JP6584767B2 - 磁気共鳴イメージング装置 - Google Patents

磁気共鳴イメージング装置 Download PDF

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Publication number
JP6584767B2
JP6584767B2 JP2014239614A JP2014239614A JP6584767B2 JP 6584767 B2 JP6584767 B2 JP 6584767B2 JP 2014239614 A JP2014239614 A JP 2014239614A JP 2014239614 A JP2014239614 A JP 2014239614A JP 6584767 B2 JP6584767 B2 JP 6584767B2
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Prior art keywords
coil
signal
element coils
unit
wireless
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Japanese (ja)
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JP2016101202A5 (enExample
JP2016101202A (ja
Inventor
岡本　和也
和也 岡本
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Canon Medical Systems Corp
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Canon Medical Systems Corp
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Priority to JP2014239614A priority Critical patent/JP6584767B2/ja
Priority to US14/948,794 priority patent/US10295625B2/en
Publication of JP2016101202A publication Critical patent/JP2016101202A/ja
Publication of JP2016101202A5 publication Critical patent/JP2016101202A5/ja
Priority to US16/372,995 priority patent/US10670674B2/en
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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
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3664—Switching for purposes other than coil coupling or decoupling, e.g. switching between a phased array mode and a quadrature mode, switching between surface coil modes of different geometrical shapes, switching from a whole body reception coil to a local reception coil or switching for automatic coil selection in moving table MR or for changing the field-of-view
    • 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
    • G01R33/3692—Electrical details, e.g. matching or coupling of the coil to the receiver involving signal transmission without using electrically conductive connections, e.g. wireless communication or optical communication of the MR signal or an auxiliary signal other than the MR 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
    • G01R33/44—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
    • G01R33/34—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

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2014239614A 2014-11-27 2014-11-27 磁気共鳴イメージング装置 Active JP6584767B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2014239614A JP6584767B2 (ja) 2014-11-27 2014-11-27 磁気共鳴イメージング装置
US14/948,794 US10295625B2 (en) 2014-11-27 2015-11-23 Magnetic resonance imaging apparatus
US16/372,995 US10670674B2 (en) 2014-11-27 2019-04-02 Magnetic resonance imaging apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014239614A JP6584767B2 (ja) 2014-11-27 2014-11-27 磁気共鳴イメージング装置

Publications (3)

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JP2016101202A JP2016101202A (ja) 2016-06-02
JP2016101202A5 JP2016101202A5 (enExample) 2017-12-21
JP6584767B2 true JP6584767B2 (ja) 2019-10-02

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JP2014239614A Active JP6584767B2 (ja) 2014-11-27 2014-11-27 磁気共鳴イメージング装置

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US (2) US10295625B2 (enExample)
JP (1) JP6584767B2 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5944650B2 (ja) * 2011-11-11 2016-07-05 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置
JP6021652B2 (ja) * 2013-01-16 2016-11-09 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置、及び、ｒｆコイル装置
JP6391911B2 (ja) 2013-01-23 2018-09-19 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置、及び、ｒｆコイル装置
CN109714143B (zh) * 2017-10-26 2021-12-31 通用电气公司 基于无线或有限线缆互联的同步系统和方法及mr系统
US10983185B2 (en) * 2017-11-22 2021-04-20 General Electric Company RF coil array for an MRI system
US11454685B2 (en) * 2017-11-27 2022-09-27 Koninklijke Philips N.V. Mesh networks in wireless MRI RF coil
US10845439B2 (en) 2018-03-28 2020-11-24 Canon Medical Systems Corporation Magnetic resonance imaging apparatus using positional information based on an image obtained by reconstructing a magnetic resonance signal
JP7624315B2 (ja) * 2021-01-15 2025-01-30 キヤノンメディカルシステムズ株式会社 画像処理装置、磁気共鳴イメージング装置、及び画像処理システム

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2572218B2 (ja) * 1986-12-26 1997-01-16 株式会社日立メディコ 核磁気共鳴を用いた検査装置
JPH08266510A (ja) * 1995-03-31 1996-10-15 Shimadzu Corp Ｍｒイメージング装置
US6946836B2 (en) 2000-04-25 2005-09-20 Kabushiki Kaisha Toshiba Magnetic resonance imaging involving movement of patient's couch
DE10130071A1 (de) * 2001-06-21 2003-02-13 Philips Corp Intellectual Pty MR-Verfahren und MR-Anordnung mit Mitteln zur Korrektur von Positions- und/oder Lageänderungen von Spulen
JP3842612B2 (ja) * 2001-10-29 2006-11-08 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 磁気共鳴撮像装置
EP1658510A1 (en) * 2003-07-25 2006-05-24 Koninklijke Philips Electronics N.V. Automated positioning of mri surface coils
US7714576B2 (en) 2004-08-05 2010-05-11 Koninklijke Philips Electronics N.V. Automatic selection of a receiver element in an MRI apparatus
DE102006007769A1 (de) * 2006-02-20 2007-08-30 Siemens Ag Verfahren zur Erzeugung von Magnetresonanzaufnahmen und Steuereinrichtung für ein Magnetresonanzsystem
DE102007010047A1 (de) * 2007-03-01 2008-09-11 Siemens Ag Verfahren und Steuereinrichtung zur Positionsbestimmung von Empfangsvorrichtungen für eine Magnetresonanzanlage
US7619415B2 (en) * 2007-04-06 2009-11-17 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus, RF coil system, and magnetic resonance imaging method
JP5203730B2 (ja) * 2008-01-28 2013-06-05 株式会社東芝 磁気共鳴診断装置
DE102008064105A1 (de) * 2008-12-19 2010-07-08 Siemens Aktiengesellschaft Vorrichtung zur Positionsbestimmung von wenigstens einer an einer Patientenliege einer Magnetresonanzeinrichtung angeordneten oder anzuordnenden Lokalspule, Magnetresonanzanlage mit einer solchen Vorrichtung und zugehöriges Verfahren
DE102009004183B4 (de) * 2009-01-09 2012-10-18 Siemens Aktiengesellschaft Magnetresonanztomographie-Vorrichtung mit Lokalisierungssystem und Verfahren zum Lokalisieren einer Lokalspule
DE102009004448B4 (de) * 2009-01-13 2012-05-24 Siemens Aktiengesellschaft Spulenpositionserkennung
JP5508910B2 (ja) 2009-04-10 2014-06-04 株式会社東芝 磁気共鳴イメージング装置
JP5687419B2 (ja) * 2009-08-12 2015-03-18 株式会社日立メディコ 磁気共鳴イメージング装置
JP2012061306A (ja) 2010-08-16 2012-03-29 Toshiba Corp 磁気共鳴イメージング装置
JP6073606B2 (ja) 2012-09-03 2017-02-01 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置、及び、デジタル無線通信装置
US10564236B2 (en) * 2012-11-28 2020-02-18 Toshiba Medical Systems Corporation Magnetic resonance imaging apparatus and guiding method of coil selection in magnetic resonance imaging method
DE102013206055A1 (de) * 2013-04-05 2014-10-09 Siemens Aktiengesellschaft Verfahren und Lokalspulensystem zur Erzeugung eines Magnetresonanz-Hochfrequenz-Feldes
US9517021B2 (en) * 2013-09-23 2016-12-13 Toshiba Medical Systems Corporation Communicating between MRI control system and RF coils

Also Published As

Publication number Publication date
US10670674B2 (en) 2020-06-02
JP2016101202A (ja) 2016-06-02
US20160154074A1 (en) 2016-06-02
US20190227135A1 (en) 2019-07-25
US10295625B2 (en) 2019-05-21

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