WO2008108048A1 - Rf coil and magnetic resonance device employing it - Google Patents

Rf coil and magnetic resonance device employing it Download PDF

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Publication number
WO2008108048A1
WO2008108048A1 PCT/JP2007/074940 JP2007074940W WO2008108048A1 WO 2008108048 A1 WO2008108048 A1 WO 2008108048A1 JP 2007074940 W JP2007074940 W JP 2007074940W WO 2008108048 A1 WO2008108048 A1 WO 2008108048A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
ringlike
conductor
magnetic resonance
device employing
Prior art date
Application number
PCT/JP2007/074940
Other languages
French (fr)
Japanese (ja)
Inventor
Hisaaki Ochi
Yoshihisa Soutome
Yoshitaka Bito
Shinichiro Suzuki
Takahide Shimoda
Takeshi Taniguchi
Original Assignee
Hitachi Medical Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Medical Corporation filed Critical Hitachi Medical Corporation
Priority to JP2009502439A priority Critical patent/JP5001351B2/en
Publication of WO2008108048A1 publication Critical patent/WO2008108048A1/en

Links

Classifications

    • 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
    • G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised 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
    • G01R33/32—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
    • 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
    • G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

An irradiation coil generating an exciting RF pulse to be applied to an inspection object placed in a magnetostatic field at the time of generating the magnetostatic field in the vertical direction. At least one third ringlike conductor (intermediate ring) having a diameter between that of a first large diameter ringlike conductor and that of a second small diameter ringlike conductor is arranged in addition to the first and second ringlike conductors to obtain a planar bird cage coil. Diodes are arranged in the rung (inside rung) on the inside of the intermediate ring such that the inside rungs where the diode is not arranged are not spaced apart equally, thus obtaining an RF coil. A magnetic resonance device employing such RF coil is also provided.
PCT/JP2007/074940 2007-03-02 2007-12-26 Rf coil and magnetic resonance device employing it WO2008108048A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009502439A JP5001351B2 (en) 2007-03-02 2007-12-26 RF coil and magnetic resonance apparatus using the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007052167 2007-03-02
JP2007-052167 2007-03-02

Publications (1)

Publication Number Publication Date
WO2008108048A1 true WO2008108048A1 (en) 2008-09-12

Family

ID=39737947

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074940 WO2008108048A1 (en) 2007-03-02 2007-12-26 Rf coil and magnetic resonance device employing it

Country Status (2)

Country Link
JP (1) JP5001351B2 (en)
WO (1) WO2008108048A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009022562A (en) * 2007-07-20 2009-02-05 Hitachi Medical Corp High frequency coil for magnetic resonance imaging device and magnetic resonance imaging device using the same
CN106950520A (en) * 2017-05-20 2017-07-14 深圳市金石医疗科技有限公司 The birdcage array coil and its control circuit of internal loopback

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102297057B1 (en) * 2019-06-17 2021-09-06 가천대학교 산학협력단 Mono-dipole hybrid array antenna rf coil for magnetic resonance imaging
KR102226303B1 (en) * 2019-08-29 2021-03-11 가천대학교 산학협력단 High-pass spoke coil for parallel MRI, and multi-channel array RF coil utilizing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002041020A2 (en) * 2000-11-16 2002-05-23 Koninklijke Philips Electronics N.V. Rf surface resonator for a magnetic resonance imaging apparatus
JP2002224082A (en) * 2001-01-30 2002-08-13 Hitachi Medical Corp Magnetic resonance imaging device
JP2003180653A (en) * 2001-12-14 2003-07-02 Hitachi Medical Corp Flat bird cage radiation coil for magnetic resonance imaging system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002041020A2 (en) * 2000-11-16 2002-05-23 Koninklijke Philips Electronics N.V. Rf surface resonator for a magnetic resonance imaging apparatus
JP2002224082A (en) * 2001-01-30 2002-08-13 Hitachi Medical Corp Magnetic resonance imaging device
JP2003180653A (en) * 2001-12-14 2003-07-02 Hitachi Medical Corp Flat bird cage radiation coil for magnetic resonance imaging system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009022562A (en) * 2007-07-20 2009-02-05 Hitachi Medical Corp High frequency coil for magnetic resonance imaging device and magnetic resonance imaging device using the same
CN106950520A (en) * 2017-05-20 2017-07-14 深圳市金石医疗科技有限公司 The birdcage array coil and its control circuit of internal loopback
WO2018214651A1 (en) * 2017-05-20 2018-11-29 深圳市金石医疗科技有限公司 Self-transmitting and self-receiving birdcage array coil and control circuit therefor
CN106950520B (en) * 2017-05-20 2020-06-26 深圳市金石医疗科技有限公司 Self-generating and self-receiving birdcage array coil and control circuit thereof

Also Published As

Publication number Publication date
JP5001351B2 (en) 2012-08-15
JPWO2008108048A1 (en) 2010-06-10

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