CN103229069B - 使用多点狄克逊技术的mr 成像 - Google Patents

使用多点狄克逊技术的mr 成像 Download PDF

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Publication number
CN103229069B
CN103229069B CN201180057549.9A CN201180057549A CN103229069B CN 103229069 B CN103229069 B CN 103229069B CN 201180057549 A CN201180057549 A CN 201180057549A CN 103229069 B CN103229069 B CN 103229069B
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image
signal data
data set
calibration
fat
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CN103229069A (zh
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A·W·西蒙内蒂
G·H·海里戈
P·博尔纳特
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Koninklijke Philips NV
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Koninklijke Philips Electronics 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
    • G01R33/58—Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
    • G01R33/583—Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56527—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to chemical shift effects

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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)
CN201180057549.9A 2010-12-02 2011-11-24 使用多点狄克逊技术的mr 成像 Active CN103229069B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10193467.7 2010-12-02
EP10193467A EP2461175A1 (en) 2010-12-02 2010-12-02 MR imaging using a multi-point Dixon technique
PCT/IB2011/055268 WO2012073159A2 (en) 2010-12-02 2011-11-24 Mr imaging using a multi-point dixon technique

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CN103229069A CN103229069A (zh) 2013-07-31
CN103229069B true CN103229069B (zh) 2016-03-16

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US (1) US9575153B2 (cg-RX-API-DMAC7.html)
EP (2) EP2461175A1 (cg-RX-API-DMAC7.html)
JP (1) JP6084573B2 (cg-RX-API-DMAC7.html)
CN (1) CN103229069B (cg-RX-API-DMAC7.html)
WO (1) WO2012073159A2 (cg-RX-API-DMAC7.html)

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CN104685368B (zh) * 2012-10-02 2017-09-05 皇家飞利浦有限公司 用于耐金属mr成像的方法和设备
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JP6763892B2 (ja) * 2015-06-26 2020-09-30 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 位相補正したディクソン磁気共鳴撮像
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CN108387857B (zh) * 2017-12-25 2020-11-10 深圳先进技术研究院 一种用于磁共振成像的局部匀场系统及匀场方法
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JP6084573B2 (ja) 2017-02-22
EP2461175A1 (en) 2012-06-06
EP2646843A2 (en) 2013-10-09
US9575153B2 (en) 2017-02-21
JP2014503249A (ja) 2014-02-13
CN103229069A (zh) 2013-07-31
EP2646843B1 (en) 2020-08-12
WO2012073159A2 (en) 2012-06-07
US20130249553A1 (en) 2013-09-26
WO2012073159A3 (en) 2012-07-26

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