JP3781166B2 - 磁気共鳴イメージング装置および静磁場均一度維持方法 - Google Patents

磁気共鳴イメージング装置および静磁場均一度維持方法 Download PDF

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JP3781166B2
JP3781166B2 JP35728399A JP35728399A JP3781166B2 JP 3781166 B2 JP3781166 B2 JP 3781166B2 JP 35728399 A JP35728399 A JP 35728399A JP 35728399 A JP35728399 A JP 35728399A JP 3781166 B2 JP3781166 B2 JP 3781166B2
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magnetic field
temperature
shim
static
generating
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JP35728399A
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Japanese (ja)
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JP2000342554A (ja
JP2000342554A5 (enExample
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宗孝 津田
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Hitachi Healthcare Manufacturing Ltd
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Hitachi Medical Corp
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Priority to JP35728399A priority Critical patent/JP3781166B2/ja
Priority to US09/535,241 priority patent/US6825667B1/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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP35728399A 1999-03-26 1999-12-16 磁気共鳴イメージング装置および静磁場均一度維持方法 Expired - Fee Related JP3781166B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP35728399A JP3781166B2 (ja) 1999-03-26 1999-12-16 磁気共鳴イメージング装置および静磁場均一度維持方法
US09/535,241 US6825667B1 (en) 1999-03-26 2000-03-27 Magnetic resonance imaging apparatus and method for maintaining high uniformity of magnetic field in magnetic resonance imaging apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11-83744 1999-03-26
JP8374499 1999-03-26
JP35728399A JP3781166B2 (ja) 1999-03-26 1999-12-16 磁気共鳴イメージング装置および静磁場均一度維持方法

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JP2005293675A Division JP4067546B2 (ja) 1999-03-26 2005-10-06 磁気共鳴イメージング装置および静磁場均一度維持方法

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JP2000342554A JP2000342554A (ja) 2000-12-12
JP2000342554A5 JP2000342554A5 (enExample) 2005-06-30
JP3781166B2 true JP3781166B2 (ja) 2006-05-31

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US (1) US6825667B1 (enExample)
JP (1) JP3781166B2 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040014236A1 (en) * 2002-07-22 2004-01-22 Dror Albo Frequency feedback for NMR magnet temperature control
US6788060B1 (en) * 2003-05-28 2004-09-07 Ge Medical Systems Global Technology Co., Inc. Imaging system with homogeneous magnetic field
US7246939B1 (en) * 2003-10-23 2007-07-24 Gultekin David H Measurement of thermal diffusivity, thermal conductivity, specific heat, specific absorption rate, thermal power, heat transfer coefficient, heat of reaction and membrane permeability by nuclear magnetic resonance
US7215123B2 (en) * 2004-05-05 2007-05-08 New York University Method, system storage medium and software arrangement for homogenizing a magnetic field in a magnetic resonance imaging system
JP4118844B2 (ja) * 2004-07-26 2008-07-16 株式会社日立製作所 Ｎｍｒ磁場安定化装置および方法
EP1998847B1 (en) * 2006-03-24 2013-02-13 Medtronic, Inc. Implantable medical device
US7741847B2 (en) * 2006-10-13 2010-06-22 Kabushiki Kaisha Toshiba Magnetic resonance apparatus with temperature controlled magnet shim pieces
JP5060151B2 (ja) * 2007-04-10 2012-10-31 株式会社日立製作所 磁場均一度調整装置、およびこれを用いた超伝導磁石装置、並びに磁気共鳴撮像装置
US20090206839A1 (en) * 2008-02-20 2009-08-20 General Electric Company System, method and apparatus for compensating for drift in a main magnetic field in an mri system
JP5170540B2 (ja) * 2008-04-24 2013-03-27 株式会社日立メディコ 磁気共鳴イメージング装置
JP5453155B2 (ja) * 2009-03-31 2014-03-26 株式会社東芝 Ｍｒｉ装置
US9289154B2 (en) 2009-08-19 2016-03-22 Insightec Ltd. Techniques for temperature measurement and corrections in long-term magnetic resonance thermometry
US20110046475A1 (en) * 2009-08-24 2011-02-24 Benny Assif Techniques for correcting temperature measurement in magnetic resonance thermometry
US8368401B2 (en) 2009-11-10 2013-02-05 Insightec Ltd. Techniques for correcting measurement artifacts in magnetic resonance thermometry
JP6184050B2 (ja) * 2010-07-02 2017-08-23 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
DE102013210237B4 (de) * 2013-06-03 2016-12-29 Siemens Healthcare Gmbh Verfahren zum Betreiben eines mobilen Magnetresonanztomographiesystems
DE102016208018A1 (de) * 2016-05-10 2017-11-16 Siemens Healthcare Gmbh Verfahren zu einem Bereitstellen einer Anwendungsinformation für eine Magnetresonanzuntersuchung an einem Patienten sowie eine Magnetresonanzvorrichtung
US20200355768A1 (en) * 2019-05-10 2020-11-12 Geron BINDSEIL Coil system with different currents driven through the shield and primary coils
JP7539255B2 (ja) 2020-05-21 2024-08-23 富士フイルムヘルスケア株式会社 磁気共鳴撮像装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110714U (ja) * 1984-06-27 1986-01-22 横河電機株式会社 Ｎｍｒ画像装置
GB8808334D0 (en) * 1988-04-08 1988-05-11 Magnex Scient Ltd Electromagnets
JP3160351B2 (ja) * 1992-03-13 2001-04-25 株式会社東芝 磁気共鳴診断装置
JPH11225991A (ja) * 1998-02-19 1999-08-24 Toshiba Corp 体温監視装置及び体温監視方法
US6252405B1 (en) * 1999-11-15 2001-06-26 General Electric Company Temperature compensated NMR magnet and method of operation therefor

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US6825667B1 (en) 2004-11-30

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