JP4104328B2 - オープンｍｒｉシステム用ｒｆシールド方法および装置 - Google Patents

オープンｍｒｉシステム用ｒｆシールド方法および装置 Download PDF

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Publication number
JP4104328B2
JP4104328B2 JP2001388955A JP2001388955A JP4104328B2 JP 4104328 B2 JP4104328 B2 JP 4104328B2 JP 2001388955 A JP2001388955 A JP 2001388955A JP 2001388955 A JP2001388955 A JP 2001388955A JP 4104328 B2 JP4104328 B2 JP 4104328B2
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Japan
Prior art keywords
magnetic field
shield
gradient
generating element
main magnet
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JP2001388955A
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Japanese (ja)
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JP2002263081A5 (https=
JP2002263081A (ja
Inventor
エディー・ビー・ボスカンプ
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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
    • G01R33/42—Screening
    • G01R33/422—Screening of the radio frequency field
    • 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

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2001388955A 2000-12-22 2001-12-21 オープンｍｒｉシステム用ｒｆシールド方法および装置 Expired - Fee Related JP4104328B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/746931 2000-12-22
US09/746,931 US6522144B2 (en) 2000-12-22 2000-12-22 RF shielding method and apparatus for an open MRI system

Publications (3)

Publication Number Publication Date
JP2002263081A JP2002263081A (ja) 2002-09-17
JP2002263081A5 JP2002263081A5 (https=) 2005-07-21
JP4104328B2 true JP4104328B2 (ja) 2008-06-18

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JP2001388955A Expired - Fee Related JP4104328B2 (ja) 2000-12-22 2001-12-21 オープンｍｒｉシステム用ｒｆシールド方法および装置

Country Status (3)

Country Link
US (1) US6522144B2 (https=)
EP (1) EP1217383A3 (https=)
JP (1) JP4104328B2 (https=)

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US6840995B2 (en) * 1999-07-14 2005-01-11 Calcitec, Inc. Process for producing fast-setting, bioresorbable calcium phosphate cements
US6788060B1 (en) 2003-05-28 2004-09-07 Ge Medical Systems Global Technology Co., Inc. Imaging system with homogeneous magnetic field
US7053617B2 (en) * 2003-10-01 2006-05-30 General Electric Co. Integrated electronic RF shielding apparatus for an MRI magnet
CN1875285A (zh) * 2003-10-29 2006-12-06 皇家飞利浦电子股份有限公司 适合于基于磁共振记录图像的屏蔽治疗室和设备
US7088100B2 (en) * 2004-03-11 2006-08-08 General Electric Company Method and apparatus to generate a circular polarized RF field independent of subject asymmetry
JP4639763B2 (ja) * 2004-11-12 2011-02-23 三菱電機株式会社 磁気共鳴イメージング装置
CN101088023A (zh) * 2004-12-21 2007-12-12 皇家飞利浦电子股份有限公司 具有多种对比度的磁共振成像
DE102006005285A1 (de) * 2006-02-06 2007-08-16 Siemens Ag Magnetresonanzeinrichtung sowie Verfahren zur Überwachung einer Magnetresonanzeinrichtung
US20080233426A1 (en) * 2007-03-21 2008-09-25 Gaviglia John J Steel sheeting for use in room size radio frequency shielded enclosures and method for making improved steel sheeting
WO2008153036A1 (ja) * 2007-06-14 2008-12-18 Hitachi Medical Corporation オープン型磁気共鳴イメージング装置
CN102119252B (zh) 2008-06-06 2015-02-18 拜耳医疗保健公司 用于向患者递送流体注射药丸以及处理有害流体的装置和方法
JP5754010B2 (ja) * 2011-06-20 2015-07-22 学校法人金沢工業大学 軽量永久磁石型磁気共鳴分析装置
RU2595798C2 (ru) 2011-10-18 2016-08-27 Конинклейке Филипс Н.В. Катушечная сборка ядерного магнитного резонанса с радиочастотным экраном, переключаемым между блокирующим состоянием и прозрачным состоянием
US9261574B2 (en) 2012-05-02 2016-02-16 General Electric Company Structured RF coil assembly for MRI scanner
US9125976B2 (en) 2012-06-07 2015-09-08 Bayer Medical Care Inc. Shield adapters
US9393441B2 (en) * 2012-06-07 2016-07-19 Bayer Healthcare Llc Radiopharmaceutical delivery and tube management system
US9889288B2 (en) 2012-06-07 2018-02-13 Bayer Healthcare Llc Tubing connectors
US9498174B2 (en) 2012-12-27 2016-11-22 General Electric Company Whole body RF coil for PET-MR system
US9116215B2 (en) 2013-01-09 2015-08-25 General Electric Company Composite RF shield and method of making same
JP2016034449A (ja) * 2014-08-04 2016-03-17 株式会社東芝 磁気共鳴イメージング装置
EA034820B1 (ru) 2015-02-17 2020-03-25 Эли Лилли Энд Компани Порошковый состав для интраназального введения для лечения гипогликемии
WO2020155137A1 (en) * 2019-02-02 2020-08-06 Shanghai United Imaging Healthcare Co., Ltd. Radiation therapy system and method

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US5227728A (en) * 1991-11-01 1993-07-13 The Regents Of The University Of California Gradient driver control in magnetic resonance imaging
US5539314A (en) * 1994-12-01 1996-07-23 The Regents Of The University Of California RF shield for four-post vertical field magnet used for MRI
JPH0928688A (ja) * 1995-07-14 1997-02-04 Ge Yokogawa Medical Syst Ltd Ｍｒ装置及びｍｒ装置の製造方法
JP3747981B2 (ja) * 1997-06-27 2006-02-22 株式会社日立メディコ 磁気共鳴イメージング装置
AU9364698A (en) * 1997-09-25 1999-04-12 Odin Technologies Ltd. Magnetic apparatus for mri
US6144204A (en) * 1997-11-28 2000-11-07 Picker Nordstar Oy Gradient coils for magnetic resonance meeting
US5952830A (en) * 1997-12-22 1999-09-14 Picker International, Inc. Octapole magnetic resonance gradient coil system with elongate azimuthal gap
US6078177A (en) * 1998-01-05 2000-06-20 Picker International, Inc. Flared gradient coil set with a finite shield current
RU98106937A (ru) * 1998-04-14 2000-02-10 Пикер Нордстар ОЮ (FI) Устройство для формирования изображения с помощью магнитного резонанса
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US6278275B1 (en) * 1999-10-18 2001-08-21 Picker International, Inc. Gradient coil set with non-zero first gradient field vector derivative
US6262576B1 (en) * 1999-11-16 2001-07-17 Picker International, Inc. Phased array planar gradient coil set for MRI systems
US6278276B1 (en) * 1999-11-16 2001-08-21 Picker International, Inc. Phased array gradient coil set with an off center gradient field sweet spot

Also Published As

Publication number Publication date
EP1217383A2 (en) 2002-06-26
US6522144B2 (en) 2003-02-18
EP1217383A3 (en) 2004-01-14
JP2002263081A (ja) 2002-09-17
US20020079894A1 (en) 2002-06-27

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