CN100435725C - 用于视图梯度线圈的复合场的方法和设备 - Google Patents

用于视图梯度线圈的复合场的方法和设备 Download PDF

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Publication number
CN100435725C
CN100435725C CNB2004101047393A CN200410104739A CN100435725C CN 100435725 C CN100435725 C CN 100435725C CN B2004101047393 A CNB2004101047393 A CN B2004101047393A CN 200410104739 A CN200410104739 A CN 200410104739A CN 100435725 C CN100435725 C CN 100435725C
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China
Prior art keywords
coil
current density
radius
imaging
electric current
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Expired - Fee Related
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CNB2004101047393A
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English (en)
Chinese (zh)
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CN1647755A (zh
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G·C·麦金农
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GE Medical Systems Global Technology Co LLC
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GE Medical Systems Global Technology Co LLC
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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
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CNB2004101047393A 2003-11-26 2004-11-26 用于视图梯度线圈的复合场的方法和设备 Expired - Fee Related CN100435725C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/722975 2003-11-26
US10/722,975 US6975116B2 (en) 2003-11-26 2003-11-26 Method and apparatus for multiple field of view gradient coils

Publications (2)

Publication Number Publication Date
CN1647755A CN1647755A (zh) 2005-08-03
CN100435725C true CN100435725C (zh) 2008-11-26

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CNB2004101047393A Expired - Fee Related CN100435725C (zh) 2003-11-26 2004-11-26 用于视图梯度线圈的复合场的方法和设备

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US (1) US6975116B2 (enExample)
JP (1) JP4753570B2 (enExample)
CN (1) CN100435725C (enExample)
DE (1) DE102004057028A1 (enExample)
GB (1) GB2408583B (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7468644B2 (en) * 2004-11-05 2008-12-23 New York University Gradient coil arrangement and method for using the same
GB2448479B (en) * 2007-04-18 2009-06-03 Siemens Magnet Technology Ltd Improved shim for imaging magnets
US8063638B2 (en) * 2009-03-31 2011-11-22 General Electric Company Liquid dielectric gradient coil system and method
US10989775B2 (en) * 2017-11-08 2021-04-27 Canon Medical Systems Corporation Magnetic resonance imaging apparatus for supplying power to gradient coils

Citations (4)

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CN1085767A (zh) * 1992-10-22 1994-04-27 广东威达医疗器械集团公司 均匀磁场装置
US5311135A (en) * 1992-12-11 1994-05-10 General Electric Company Multiple tap gradient field coil for magnetic resonance imaging
US5406205A (en) * 1989-11-08 1995-04-11 Bruker Analytische Messtechnik Gmbh Gradient-generation system, nuclear spin tomograph, and process for the generation of images with a nuclear-spin tomograph
US6515479B1 (en) * 1999-03-23 2003-02-04 Siemens Aktiengesellschaft Switchable longitudinal gradient coil

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US5382904A (en) 1992-04-15 1995-01-17 Houston Advanced Research Center Structured coil electromagnets for magnetic resonance imaging and method for fabricating the same
JPH0678896A (ja) * 1992-09-02 1994-03-22 Toshiba Corp 磁気共鳴イメージング装置
US5378988A (en) 1993-01-22 1995-01-03 Pulyer; Yuly M. MRI system having high field strength open access magnet
US5633587A (en) 1995-02-14 1997-05-27 Kabushiki Kaisha Toshiba Magnetostatic field generating magnet for use in an MRI system having an active magnetic shield
JP3143371B2 (ja) 1995-09-19 2001-03-07 信越化学工業株式会社 磁気共鳴イメージング装置
US5713359A (en) 1995-10-02 1998-02-03 General Electric Company Magnetic resonance (MR) perfusion imaging in a low-field imaging magnet
EP0797103B1 (de) 1996-03-28 1999-06-02 Siemens Aktiengesellschaft Magnetanordnung für die bildgebende magnetische Resonanz mit zwei getrennten Abbildungsvolumina
US5696449A (en) 1996-06-03 1997-12-09 General Electric Company RF coil for open MR magnet
US6150911A (en) 1996-07-24 2000-11-21 Odin Technologies Ltd. Yoked permanent magnet assemblies for use in medical applications
US6249120B1 (en) 1998-07-22 2001-06-19 General Electric Company Modular timemasking sequence programming for imaging system
JP4191840B2 (ja) * 1999-02-15 2008-12-03 株式会社東芝 傾斜磁場コイル装置
DE19917058C1 (de) * 1999-04-15 2000-10-19 Siemens Ag Schaltbare Gradientenspule auf der Basis von Sattelspulen
US6252405B1 (en) 1999-11-15 2001-06-26 General Electric Company Temperature compensated NMR magnet and method of operation therefor
US6538443B2 (en) * 2001-03-20 2003-03-25 Koninklijke Philips Electronics N.V. MRI gradient coil with variable field of view and apparatus and methods employing the same
JP2002291716A (ja) * 2001-03-30 2002-10-08 Hitachi Medical Corp 高次エンコーデイング傾斜磁場コイルを備えた磁気共鳴イメージング装置
US6479999B1 (en) 2001-06-05 2002-11-12 Koninklijke Philips Electronics N.V. Efficiently shielded MRI gradient coil with discretely or continuously variable field of view
US6703835B2 (en) 2002-04-11 2004-03-09 Ge Medical Systems Global Technology Co. Llc System and method for unwrapping phase difference images
US6630829B1 (en) 2002-04-22 2003-10-07 Ge Medical Systems Global Technology Co., Llc Gradient coil set capable of producing a variable field of view
US6680612B1 (en) * 2002-10-16 2004-01-20 Ge Medical Systems Global Technology Company, Llc Gradient coil apparatus for magnetic resonance imaging
US20040075434A1 (en) 2002-10-16 2004-04-22 Vavrek Robert Michael Gradient coil apparatus for magnetic resonance imaging
AU2003272029A1 (en) * 2002-11-20 2004-06-15 Koninklijke Philips Electronics N.V. Self-shielded gradient field coil for magnetic resonance imaging
WO2005043185A1 (en) * 2003-10-29 2005-05-12 Koninklijke Philips Electronics N.V. Variable field-of-view gradient coil system for magnetic resonance imaging

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406205A (en) * 1989-11-08 1995-04-11 Bruker Analytische Messtechnik Gmbh Gradient-generation system, nuclear spin tomograph, and process for the generation of images with a nuclear-spin tomograph
CN1085767A (zh) * 1992-10-22 1994-04-27 广东威达医疗器械集团公司 均匀磁场装置
US5311135A (en) * 1992-12-11 1994-05-10 General Electric Company Multiple tap gradient field coil for magnetic resonance imaging
US6515479B1 (en) * 1999-03-23 2003-02-04 Siemens Aktiengesellschaft Switchable longitudinal gradient coil

Also Published As

Publication number Publication date
JP2005199043A (ja) 2005-07-28
GB0425839D0 (en) 2004-12-29
GB2408583A (en) 2005-06-01
CN1647755A (zh) 2005-08-03
JP4753570B2 (ja) 2011-08-24
US20050110486A1 (en) 2005-05-26
GB2408583B (en) 2007-03-28
US6975116B2 (en) 2005-12-13
DE102004057028A1 (de) 2005-06-23

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