CN106164694B - 具有rf噪声检测线圈的磁共振成像 - Google Patents

具有rf噪声检测线圈的磁共振成像 Download PDF

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Publication number
CN106164694B
CN106164694B CN201580017578.0A CN201580017578A CN106164694B CN 106164694 B CN106164694 B CN 106164694B CN 201580017578 A CN201580017578 A CN 201580017578A CN 106164694 B CN106164694 B CN 106164694B
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data
noise
magnetic resonance
imaging
calibration
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CN106164694A (zh
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P·R·哈维
M·J·杜伊维斯蒂恩
S·洛伦茨
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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
    • G01R33/54—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
    • G01R33/5659—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the RF magnetic field, e.g. spatial inhomogeneities of the RF 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3607—RF waveform generators, e.g. frequency generators, amplitude-, frequency- or phase modulators or shifters, pulse programmers, digital to analog converters for the RF signal, means for filtering or attenuating of the RF signal
    • 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
    • G01R33/42—Screening
    • G01R33/422—Screening of the radio frequency 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
    • G01R33/58—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

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Epidemiology (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)
CN201580017578.0A 2014-03-31 2015-03-26 具有rf噪声检测线圈的磁共振成像 Active CN106164694B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP14162602 2014-03-31
EP14162602.8 2014-03-31
PCT/EP2015/056618 WO2015150236A1 (en) 2014-03-31 2015-03-26 Magnetic resonance imaging with rf noise detection coils

Publications (2)

Publication Number Publication Date
CN106164694A CN106164694A (zh) 2016-11-23
CN106164694B true CN106164694B (zh) 2019-07-02

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US (1) US10317502B2 (enExample)
EP (1) EP3126861B1 (enExample)
JP (1) JP6688740B2 (enExample)
CN (1) CN106164694B (enExample)
RU (1) RU2685057C2 (enExample)
WO (1) WO2015150236A1 (enExample)

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Also Published As

Publication number Publication date
RU2016142240A (ru) 2018-05-07
US10317502B2 (en) 2019-06-11
JP6688740B2 (ja) 2020-04-28
JP2017515532A (ja) 2017-06-15
EP3126861A1 (en) 2017-02-08
RU2016142240A3 (enExample) 2018-10-23
WO2015150236A1 (en) 2015-10-08
CN106164694A (zh) 2016-11-23
RU2685057C2 (ru) 2019-04-16
US20170108569A1 (en) 2017-04-20
EP3126861B1 (en) 2023-10-18

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