WO2009028436A1 - オープン型ｍｒｉ装置及びオープン型超電導ｍｒｉ装置 - Google Patents

オープン型ｍｒｉ装置及びオープン型超電導ｍｒｉ装置 Download PDF

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Publication number
WO2009028436A1
WO2009028436A1 PCT/JP2008/065070 JP2008065070W WO2009028436A1 WO 2009028436 A1 WO2009028436 A1 WO 2009028436A1 JP 2008065070 W JP2008065070 W JP 2008065070W WO 2009028436 A1 WO2009028436 A1 WO 2009028436A1
Authority
WO
WIPO (PCT)
Prior art keywords
mri device
generating means
field generating
magnetostatic field
open
Prior art date
Application number
PCT/JP2008/065070
Other languages
English (en)
French (fr)
Inventor
Munetaka Tsuda
Kenji Sakakibara
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 JP2009530095A priority Critical patent/JP5243437B2/ja
Priority to US12/673,372 priority patent/US8466681B2/en
Publication of WO2009028436A1 publication Critical patent/WO2009028436A1/ja

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Classifications

    • 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
    • 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
    • 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
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
    • G01R33/3854—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils means for active and/or passive vibration damping or acoustical noise suppression in gradient magnet coil systems
    • 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
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

　被検体を撮像する空間を挟んで対向配置された一対の静磁場発生手段と、前記一対の静磁場発生手段を所定間隔をもって保持する静磁場発生手段保持手段と、前記静磁場発生手段の撮像空間側に配置された一対の平板状傾斜磁場コイル構造体とを有したオープン型MRI装置において、 　前記各平板状傾斜磁場コイル構造体は、傾斜磁場コイルへ駆動電流を流したときにコイル導線へ作用するローレンツ力によって傾斜磁場コイル構造体へ発生する変形を抑制する複数の位置においてそれぞれが対向する前記静磁場発生手段へ固定されていることを特徴とするオープン型MRI装置が提供される。
PCT/JP2008/065070 2007-08-30 2008-08-25 オープン型ｍｒｉ装置及びオープン型超電導ｍｒｉ装置 WO2009028436A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009530095A JP5243437B2 (ja) 2007-08-30 2008-08-25 オープン型ｍｒｉ装置及びオープン型超電導ｍｒｉ装置
US12/673,372 US8466681B2 (en) 2007-08-30 2008-08-25 Open-type MRI apparatus, and open-type superconducting MRI apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007223726 2007-08-30
JP2007-223726 2007-08-30

Publications (1)

Publication Number Publication Date
WO2009028436A1 true WO2009028436A1 (ja) 2009-03-05

Family

ID=40387156

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065070 WO2009028436A1 (ja) 2007-08-30 2008-08-25 オープン型ｍｒｉ装置及びオープン型超電導ｍｒｉ装置

Country Status (3)

Country Link
US (1) US8466681B2 (ja)
JP (1) JP5243437B2 (ja)
WO (1) WO2009028436A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101788655A (zh) * 2009-01-24 2010-07-28 Ge医疗系统环球技术有限公司 磁共振成像系统以及使该系统中主磁体的温度稳定的方法
DE102011089445B4 (de) * 2011-12-21 2015-11-05 Siemens Aktiengesellschaft Verfahren und Gradientensystem zur Reduzierung von mechanischen Schwingungen in einem Magnetresonanzbildgebungssystem
EP3047292B1 (en) * 2013-09-17 2021-06-30 Synaptive Medical Inc. Coil assembly for magnetic resonance imaging
JP6296576B2 (ja) * 2014-05-08 2018-03-20 株式会社日立製作所 磁気共鳴イメージング装置
MX2017002937A (es) 2014-09-05 2017-10-04 Hyperfine Res Inc Metodos y aparatos de formación de imágenes por resonancia magnética de campo bajo.
US10813564B2 (en) 2014-11-11 2020-10-27 Hyperfine Research, Inc. Low field magnetic resonance methods and apparatus
EP3289973A1 (en) * 2016-09-05 2018-03-07 Medical Intelligence Medizintechnik GmbH Patient positioning apparatus
US10539637B2 (en) 2016-11-22 2020-01-21 Hyperfine Research, Inc. Portable magnetic resonance imaging methods and apparatus
US10627464B2 (en) 2016-11-22 2020-04-21 Hyperfine Research, Inc. Low-field magnetic resonance imaging methods and apparatus
JP7076339B2 (ja) 2018-09-04 2022-05-27 富士フイルムヘルスケア株式会社 磁気共鳴イメージング装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001149334A (ja) * 1999-11-26 2001-06-05 Hitachi Medical Corp 磁気共鳴イメージング装置用磁場発生装置
WO2005037101A1 (ja) * 2003-10-15 2005-04-28 Hitachi Medical Corporation 磁気共鳴イメージング装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3144791B2 (ja) 1990-08-24 2001-03-12 株式会社東芝 磁気共鳴画像診断装置
JPH10155762A (ja) 1996-11-29 1998-06-16 Shimadzu Corp 磁気共鳴断層撮影装置
US6933722B2 (en) * 2000-07-05 2005-08-23 Hitachi Medical Corporation Magnetic resonance imaging device and gradient magnetic field coil used for it
GB2384314B (en) * 2002-01-21 2005-09-14 Oxford Magnet Tech A mounting scheme for NMR gradient magnet coils
JP4105642B2 (ja) 2003-01-10 2008-06-25 アクシュネット カンパニー ゴルフボール用のポリウレタン組成物
JP2004329716A (ja) * 2003-05-12 2004-11-25 Mitsubishi Electric Corp 静磁場発生装置および磁気共鳴イメージング装置
JP2006000247A (ja) 2004-06-16 2006-01-05 Hitachi Medical Corp 磁気共鳴イメージング装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001149334A (ja) * 1999-11-26 2001-06-05 Hitachi Medical Corp 磁気共鳴イメージング装置用磁場発生装置
WO2005037101A1 (ja) * 2003-10-15 2005-04-28 Hitachi Medical Corporation 磁気共鳴イメージング装置

Also Published As

Publication number Publication date
JPWO2009028436A1 (ja) 2010-12-02
US8466681B2 (en) 2013-06-18
US20110199086A1 (en) 2011-08-18
JP5243437B2 (ja) 2013-07-24

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