DE69716825D1 - Supraleitende magnetvorrichtung und bilderzeugungsvorrichtung durch magnetische resonanz unter verwendung derselben - Google Patents
Supraleitende magnetvorrichtung und bilderzeugungsvorrichtung durch magnetische resonanz unter verwendung derselbenInfo
- Publication number
- DE69716825D1 DE69716825D1 DE69716825T DE69716825T DE69716825D1 DE 69716825 D1 DE69716825 D1 DE 69716825D1 DE 69716825 T DE69716825 T DE 69716825T DE 69716825 T DE69716825 T DE 69716825T DE 69716825 D1 DE69716825 D1 DE 69716825D1
- Authority
- DE
- Germany
- Prior art keywords
- supral
- magnetic
- imaging device
- magnetic resonance
- conducting
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
- G01R33/421—Screening of main or gradient magnetic 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
-
- 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
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
- G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
-
- 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)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8019503A JPH09190913A (ja) | 1996-01-10 | 1996-01-10 | 超電導磁石装置及びそれを用いた磁気共鳴イメージング装置 |
PCT/JP1997/000039 WO1997025726A1 (fr) | 1996-01-10 | 1997-01-10 | Dispositif magnetique supraconducteur et dispositif d'imagerie rmn l'utilisant |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69716825D1 true DE69716825D1 (de) | 2002-12-12 |
DE69716825T2 DE69716825T2 (de) | 2003-09-18 |
Family
ID=12001186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69716825T Expired - Lifetime DE69716825T2 (de) | 1996-01-10 | 1997-01-10 | Supraleitende magnetvorrichtung und bilderzeugungsvorrichtung durch magnetische resonanz unter verwendung derselben |
Country Status (5)
Country | Link |
---|---|
US (1) | US5936498A (de) |
EP (1) | EP0817211B1 (de) |
JP (1) | JPH09190913A (de) |
DE (1) | DE69716825T2 (de) |
WO (1) | WO1997025726A1 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2309305B (en) * | 1996-01-19 | 2000-05-31 | Oxford Magnet Tech | Improvements in or relating to MRI magnets |
US5900792A (en) * | 1997-09-16 | 1999-05-04 | General Electric Company | Magnetic field homogeneity correction for superconducting magnet |
JP2002034947A (ja) * | 1997-10-24 | 2002-02-05 | Hitachi Ltd | マグネット装置、および、これを用いたmri装置 |
JP4247948B2 (ja) * | 1997-12-01 | 2009-04-02 | 株式会社日立メディコ | 磁石装置及びmri装置 |
US5874880A (en) * | 1998-03-05 | 1999-02-23 | General Electric Company | Shielded and open superconductive magnet |
US5883558A (en) * | 1998-02-19 | 1999-03-16 | General Electric Company | Open superconductive magnet having shielding |
US5994991A (en) * | 1998-02-19 | 1999-11-30 | General Electric Company | Open magnet having shielding |
JP2001078982A (ja) | 1999-09-16 | 2001-03-27 | Hitachi Medical Corp | 開放型磁石装置 |
DE10041672C2 (de) * | 2000-08-24 | 2002-07-11 | Bruker Ag Faellanden | Magnetanordnung mit einem zusätzlichen stromführenden Spulensystem und Verfahren zu deren Dimensionierung |
KR20020070984A (ko) * | 2000-09-26 | 2002-09-11 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 주 자석내에 위치된 원뿔형 공동을 가진 수직 필드 형태mri장치 |
US6570475B1 (en) | 2000-11-20 | 2003-05-27 | Intermagnetics General Corp. | Split type magnetic resonance imaging magnet |
JP3987686B2 (ja) * | 2001-02-02 | 2007-10-10 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 静磁界補正方法およびmri装置 |
GB0102654D0 (en) * | 2001-02-02 | 2001-03-21 | Oxford Magnet Tech | Improvements in or relating to magnets |
ES2278835T5 (es) | 2001-05-28 | 2011-11-07 | Esaote S.P.A. | Aparato para obtener imágenes del interior del cuerpo. |
KR100429776B1 (ko) * | 2001-08-01 | 2004-05-04 | 주식회사 덕성 | 초전도자석을 이용한 균일 중력제어장치 |
US6667676B2 (en) * | 2001-09-12 | 2003-12-23 | Hitachi, Ltd. | Superconducting magnet and magnetic resonance imaging apparatus using the same |
ITSV20010034A1 (it) * | 2001-10-02 | 2003-04-02 | Esaote Spa | Magnete a superconduttore in particolare per macchine di rilevamento di immagini in risonanza magnetica nucleare |
JP3698099B2 (ja) | 2001-12-14 | 2005-09-21 | 株式会社日立製作所 | 磁気共鳴撮像装置用マグネット |
