462204A1 (en) 2017-09-28 2017-09-28 Dixon-type water/fat separation mr imaging with improved fat shift correction
PCT/EP2018/076035 WO2019063574A1 (en) 2017-09-28 2018-09-26 DIXON TYPE WATER / GREASE SEPARATION MAGNETIC RESONANCE IMAGING WITH ENHANCED FAT OFFSET CORRECTION

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JP2020534916A JP2020534916A (ja) 2020-12-03
JP2020534916A5 JP2020534916A5 (OSRAM) 2021-10-28
JP7237066B2 true JP7237066B2 (ja) 2023-03-10

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US (1) US11226385B2 (OSRAM)
EP (2) EP3462204A1 (OSRAM)
JP (1) JP7237066B2 (OSRAM)
CN (1) CN111164444B (OSRAM)
WO (1) WO2019063574A1 (OSRAM)

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US11163027B2 (en) * 2019-06-05 2021-11-02 Canon Medical Systems Corporation Magnetic resonance imaging apparatus and magnetic resonance imaging method
JP7825493B2 (ja) * 2022-04-04 2026-03-06 キヤノンメディカルシステムズ株式会社 データ処理装置及び磁気共鳴イメージング装置

Citations (1)

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Publication number Priority date Publication date Assignee Title
US20170038446A1 (en) 2014-04-24 2017-02-09 Junmin LIU Systems and methods for field mapping in magnetic resonance imaging

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EP2283376B1 (en) 2008-04-17 2016-03-30 Advanced MR Analytics AB Improvement in magnetic resonance imaging relating to correction of chemical shift artifact and intensity inhomogeneity
US8030923B2 (en) 2009-03-31 2011-10-04 General Electric Company Method and system to perform phase correction for species separation in magnetic resonance imaging
JP5506911B2 (ja) 2010-03-03 2014-05-28 株式会社日立メディコ 磁気共鳴撮影装置
WO2013001415A1 (en) * 2011-06-28 2013-01-03 Koninklijke Philips Electronics N.V. Mri with separation of different chemical species using a spectral model
US10274566B2 (en) * 2013-04-03 2019-04-30 Koninklijke Philips N.V. Dixon-type water/fat separation MRI using high-SNR in-phase image and lower-SNR at least partially out-of-phase image
JP6469703B2 (ja) * 2013-09-16 2019-02-13 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Ｄｉｘｏｎ式水／脂肪分離を用いたＭＲイメージング
WO2015091956A1 (en) * 2013-12-19 2015-06-25 Koninklijke Philips N.V. Mri with dixon-type water/fat separation with estimation of the main magnetic field variations
WO2016046062A1 (en) * 2014-09-26 2016-03-31 Koninklijke Philips N.V. Dixon mr imaging with suppression of flow artifacts
US9880244B2 (en) * 2014-12-29 2018-01-30 General Electric Company Method and apparatus for separating chemical species in magnetic resonance imaging
US10534057B2 (en) * 2017-03-10 2020-01-14 Maria Drangova Method for dixon MRI, multi-contrast imaging and multi-parametric mapping with a single multi-echo gradient-recalled echo acquisition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170038446A1 (en) 2014-04-24 2017-02-09 Junmin LIU Systems and methods for field mapping in magnetic resonance imaging

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Holger Eggers and Peter Boernert，Chemical Shift Encoding-Based Water-Fat Separation Methods，Journal of Magnetic Resonance Imaging，米国，International Society for Magnetic Resonance in Medicine，2014年01月21日，Vol. 40, Issue 2，p.251-268，doi:10.1002/jmri.24568, ISSN 1522-2586

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Publication number Publication date
EP3688479B1 (en) 2024-02-14
CN111164444B (zh) 2023-04-04
US11226385B2 (en) 2022-01-18
US20200300948A1 (en) 2020-09-24
CN111164444A (zh) 2020-05-15
WO2019063574A1 (en) 2019-04-04
JP2020534916A (ja) 2020-12-03
EP3688479A1 (en) 2020-08-05
EP3462204A1 (en) 2019-04-03

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