JP7559763B2 - ウェーブ符号化を用いたパラレルｍｒイメージング - Google Patents

ウェーブ符号化を用いたパラレルｍｒイメージング Download PDF

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JP7559763B2
JP7559763B2 JP2021549205A JP2021549205A JP7559763B2 JP 7559763 B2 JP7559763 B2 JP 7559763B2 JP 2021549205 A JP2021549205 A JP 2021549205A JP 2021549205 A JP2021549205 A JP 2021549205A JP 7559763 B2 JP7559763 B2 JP 7559763B2
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magnetic field
sinusoidally varying
varying magnetic
field gradient
phase encoding
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Japanese (ja)
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JP2022521277A (ja
JP2022521277A5 (enExample
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ゾーァチェン ジュオ
ペーター ボルナート
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Koninklijke Philips NV
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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
    • G01R33/561—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
    • 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
    • G01R33/56563—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
    • G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • G01R33/4833—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices
    • G01R33/4835—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices of multiple slices
    • 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
    • G01R33/561—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]
    • G01R33/5617—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 RF refocusing, e.g. RARE

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2021549205A 2019-02-25 2020-02-18 ウェーブ符号化を用いたパラレルｍｒイメージング Active JP7559763B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962809779P 2019-02-25 2019-02-25
US62/809,779 2019-02-25
EP19170549.0A EP3730962A1 (en) 2019-04-23 2019-04-23 Parallel mr imaging using wave-encoding
EP19170549.0 2019-04-23
PCT/EP2020/054159 WO2020173749A1 (en) 2019-02-25 2020-02-18 Parallel mr imaging using wave-encoding

Publications (3)

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JP2022521277A JP2022521277A (ja) 2022-04-06
JP2022521277A5 JP2022521277A5 (enExample) 2023-02-17
JP7559763B2 true JP7559763B2 (ja) 2024-10-02

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US (1) US11815577B2 (enExample)
EP (1) EP3931586B1 (enExample)
JP (1) JP7559763B2 (enExample)
WO (1) WO2020173749A1 (enExample)

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Publication number Priority date Publication date Assignee Title
CN120219554B (zh) * 2025-05-28 2025-08-15 北京航空航天大学 基于数据重排的磁粒子成像方法和系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002165776A (ja) 2000-12-04 2002-06-11 Hitachi Medical Corp 磁気共鳴イメージング装置における計測方法及び磁気共鳴イメージング装置

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US7301342B2 (en) 2005-04-15 2007-11-27 Case Western Reserve University Bunched phase encoding (BPE)
DE102007035176B4 (de) * 2007-07-27 2010-03-18 Siemens Ag Verfahren zur Aufzeichnung und Verarbeitung einer Folge von zeitlich aufeinander folgenden Bilddatensätzen sowie Magnet-Resonanz-Gerät
DE102013100349B4 (de) * 2013-01-14 2016-05-12 Siemens Aktiengesellschaft Echoplanare MR-Bildgebung mit zickzack-artigen k-Raum-Trajektorien
US10132889B2 (en) * 2013-05-22 2018-11-20 General Electric Company System and method for reducing acoustic noise level in MR imaging
JP2016533838A (ja) * 2013-09-10 2016-11-04 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 金属耐性ｍｒイメージング
CN104714199B (zh) * 2013-12-17 2018-04-24 西门子(深圳)磁共振有限公司 一种磁共振成像方法和装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002165776A (ja) 2000-12-04 2002-06-11 Hitachi Medical Corp 磁気共鳴イメージング装置における計測方法及び磁気共鳴イメージング装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Berkin Bilgic, et al.，Wave-CAIPI for Highly Accelerated 3D Imaging，Magnetic Resonance in Medicine，2015年，73，pp.2152-2162
Felix A. Breuer, et al.，Zigzag Sampling for Improved Parallel Imaging，Magnetic Resonance in Medicine，2008年，60，474-478
Richard D. Hoge, et al.，Density Compensation Functions for Spiral MRI，MRM，1997年，38，pp.117-128

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JP2022521277A (ja) 2022-04-06
EP3931586B1 (en) 2022-06-22
WO2020173749A1 (en) 2020-09-03
US11815577B2 (en) 2023-11-14
US20220155396A1 (en) 2022-05-19
EP3931586A1 (en) 2022-01-05

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