JP7325418B2 - Ｂ０基準スキャン及びｗａｓｓｒスキャンから磁場マップを特定するｍｒｉ法 - Google Patents

Ｂ０基準スキャン及びｗａｓｓｒスキャンから磁場マップを特定するｍｒｉ法 Download PDF

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JP7325418B2
JP7325418B2 JP2020538108A JP2020538108A JP7325418B2 JP 7325418 B2 JP7325418 B2 JP 7325418B2 JP 2020538108 A JP2020538108 A JP 2020538108A JP 2020538108 A JP2020538108 A JP 2020538108A JP 7325418 B2 JP7325418 B2 JP 7325418B2
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data
voxels
magnetic resonance
imaging system
field
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JP2021511107A5 (enExample
JP2021511107A (ja
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ウェールト エルウィン デ
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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
    • G01R33/24—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
    • G01R33/543—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
    • G01R33/5605—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by transferring coherence or polarization from a spin species to another, e.g. creating magnetization transfer contrast [MTC], polarization transfer using nuclear Overhauser enhancement [NOE]
    • 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]

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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)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2020538108A 2018-01-12 2019-01-09 Ｂ０基準スキャン及びｗａｓｓｒスキャンから磁場マップを特定するｍｒｉ法 Active JP7325418B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18151457.1A EP3511726A1 (en) 2018-01-12 2018-01-12 Mri method for determining a magnetic field map from a b0 reference scan and a wassr scan
EP18151457.1 2018-01-12
PCT/EP2019/050430 WO2019137951A1 (en) 2018-01-12 2019-01-09 Mri method for determining a magnetic field map from a bo reference scan and a wassr scan

Publications (3)

Publication Number Publication Date
JP2021511107A JP2021511107A (ja) 2021-05-06
JP2021511107A5 JP2021511107A5 (enExample) 2022-03-10
JP7325418B2 true JP7325418B2 (ja) 2023-08-14

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JP2020538108A Active JP7325418B2 (ja) 2018-01-12 2019-01-09 Ｂ０基準スキャン及びｗａｓｓｒスキャンから磁場マップを特定するｍｒｉ法

Country Status (5)

Country Link
US (1) US11307271B2 (enExample)
EP (2) EP3511726A1 (enExample)
JP (1) JP7325418B2 (enExample)
CN (1) CN111712718B (enExample)
WO (1) WO2019137951A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112017005080T5 (de) * 2016-10-06 2019-07-11 Koninklijke Philips N.V. Direkte messung des b0-ausserresonanzfelds während magnetresonanz-fingerabdruckerzeugung
EP3889634A1 (en) * 2020-04-01 2021-10-06 Koninklijke Philips N.V. Reduction of off-resonance effects in magnetic resonance imaging
CN113777545B (zh) * 2020-06-10 2024-07-05 西门子医疗有限公司 化学交换饱和转移成像校正方法、装置及可读存储介质
US11366189B2 (en) * 2020-09-25 2022-06-21 Uih America, Inc. Systems and methods for magnetic resonance imaging
CN115349847B (zh) * 2022-10-19 2023-01-31 之江实验室 基于分离式定量apt成像的乳腺肿瘤辨别系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2205986B1 (en) * 2007-09-26 2013-07-03 The Johns Hopkins University Frequency referencing for chemical exchange saturation transfer (cest) mri
US10004422B2 (en) * 2010-01-25 2018-06-26 Beth Israel Deaconess Medical Center Method for measuring magnetization transfer between molecules with magnetic resonance imaging
US20120286781A1 (en) * 2011-04-15 2012-11-15 The Johns Hopkins University Magnetic Resonance Methodology for Imaging of Exchange-Relayed Intramolecular Nuclear Overhauser Enhancement Effects in Mobile Solutes
DE102011078680B3 (de) 2011-07-05 2012-12-20 Siemens Aktiengesellschaft Magnetfeldunempfindliche CEST-Bildgebung
EP2648014A1 (en) * 2012-04-03 2013-10-09 Koninklijke Philips N.V. MR imaging using APT contrast enhancement and sampling at multiple echo times
WO2014043668A1 (en) * 2012-09-17 2014-03-20 The Johns Hopkins University Non-invasive temperature mapping using temperature-responsive water saturation shift referencing (t-wassr) mri
EP2929361A2 (en) * 2012-12-06 2015-10-14 Koninklijke Philips N.V. Local artifact reduction with insignificant side effects
US10180478B2 (en) * 2013-03-12 2019-01-15 The Johns Hopkins University Magnetic resonance system and method for detecting the buildup of the transfer of changes in magnetization from nuclei in mobile solute molecules in tissue
WO2015011584A2 (en) * 2013-07-23 2015-01-29 Koninklijke Philips N.V. Differentiating tissues with mr imaging
EP3039441A1 (en) * 2013-08-30 2016-07-06 Koninklijke Philips N.V. Dixon magnetic resonance imaging
CN104997511A (zh) 2015-06-01 2015-10-28 中国科学院深圳先进技术研究院 用于磁共振化学交换饱和转移成像的cestr测量方法和系统
US10042025B2 (en) * 2016-06-02 2018-08-07 Wisconsin Alumni Research Foundation System and method for chemical shift magnetic resonance imaging using magnetization transfer

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Elena Vinogradov, et al.，CEST: from basic principles to applications, challenges and opportunities，J Magn Reson.，2013年，229，pp.155-172
Mina Kim, et al.，Water Saturation Shift Referencing (WASSR) for Chemical Exchange Saturation Transfer (CEST) Experiments，Magnetic Resonance in Medicine，61，2009年，pp.1441-1450
Phillip Zhe Sun, et al.，Correction for Artifacts Induced by B0 and B1 Field Inhomogeneities in pH-Sensitive Chemical Exchange Saturation Transfer (CEST) Imaging，Magnetic Resonance in Medicine，2007年，58，pp.1207-1215

Also Published As

Publication number Publication date
EP3737954A1 (en) 2020-11-18
US20200341080A1 (en) 2020-10-29
CN111712718B (zh) 2023-10-20
EP3737954B1 (en) 2022-09-28
CN111712718A (zh) 2020-09-25
US11307271B2 (en) 2022-04-19
EP3511726A1 (en) 2019-07-17
WO2019137951A1 (en) 2019-07-18
JP2021511107A (ja) 2021-05-06

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