JP7337808B2 - デュアル分解能Ｄｉｘｏｎ磁気共鳴イメージング - Google Patents

デュアル分解能Ｄｉｘｏｎ磁気共鳴イメージング Download PDF

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JP7337808B2
JP7337808B2 JP2020538125A JP2020538125A JP7337808B2 JP 7337808 B2 JP7337808 B2 JP 7337808B2 JP 2020538125 A JP2020538125 A JP 2020538125A JP 2020538125 A JP2020538125 A JP 2020538125A JP 7337808 B2 JP7337808 B2 JP 7337808B2
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magnetic resonance
resolution
point dixon
resonance imaging
pulse sequence
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JP2021510568A (ja
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ホルガー エガース
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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
    • G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/243—Spatial mapping of the polarizing magnetic field
    • 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation
    • 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
    • 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
    • G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
    • 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]
    • 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
    • G01R33/543—Control of the operation of the MR system, e.g. setting of acquisition parameters prior to or during MR data acquisition, dynamic shimming, use of one or more scout images for scan plane prescription
    • 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

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2020538125A 2018-01-11 2019-01-09 デュアル分解能Ｄｉｘｏｎ磁気共鳴イメージング Active JP7337808B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18151141.1A EP3511725A1 (en) 2018-01-11 2018-01-11 Dual resolution dixon magnetic resonance imaging
EP18151141.1 2018-01-11
PCT/EP2019/050385 WO2019137932A1 (en) 2018-01-11 2019-01-09 Dual resolution dixon magnetic resonance imaging

Publications (3)

Publication Number Publication Date
JP2021510568A JP2021510568A (ja) 2021-04-30
JP2021510568A5 JP2021510568A5 (enExample) 2022-01-18
JP7337808B2 true JP7337808B2 (ja) 2023-09-04

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US (1) US11280865B2 (enExample)
EP (2) EP3511725A1 (enExample)
JP (1) JP7337808B2 (enExample)
CN (1) CN111542762B (enExample)
WO (1) WO2019137932A1 (enExample)

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CN112674752B (zh) * 2020-12-30 2024-09-27 深圳市联影高端医疗装备创新研究院 功能性磁共振成像方法、装置、设备及存储介质
EP4043902A1 (en) * 2021-02-11 2022-08-17 Koninklijke Philips N.V. Dixon-type water/fat separation mr imaging
US11460526B1 (en) * 2021-04-29 2022-10-04 GE Precision Healthcare LLC Pulse sequence generation systems and methods of reducing acoustic noise in magnetic resonance systems
JP7221371B1 (ja) 2021-12-21 2023-02-13 ジーイー・プレシジョン・ヘルスケア・エルエルシー 磁気共鳴イメージング装置、血管画像生成方法、および記録媒体
US11927657B2 (en) * 2022-04-13 2024-03-12 Regents Of The University Of Michigan Multiresolution magnetic resonance fingerprinting systems and methods
EP4261557A1 (en) * 2022-04-15 2023-10-18 Koninklijke Philips N.V. Mr imaging using partial echo acquisition
US20260072114A1 (en) * 2024-09-12 2026-03-12 GE Precision Healthcare LLC Rapid simultaneous b0 and b1 mapping for magnetic resonance imaging

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JP2002085376A (ja) 2000-09-20 2002-03-26 Hitachi Medical Corp 核磁気共鳴イメージング装置および方法
WO2016207035A1 (en) 2015-06-26 2016-12-29 Koninklijke Philips N.V. Phase corrected dixon magnetic resonance imaging

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JP3512482B2 (ja) * 1994-09-06 2004-03-29 株式会社東芝 磁気共鳴映像装置
US7042215B2 (en) * 2003-04-25 2006-05-09 Case Western Reserve University Three point dixon techniques in MRI spiral trajectories with off-resonance correction where each TE is a multiple of 2.2 milliseconds
US7227359B2 (en) * 2003-11-26 2007-06-05 Boards Of Regents, The University Of Texas System Method and apparatus for phase-sensitive magnetic resonance imaging
US7486074B2 (en) * 2006-04-25 2009-02-03 The Board Of Trustees Of The Leland Stanford Junior University Self-calibration methods for parallel imaging and multipoint water-fat separation methods
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WO2011080693A1 (en) * 2009-12-30 2011-07-07 Koninklijke Philips Electronics N.V. Water -fat separation in mri using partial echoes at different echo times
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Publication number Publication date
EP3511725A1 (en) 2019-07-17
WO2019137932A1 (en) 2019-07-18
CN111542762B (zh) 2024-03-15
EP3692382B1 (en) 2021-03-10
US11280865B2 (en) 2022-03-22
EP3692382A1 (en) 2020-08-12
JP2021510568A (ja) 2021-04-30
US20200363486A1 (en) 2020-11-19
CN111542762A (zh) 2020-08-14

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