JP4584374B2 - Mri装置およびフェ―ズド・アレイ表面コイルの選択的駆動方法 - Google Patents

Mri装置およびフェ―ズド・アレイ表面コイルの選択的駆動方法 Download PDF

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JP4584374B2
JP4584374B2 JP16458099A JP16458099A JP4584374B2 JP 4584374 B2 JP4584374 B2 JP 4584374B2 JP 16458099 A JP16458099 A JP 16458099A JP 16458099 A JP16458099 A JP 16458099A JP 4584374 B2 JP4584374 B2 JP 4584374B2
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coil
phased array
boundaries
isocenter
coil element
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Japanese (ja)
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JP2000083923A5 (enExample
JP2000083923A (ja
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ペリー・スコット・フレデリック
ジョン・アンドリュー・ジョンソン
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General Electric Co
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General Electric Co
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    • 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
    • G01R33/341Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415Constructional 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
    • 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
    • G01R33/3664Switching 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

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP16458099A 1998-06-12 1999-06-11 Mri装置およびフェ―ズド・アレイ表面コイルの選択的駆動方法 Expired - Fee Related JP4584374B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/096,902 US6134465A (en) 1998-06-12 1998-06-12 Method for reducing artifacts in MR image acquired with phased array surface coil
US09/096902 1998-06-12

Publications (3)

Publication Number Publication Date
JP2000083923A JP2000083923A (ja) 2000-03-28
JP2000083923A5 JP2000083923A5 (enExample) 2008-09-04
JP4584374B2 true JP4584374B2 (ja) 2010-11-17

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JP16458099A Expired - Fee Related JP4584374B2 (ja) 1998-06-12 1999-06-11 Mri装置およびフェ―ズド・アレイ表面コイルの選択的駆動方法

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Country Link
US (1) US6134465A (enExample)
JP (1) JP4584374B2 (enExample)
DE (1) DE19926491A1 (enExample)
IL (1) IL130252A0 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010045832A1 (en) * 1997-11-26 2001-11-29 Kenneth W. Belt Peripheral vascular array
JP2001198100A (ja) * 2000-01-20 2001-07-24 Ge Medical Systems Global Technology Co Llc Mrデータ収集方法、mr画像表示方法およびmri装置
DE10003712C2 (de) * 2000-01-28 2002-12-12 Siemens Ag Verfahren zur Selektion einer Lokalantenne
US6946836B2 (en) * 2000-04-25 2005-09-20 Kabushiki Kaisha Toshiba Magnetic resonance imaging involving movement of patient's couch
US6738501B2 (en) * 2001-04-13 2004-05-18 Ge Medical Systems Global Technology Co., Llc Adaptive data differentiation and selection from multi-coil receiver to reduce artifacts in reconstruction
US6724923B2 (en) * 2001-04-13 2004-04-20 Ge Medical Systems Global Technology Co., Llc Automatic coil selection of multi-receiver MR data using fast prescan data analysis
US7894876B2 (en) * 2004-02-02 2011-02-22 Siemens Medical Solutions, Inc. Combined MR-optical coil for prostate, cervix and rectum cancer imaging diagnostics
WO2006016292A1 (en) * 2004-08-05 2006-02-16 Koninklijke Philips Electronics N.V. Automatic selection of a receiver element in an mri apparatus
JP2006175058A (ja) * 2004-12-22 2006-07-06 Ge Medical Systems Global Technology Co Llc コイルエレメント選択方法および磁気共鳴イメージング装置
CN101473239A (zh) * 2006-06-22 2009-07-01 皇家飞利浦电子股份有限公司 集成在扫描器孔壁上的磁共振接收线圈阵列
US8847594B2 (en) 2009-04-14 2014-09-30 The Board Of Trustees Of The University Of Illinois Method for reducing artifacts in magnetic resonance imaging
JP6407620B2 (ja) * 2014-08-11 2018-10-17 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
DE102015202793A1 (de) * 2015-02-17 2016-08-18 Siemens Healthcare Gmbh Anschließen von Spulen an ein MR-Gerät
DE102015202795B4 (de) * 2015-02-17 2018-11-22 Siemens Healthcare Gmbh Anschließen von Spulen an ein MR-Gerät
US10390725B2 (en) 2015-02-17 2019-08-27 Siemens Aktiengesellschaft Connection of coils to an MR device
JP2017046796A (ja) * 2015-08-31 2017-03-09 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
CN105476635B (zh) * 2015-12-29 2019-02-05 沈阳东软医疗系统有限公司 一种核磁共振成像系统中射频线圈的定位方法和装置
CN108303674A (zh) * 2018-01-03 2018-07-20 上海东软医疗科技有限公司 磁共振成像系统接收线圈的定位方法及装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US924868A (en) * 1908-02-17 1909-06-15 Winfield Mfg Company Electric-welding machine.
JPH0435645A (ja) * 1990-05-31 1992-02-06 Toshiba Corp 磁気共鳴イメージング装置
JP3110741B2 (ja) * 1990-07-18 2000-11-20 株式会社東芝 磁気共鳴イメージング装置
US5138260A (en) * 1990-11-21 1992-08-11 Picker International, Inc. Computer controlled switching of multiple rf coils
US5399970A (en) * 1993-08-11 1995-03-21 Board Of Trustees Of The Leland Stanford Junior University Phase-contrast MRI using phased-array multicoil
EP0695947B1 (de) * 1994-08-03 2001-11-14 Philips Patentverwaltung GmbH MR-Verfahren zur Bestimmung der Kernmagnetisierungsverteilung mit einer Oberflächenspulen-Anordnung
US5551430A (en) * 1994-08-05 1996-09-03 Picker International, Inc. RF coil identification and testing interface for NMR systems
EP0826976A3 (de) * 1996-08-28 1998-10-21 Philips Patentverwaltung GmbH MR-Anordnung mit einer Referenzspulen-Anordnung zur Rekonstruktion von MR-Bildern eines Spulen-Arrays
US5910728A (en) * 1996-11-12 1999-06-08 Beth Israel Deaconess Medical Center Simultaneous acquisition of spatial harmonics (SMASH): ultra-fast imaging with radiofrequency coil arrays
US5928148A (en) * 1997-06-02 1999-07-27 Cornell Research Foundation, Inc. Method for performing magnetic resonance angiography over a large field of view using table stepping
JPH11276452A (ja) * 1998-03-31 1999-10-12 Shimadzu Corp Mrイメージング方法及びその装置

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Publication number Publication date
DE19926491A1 (de) 1999-12-16
IL130252A0 (en) 2000-06-01
US6134465A (en) 2000-10-17
JP2000083923A (ja) 2000-03-28

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