DE112014004240B4 - MRI mit Wasser-/Fettseparation vom Dixon-Typ und mit unterschiedlichen Auflösungen erfassten Echos zur Wirbelstromkorrektur - Google Patents

MRI mit Wasser-/Fettseparation vom Dixon-Typ und mit unterschiedlichen Auflösungen erfassten Echos zur Wirbelstromkorrektur Download PDF

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DE112014004240B4
DE112014004240B4 DE112014004240.4T DE112014004240T DE112014004240B4 DE 112014004240 B4 DE112014004240 B4 DE 112014004240B4 DE 112014004240 T DE112014004240 T DE 112014004240T DE 112014004240 B4 DE112014004240 B4 DE 112014004240B4
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echo signals
magnetic field
echo
spatial resolution
phase errors
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DE112014004240T5 (de
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Holger Eggers
Adrianus Joseph Willibrordus Duijndam
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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
    • G01R33/54—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
    • G01R33/5611—Parallel magnetic resonance imaging, e.g. sensitivity encoding [SENSE], simultaneous acquisition of spatial harmonics [SMASH], unaliasing by Fourier encoding of the overlaps using the temporal dimension [UNFOLD], k-t-broad-use linear acquisition speed-up technique [k-t-BLAST], k-t-SENSE
    • 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
    • G01R33/56518—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to eddy currents, e.g. caused by switching of the gradient 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
    • G01R33/44—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)
  • 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)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE112014004240.4T 2013-09-16 2014-08-27 MRI mit Wasser-/Fettseparation vom Dixon-Typ und mit unterschiedlichen Auflösungen erfassten Echos zur Wirbelstromkorrektur Active DE112014004240B4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13184504.2 2013-09-16
EP13184504 2013-09-16
PCT/EP2014/068111 WO2015036238A1 (en) 2013-09-16 2014-08-27 Mr imaging with dixon-type water/fat separation

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DE112014004240T5 DE112014004240T5 (de) 2016-06-09
DE112014004240B4 true DE112014004240B4 (de) 2019-04-04

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US (1) US10234522B2 (enExample)
JP (1) JP6469703B2 (enExample)
CN (1) CN105556326B (enExample)
DE (1) DE112014004240B4 (enExample)
WO (1) WO2015036238A1 (enExample)

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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
DE102015202062A1 (de) * 2015-02-05 2016-08-11 Siemens Healthcare Gmbh Rekonstruktion von Magnetresonanzbilddaten für mehrere chemische Substanzarten bei Multi-Echo-Bildgebungsverfahren
WO2016207035A1 (en) * 2015-06-26 2016-12-29 Koninklijke Philips N.V. Phase corrected dixon magnetic resonance imaging
RU2739479C2 (ru) 2016-06-02 2020-12-24 Конинклейке Филипс Н.В. Магнитно-резонансная томография с разделением воды и жира по методу диксона
US10895619B2 (en) * 2016-11-24 2021-01-19 Koninklijke Philips N.V. MR imaging with Dixon-type water/fat separation
EP3364207A1 (en) 2017-02-17 2018-08-22 Koninklijke Philips N.V. Phase error correction for bipolar read out gradients
CN106841273B (zh) * 2017-04-27 2018-04-24 厦门大学 一种基于单扫描时空编码磁共振成像的水脂分离重建方法
EP3413070A1 (en) * 2017-06-09 2018-12-12 Koninklijke Philips N.V. Dual-echo dixon-type water/fat separation mr imaging
EP3413071A1 (en) * 2017-06-09 2018-12-12 Koninklijke Philips N.V. Mr imaging using a stack-of-stars acquisition with variable contrast
EP3447517A1 (en) * 2017-08-24 2019-02-27 Koninklijke Philips N.V. Dixon-type water/fat separation mr imaging
EP3462204A1 (en) * 2017-09-28 2019-04-03 Koninklijke Philips N.V. Dixon-type water/fat separation mr imaging with improved fat shift correction
EP3511725A1 (en) * 2018-01-11 2019-07-17 Koninklijke Philips N.V. Dual resolution dixon magnetic resonance imaging
US10955506B2 (en) * 2018-03-09 2021-03-23 Koninklijke Philips N.V. Parallel MR imaging with spectral fat suppression
CN108872901B (zh) * 2018-07-02 2020-06-16 华东师范大学 一种定量脂肪含量的磁共振波谱全自动后处理方法
EP3893013A1 (en) * 2020-04-06 2021-10-13 Koninklijke Philips N.V. Mr imaging for radiation therapy planning
US20250199102A1 (en) * 2023-12-13 2025-06-19 Syntheticmr Ab (Publ) Method and system of multi-parametric magnetic resonance imaging

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Also Published As

Publication number Publication date
JP2016530034A (ja) 2016-09-29
DE112014004240T5 (de) 2016-06-09
US20160231405A1 (en) 2016-08-11
CN105556326A (zh) 2016-05-04
CN105556326B (zh) 2020-06-16
US10234522B2 (en) 2019-03-19
WO2015036238A1 (en) 2015-03-19
JP6469703B2 (ja) 2019-02-13

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