CN111164444B - 具有经改进的脂肪位移校正的Dixon型水/脂肪分离MR成像 - Google Patents

具有经改进的脂肪位移校正的Dixon型水/脂肪分离MR成像 Download PDF

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CN111164444B
CN111164444B CN201880062445.9A CN201880062445A CN111164444B CN 111164444 B CN111164444 B CN 111164444B CN 201880062445 A CN201880062445 A CN 201880062445A CN 111164444 B CN111164444 B CN 111164444B
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image
fat
echo
echo signals
magnetic field
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CN111164444A (zh
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H·埃格斯
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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
    • G01R33/56563—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
    • G01R33/56554—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
    • G01R33/5659—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)
CN201880062445.9A 2017-09-28 2018-09-26 具有经改进的脂肪位移校正的Dixon型水/脂肪分离MR成像 Active CN111164444B (zh)

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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CN111164444A CN111164444A (zh) 2020-05-15
CN111164444B true CN111164444B (zh) 2023-04-04

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US (1) US11226385B2 (cg-RX-API-DMAC7.html)
EP (2) EP3462204A1 (cg-RX-API-DMAC7.html)
JP (1) JP7237066B2 (cg-RX-API-DMAC7.html)
CN (1) CN111164444B (cg-RX-API-DMAC7.html)
WO (1) WO2019063574A1 (cg-RX-API-DMAC7.html)

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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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103635824A (zh) * 2011-06-28 2014-03-12 皇家飞利浦有限公司 使用谱模型分离不同化学物类的mri
CN105103001A (zh) * 2013-04-03 2015-11-25 皇家飞利浦有限公司 使用高snr同相图像和较低snr至少部分地异相图像的dixon型水/脂肪分离mri
CN105556326A (zh) * 2013-09-16 2016-05-04 皇家飞利浦有限公司 具有dixon类型的水/脂肪分离的mr成像
CN105934683A (zh) * 2013-12-19 2016-09-07 皇家飞利浦有限公司 具有对主磁场变化的估计的dixon型水/脂肪分离的mri
CN107076819A (zh) * 2014-09-26 2017-08-18 皇家飞利浦有限公司 具有对流伪影的抑制的Dixon MR成像

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3112890A1 (en) 2008-04-17 2017-01-04 Advanced MR Analytics AB Improved magnetic resonance images
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
US8787639B2 (en) 2010-03-03 2014-07-22 Hitachi Medical Corporation Magnetic resonance imaging device
WO2015161386A1 (en) * 2014-04-24 2015-10-29 Liu Junmin Systems and methods for field mapping in magnetic resonance imaging
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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103635824A (zh) * 2011-06-28 2014-03-12 皇家飞利浦有限公司 使用谱模型分离不同化学物类的mri
CN105103001A (zh) * 2013-04-03 2015-11-25 皇家飞利浦有限公司 使用高snr同相图像和较低snr至少部分地异相图像的dixon型水/脂肪分离mri
CN105556326A (zh) * 2013-09-16 2016-05-04 皇家飞利浦有限公司 具有dixon类型的水/脂肪分离的mr成像
CN105934683A (zh) * 2013-12-19 2016-09-07 皇家飞利浦有限公司 具有对主磁场变化的估计的dixon型水/脂肪分离的mri
CN107076819A (zh) * 2014-09-26 2017-08-18 皇家飞利浦有限公司 具有对流伪影的抑制的Dixon MR成像

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EP3688479B1 (en) 2024-02-14
US20200300948A1 (en) 2020-09-24
WO2019063574A1 (en) 2019-04-04
JP7237066B2 (ja) 2023-03-10
EP3688479A1 (en) 2020-08-05
EP3462204A1 (en) 2019-04-03
US11226385B2 (en) 2022-01-18
CN111164444A (zh) 2020-05-15
JP2020534916A (ja) 2020-12-03

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