KR102346911B1 - 자기 공명 이미징(mri) 시스템을 위한 전방 무선 주파수(rf) 코일 어레이 - Google Patents

자기 공명 이미징(mri) 시스템을 위한 전방 무선 주파수(rf) 코일 어레이 Download PDF

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KR102346911B1
KR102346911B1 KR1020197016045A KR20197016045A KR102346911B1 KR 102346911 B1 KR102346911 B1 KR 102346911B1 KR 1020197016045 A KR1020197016045 A KR 1020197016045A KR 20197016045 A KR20197016045 A KR 20197016045A KR 102346911 B1 KR102346911 B1 KR 102346911B1
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coil
coils
array
coil array
common mode
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KR20190096342A (ko
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나빌 말릭
마이클 클라크
콜맨 주하스
에드윈 아이젠브로트
로버트 스토몬트
스코트 린제이
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제너럴 일렉트릭 캄파니
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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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • 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
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34007—Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
    • 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
    • G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation
    • 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
    • G01R33/3628—Tuning/matching of the transmit/receive coil
    • 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
    • G01R33/3685—Means for reducing sheath currents, e.g. RF traps, baluns

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiology & Medical Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
KR1020197016045A 2016-11-23 2017-11-22 자기 공명 이미징(mri) 시스템을 위한 전방 무선 주파수(rf) 코일 어레이 Active KR102346911B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662426028P 2016-11-23 2016-11-23
US62/426,028 2016-11-23
PCT/US2017/063081 WO2018098331A1 (en) 2016-11-23 2017-11-22 An anterior radio frequency (rf) coil array for a magnetic resonance imaging (mri) system

Publications (2)

Publication Number Publication Date
KR20190096342A KR20190096342A (ko) 2019-08-19
KR102346911B1 true KR102346911B1 (ko) 2022-01-05

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US (1) US10921401B2 (enExample)
EP (1) EP3544500B1 (enExample)
JP (1) JP7073367B2 (enExample)
KR (1) KR102346911B1 (enExample)
CN (1) CN109963507B (enExample)
WO (1) WO2018098331A1 (enExample)

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EP4278200A4 (en) * 2021-01-15 2024-12-04 Hyperfine Operations, Inc. FLEXIBLE RADIOFREQUENCY COIL DEVICE AND MAGNETIC RESONANCE IMAGING METHODS
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US20230133077A1 (en) * 2021-10-29 2023-05-04 GE Precision Healthcare LLC Radio-frequency coil assemblies of a magnetic resonance system and assembling methods thereof
JP2024126931A (ja) 2023-03-08 2024-09-20 富士フイルム株式会社 コイルユニット及びそれを用いた磁気共鳴撮像装置
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US20250138115A1 (en) * 2023-10-25 2025-05-01 GE Precision Healthcare LLC Adaptive compression system for radio frequency coil assembly
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