CN105308469B - 一种mr成像方法、mr设备以及相关数据载体 - Google Patents

一种mr成像方法、mr设备以及相关数据载体 Download PDF

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CN105308469B
CN105308469B CN201480032066.7A CN201480032066A CN105308469B CN 105308469 B CN105308469 B CN 105308469B CN 201480032066 A CN201480032066 A CN 201480032066A CN 105308469 B CN105308469 B CN 105308469B
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map
fat
water
signal data
sensitivity
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CN105308469A (zh
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E·德维尔特
S·科佩尔曼
J·M·佩特斯
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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
    • G01R33/54—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
    • G01R33/24—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
    • G01R33/44—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
    • G01R33/5607—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reducing the NMR signal of a particular spin species, e.g. of a chemical species for fat suppression, or of a moving spin species for black-blood 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
    • G01R33/561—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
    • G01R33/56563—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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CN201480032066.7A 2013-06-06 2014-06-05 一种mr成像方法、mr设备以及相关数据载体 Active CN105308469B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13170826 2013-06-06
EP13170826.5 2013-06-06
PCT/EP2014/061644 WO2014195384A1 (en) 2013-06-06 2014-06-05 Parallel mri with b0 distortion correction and multi-echo dixon water-fat separation using regularised sense reconstruction

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CN105308469A CN105308469A (zh) 2016-02-03
CN105308469B true CN105308469B (zh) 2019-11-12

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EP (1) EP3004908B1 (enExample)
JP (1) JP6243522B2 (enExample)
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WO (1) WO2014195384A1 (enExample)

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WO2012073181A2 (en) * 2010-12-02 2012-06-07 Koninklijke Philips Electronics N.V. Mr imaging using a multi-point dixon technique
EP2461175A1 (en) * 2010-12-02 2012-06-06 Koninklijke Philips Electronics N.V. MR imaging using a multi-point Dixon technique
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
US10908235B2 (en) 2016-04-08 2021-02-02 The Johns Hopkins University Method of fast imaging of NMR parameters with variably-accelerated sensitivity encoding
JP6928077B2 (ja) * 2016-08-15 2021-09-01 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． ディクソン型の水／脂肪分離を用いるｍｒ撮像
WO2018036986A1 (en) * 2016-08-25 2018-03-01 Koninklijke Philips N.V. Bo-corrected sensitivity encoding magnetic resonance imaging
EP3495832A1 (en) * 2017-12-11 2019-06-12 Koninklijke Philips N.V. Diffusion mr imaging with fat suppression
EP3511725A1 (en) * 2018-01-11 2019-07-17 Koninklijke Philips N.V. Dual resolution dixon magnetic resonance imaging
EP3521849A1 (en) 2018-02-02 2019-08-07 Koninklijke Philips N.V. Mri with fat/water separation
US10955506B2 (en) * 2018-03-09 2021-03-23 Koninklijke Philips N.V. Parallel MR imaging with spectral fat suppression
JP7267816B2 (ja) * 2018-04-13 2023-05-02 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置、ｒｆコイル及び磁気共鳴イメージング方法
US11333731B2 (en) * 2018-04-13 2022-05-17 Canon Medical Systems Corporation Magnetic resonance imaging apparatus, RF coil, and magnetic resonance imaging method
EP3719525A1 (en) * 2019-04-01 2020-10-07 Koninklijke Philips N.V. Correction of magnetic resonance images using simulated magnetic resonance images
EP3751300A1 (en) * 2019-06-13 2020-12-16 Koninklijke Philips N.V. Reconstruction of spiral k-space sampled magnetic resonance images
EP3770625B1 (en) * 2019-07-24 2024-06-26 Siemens Healthineers AG Mri using compressed sensing with improved regularization parameter
CN110780248A (zh) * 2019-11-12 2020-02-11 无锡鸣石峻致医疗科技有限公司 一种基于磁共振原理的器官脂肪无创定量检测系统
US11287504B2 (en) * 2020-08-11 2022-03-29 Uih America, Inc. Systems and methods for magnetic resonance imaging
DE102024202698A1 (de) 2024-03-21 2025-09-25 Siemens Healthineers Ag Verfahren und Vorrichtung zur Korrektur von Inhomogenitäten eines Hauptmagnetfeldes eines MRT-Scanners

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US20090292197A1 (en) * 2006-07-06 2009-11-26 Koninklijke Philips Electronics N. V. Magnetic resonance device and method
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CN102920455A (zh) * 2011-01-27 2013-02-13 美国西门子医疗解决公司 用于在磁共振成像中独立地操作脂肪和水分量的方法
CN102949189A (zh) * 2011-08-31 2013-03-06 上海联影医疗科技有限公司 一种磁共振成像中用多通道数据组合实现水脂分离的方法

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WO2009135167A1 (en) * 2008-05-02 2009-11-05 Thomas Jefferson University Phase labeling using sensitivity encoding: data acquisition and image reconstruction for geometric distortion correction in epi.
CN102525460A (zh) * 2010-12-29 2012-07-04 西门子(深圳)磁共振有限公司 一种磁共振成像水脂图像辨析方法及装置
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WO2014195384A1 (en) 2014-12-11
CN105308469A (zh) 2016-02-03
EP3004908B1 (en) 2021-04-28
JP2016519994A (ja) 2016-07-11
US10107882B2 (en) 2018-10-23
JP6243522B2 (ja) 2017-12-06
US20160124064A1 (en) 2016-05-05
EP3004908A1 (en) 2016-04-13

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