US8013602B2 (en) * | 2004-04-01 | 2011-09-06 | Liposcience, Inc. | NMR clinical analyzers and related methods, systems, modules and computer program products for clinical evaluation of biosamples |
JP4661189B2 (ja) * | 2004-09-01 | 2011-03-30 | 株式会社日立製作所 | 超電導磁石装置及びその超電導磁石装置を備えたmri装置,nmr分析装置 |
JP2006115934A (ja) * | 2004-10-19 | 2006-05-11 | Mitsubishi Electric Corp | 磁石装置及びそれを用いた磁気共鳴イメージング装置 |
US7274192B2 (en) * | 2005-05-31 | 2007-09-25 | General Electric Company | Combined open and closed magnet configuration for MRI |
US7828667B2 (en) * | 2005-09-02 | 2010-11-09 | Water Ride Concepts, Inc. | Methods and systems for active filtration of portions of self-contained floating marine parks |
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 |
JP4897608B2 (ja) * | 2007-08-06 | 2012-03-14 | 株式会社神戸製鋼所 | 超電導電磁石 |
US8933335B2 (en) * | 2011-10-14 | 2015-01-13 | Varian Semiconductor Equipment Associates, Inc. | Current lead with a configuration to reduce heat load transfer in an alternating electrical current environment |
CN103035352B (zh) * | 2012-12-17 | 2015-03-18 | 中国科学院电工研究所 | 一种双平面型开放式磁共振成像超导磁体系统 |
US9645220B2 (en) * | 2014-04-17 | 2017-05-09 | Allegro Microsystems, Llc | Circuits and methods for self-calibrating or self-testing a magnetic field sensor using phase discrimination |
US9735773B2 (en) | 2014-04-29 | 2017-08-15 | Allegro Microsystems, Llc | Systems and methods for sensing current through a low-side field effect transistor |
CN105823996B (zh) * | 2015-01-08 | 2018-11-02 | 西门子(深圳)磁共振有限公司 | 用于超导磁体的热辐射屏、超导磁体和磁共振成像设备 |
GB2540729B (en) * | 2015-05-01 | 2018-03-21 | Oxford Instruments Nanotechnology Tools Ltd | Superconducting magnet |
EP3270177A1 (de) * | 2017-06-02 | 2018-01-17 | Siemens Healthcare GmbH | Verfahren zum betreiben einer lokalspule und lokalspule sowie magnetresonanztomograph |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3616078A1 (de) * | 1986-05-13 | 1987-11-19 | Bruker Analytische Messtechnik | Elektromagnetsystem fuer die kernspintomographie |
US4766378A (en) * | 1986-11-28 | 1988-08-23 | Fonar Corporation | Nuclear magnetic resonance scanners |
JPH0227704A (ja) * | 1988-07-18 | 1990-01-30 | Mitsubishi Electric Corp | 超電導マグネツト装置 |
DE3907927A1 (de) * | 1989-03-11 | 1990-09-20 | Bruker Analytische Messtechnik | Magnetsystem |
EP0424808A1 (de) * | 1989-10-21 | 1991-05-02 | Kabushiki Kaisha Toshiba | Magnetresonanz-Abbildungsgerät |
JP2841695B2 (ja) * | 1990-04-25 | 1998-12-24 | 株式会社島津製作所 | 核磁気共鳴断層撮影装置の超電導マグネット用低温容器 |
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 |
JP2759185B2 (ja) * | 1992-09-04 | 1998-05-28 | 株式会社日立メディコ | 磁気共鳴イメージング装置 |
JPH0745990A (ja) * | 1993-08-03 | 1995-02-14 | Dowa Mining Co Ltd | 超電導磁気シールド構造物 |
JPH0794319A (ja) * | 1993-09-20 | 1995-04-07 | Toshiba Corp | 電流リード装置 |
US5410287A (en) * | 1994-04-05 | 1995-04-25 | General Electric Company | Open MRI magnet with uniform magnetic field |
US5463364A (en) * | 1994-04-13 | 1995-10-31 | Bruker Analytische Messtechnik Gmbh | Magnet system for NMR tomography |
US5545997A (en) * | 1994-05-13 | 1996-08-13 | Bruker Analytische Messtechnik Gmbh | Therapy tomograph with homogeneity device |
JPH07313490A (ja) * | 1994-05-26 | 1995-12-05 | Hitachi Medical Corp | 磁気共鳴イメージング装置用傾斜磁場発生装置 |
US5402094A (en) * | 1994-08-15 | 1995-03-28 | Enge; Harald A. | MRI mammography magnet |
JP3731231B2 (ja) * | 1995-11-30 | 2006-01-05 | 株式会社日立メディコ | 超電導磁石装置 |
JP2913013B2 (ja) * | 1996-02-22 | 1999-06-28 | 工業技術院長 | プラスチック成形品の表面改質方法及びそれに用いるアルコール性シリカゾル組成物 |
-
1996
- 1996-01-10 JP JP8019503A patent/JPH09190913A/ja active Pending
-
1997
- 1997-01-10 WO PCT/JP1997/000039 patent/WO1997025726A1/ja active IP Right Grant
- 1997-01-10 US US08/913,062 patent/US5936498A/en not_active Expired - Lifetime
- 1997-01-10 DE DE69716825T patent/DE69716825T2/de not_active Expired - Lifetime
- 1997-01-10 EP EP97900120A patent/EP0817211B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69716825T2 (de) | 2003-09-18 |
WO1997025726A1 (fr) | 1997-07-17 |
US5936498A (en) | 1999-08-10 |
EP0817211B1 (de) | 2002-11-06 |
JPH09190913A (ja) | 1997-07-22 |
EP0817211A4 (de) | 2000-10-04 |
EP0817211A1 (de) | 1998-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |