JP6163553B2 - 高周波コイル及び磁気共鳴撮像装置 - Google Patents

高周波コイル及び磁気共鳴撮像装置 Download PDF

Info

Publication number
JP6163553B2
JP6163553B2 JP2015528258A JP2015528258A JP6163553B2 JP 6163553 B2 JP6163553 B2 JP 6163553B2 JP 2015528258 A JP2015528258 A JP 2015528258A JP 2015528258 A JP2015528258 A JP 2015528258A JP 6163553 B2 JP6163553 B2 JP 6163553B2
Authority
JP
Japan
Prior art keywords
frequency
coil
adjusting member
conductor
shield
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
JP2015528258A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2015012201A1 (ja
Inventor
浩二郎 岩澤
浩二郎 岩澤
悦久 五月女
悦久 五月女
陽介 大竹
陽介 大竹
久晃 越智
久晃 越智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Ltd filed Critical Hitachi Ltd
Publication of JPWO2015012201A1 publication Critical patent/JPWO2015012201A1/ja
Application granted granted Critical
Publication of JP6163553B2 publication Critical patent/JP6163553B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36Electric or magnetic shields or screens
    • H01F27/363Electric or magnetic shields or screens made of electrically conductive material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055Detecting, 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/345Constructional details, e.g. resonators, specially adapted to MR of waveguide type
    • G01R33/3453Transverse electromagnetic [TEM] coils
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3628Tuning/matching of the transmit/receive coil
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36Electric or magnetic shields or screens

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Electromagnetism (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2015528258A 2013-07-22 2014-07-17 高周波コイル及び磁気共鳴撮像装置 Active JP6163553B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013151970 2013-07-22
JP2013151970 2013-07-22
PCT/JP2014/069117 WO2015012201A1 (ja) 2013-07-22 2014-07-17 高周波コイル及び磁気共鳴撮像装置

Publications (2)

Publication Number Publication Date
JPWO2015012201A1 JPWO2015012201A1 (ja) 2017-03-02
JP6163553B2 true JP6163553B2 (ja) 2017-07-12

Family

ID=52393242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015528258A Active JP6163553B2 (ja) 2013-07-22 2014-07-17 高周波コイル及び磁気共鳴撮像装置

Country Status (3)

Country Link
JP (1) JP6163553B2 (zh)
CN (1) CN105208930B (zh)
WO (1) WO2015012201A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6293363B2 (ja) * 2015-03-16 2018-03-14 三菱電機エンジニアリング株式会社 共振型電力伝送システム及び共振器
US10324152B2 (en) * 2017-06-07 2019-06-18 Trustees Of Boston University Apparatus for improving magnetic resonance imaging
CN109959884A (zh) * 2017-12-26 2019-07-02 深圳先进技术研究院 一种用于磁共振成像的高介电常数衬垫结构
JP7539765B2 (ja) * 2019-10-31 2024-08-26 キヤノンメディカルシステムズ株式会社 コイルエレメント、局所コイル装置、及び磁気共鳴イメージング装置
CN112162224B (zh) * 2020-09-25 2022-06-17 中国科学院精密测量科学与技术创新研究院 一种高介电常数的超高场动物磁共振射频探头

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04170939A (ja) * 1990-11-05 1992-06-18 Hitachi Ltd 核磁気共鳴を用いた検査装置
JP2007511315A (ja) * 2003-11-18 2007-05-10 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Mri用のハイブリッドtem/バードケージコイル
CN101088020B (zh) * 2004-12-22 2010-12-01 皇家飞利浦电子股份有限公司 具有传输线端环的射频线圈
CN103037765B (zh) * 2010-02-26 2015-05-27 株式会社日立医疗器械 天线装置
WO2012023385A1 (ja) * 2010-08-17 2012-02-23 株式会社 日立メディコ 高周波コイルおよびそれを用いた磁気共鳴撮像装置
CN103649767B (zh) * 2011-07-04 2016-09-21 皇家飞利浦有限公司 具有多通道阻抗匹配网络的磁共振成像系统
CN204394509U (zh) * 2011-11-01 2015-06-17 株式会社日立医疗器械 磁共振成像装置以及天线装置

Also Published As

Publication number Publication date
JPWO2015012201A1 (ja) 2017-03-02
CN105208930A (zh) 2015-12-30
WO2015012201A1 (ja) 2015-01-29
CN105208930B (zh) 2018-04-27

Similar Documents

Publication Publication Date Title
JP5675921B2 (ja) 高周波コイルおよびそれを用いた磁気共鳴撮像装置
JP5685476B2 (ja) 磁気共鳴イメージング装置
JP6163553B2 (ja) 高周波コイル及び磁気共鳴撮像装置
RU2616649C2 (ru) Многорезонансная передающая/приемная антенна для генерирования mr-томограммы
US8193810B2 (en) MRI apparatus with RF surface coil having at least three resonance frequencies
JP5225472B2 (ja) 高周波コイルユニット及び磁気共鳴撮像装置
US6029082A (en) Less-claustrophobic, quadrature, radio-frequency head coil for nuclear magnetic resonance
JP6087834B2 (ja) 磁気共鳴イメージング装置およびアンテナ装置
US8948844B2 (en) Breast coil for magnetic resonance recordings of the breast
US9645206B2 (en) Birdcage-type high-frequency coil and magnetic resonance imaging apparatus
JP5600587B2 (ja) Rf場を発生するための方法及びrf送信装置
JP2007325826A (ja) 2重同調rfコイル
JP2015039636A (ja) 磁気共鳴コイル、磁気共鳴装置、磁気共鳴システムおよび磁気共鳴コイルの動作方法
WO2010150716A1 (ja) Rfコイル及び磁気共鳴イメージング装置
JP2019216879A (ja) アレイコイル及び磁気共鳴撮像装置
US9520636B2 (en) Linear resonator of a high-frequency antenna for a nuclear magnetic resonance imaging apparatus
US7619412B2 (en) MRI apparatus and high-frequency coil with plural imaging regions
US20100109667A1 (en) Transverse electromagnetic radio-frequency coil
JP4664525B2 (ja) 磁気共鳴撮像用コイルおよび磁気共鳴撮像装置
Ilić et al. RF excitation in 7 Tesla MRI systems using monofilar axial-mode helical antenna
JP6600601B2 (ja) 高周波アレイコイル及び磁気共鳴撮像装置
WO2011016398A1 (ja) 磁気共鳴計測装置
RU214274U1 (ru) Беспроводная радиочастотная катушка для магнитно-резонансной томографии молочных желез
JP2002052006A (ja) 核磁気共鳴映像装置用高周波コイル及び核磁気共鳴映像装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20161117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170404

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170425

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20170530

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20170619

R150 Certificate of patent or registration of utility model

Ref document number: 6163553

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350