CN101484822A - 磁共振成像磁体系统的无源匀场 - Google Patents
磁共振成像磁体系统的无源匀场 Download PDFInfo
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- CN101484822A CN101484822A CNA2007800247267A CN200780024726A CN101484822A CN 101484822 A CN101484822 A CN 101484822A CN A2007800247267 A CNA2007800247267 A CN A2007800247267A CN 200780024726 A CN200780024726 A CN 200780024726A CN 101484822 A CN101484822 A CN 101484822A
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- 239000000463 material Substances 0.000 claims abstract description 68
- 230000005291 magnetic effect Effects 0.000 claims description 32
- 238000009826 distribution Methods 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000005415 magnetization Effects 0.000 description 10
- 238000005457 optimization Methods 0.000 description 7
- 238000003384 imaging method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 description 4
- 230000001235 sensitizing effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 238000012938 design process Methods 0.000 description 1
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- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
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Images
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
- G01R33/38—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
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0613389A GB2439749B (en) | 2006-07-06 | 2006-07-06 | Passive shimming of magnet systems |
GB0613389.6 | 2006-07-06 | ||
PCT/GB2007/050381 WO2008004004A1 (en) | 2006-07-06 | 2007-07-05 | Passive shimming of mri magnet systems |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101484822A true CN101484822A (zh) | 2009-07-15 |
CN101484822B CN101484822B (zh) | 2012-08-29 |
Family
ID=36926527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007800247267A Expired - Fee Related CN101484822B (zh) | 2006-07-06 | 2007-07-05 | 磁共振成像磁体系统的无源匀场 |
Country Status (5)
Country | Link |
---|---|
US (2) | US20090096453A1 (zh) |
JP (1) | JP5172834B2 (zh) |
CN (1) | CN101484822B (zh) |
GB (1) | GB2439749B (zh) |
WO (1) | WO2008004004A1 (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102116855A (zh) * | 2010-12-31 | 2011-07-06 | 奥泰医疗系统有限责任公司 | 超导磁体无源匀场方法 |
CN102478647A (zh) * | 2010-11-24 | 2012-05-30 | 三菱电机株式会社 | Mri用超导磁体的调整方法 |
CN103654783A (zh) * | 2012-09-05 | 2014-03-26 | 三星电子株式会社 | 磁共振成像装置及其制造方法 |
CN105652226A (zh) * | 2014-11-28 | 2016-06-08 | 西门子公司 | 用于确定磁共振设备的基本匀场设置的方法 |
CN106233153A (zh) * | 2014-03-24 | 2016-12-14 | 西门子医疗有限公司 | 具有增强冷却的用于磁共振成像装置的匀场设备及用于提供这种设备的方法 |
CN109549646A (zh) * | 2017-09-26 | 2019-04-02 | 西门子保健有限责任公司 | 医学成像设备和用于确定匀场单元的装配的方法 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5199741B2 (ja) * | 2008-06-10 | 2013-05-15 | 三菱電機株式会社 | 超電導電磁石装置 |
JP5349177B2 (ja) * | 2009-07-09 | 2013-11-20 | 株式会社東芝 | 磁気共鳴イメージング装置 |
CA2780181C (en) * | 2009-12-02 | 2019-10-15 | Nanalysis Corp. | Method and apparatus for producing homogeneous magnetic fields |
GB2483854B (en) * | 2010-09-21 | 2014-12-17 | Siemens Plc | Arrangements and method for shimming a magnetic field |
DE102012016402A1 (de) * | 2011-11-21 | 2013-05-23 | Krohne Ag | Magnetbaugruppe für ein kernmagnetisches Druchflussmessgerät |
BR112015031516A2 (pt) * | 2013-06-21 | 2017-07-25 | Koninklijke Philips Nv | aparelho de ressonância magnética |
EP3193184A1 (en) * | 2016-01-17 | 2017-07-19 | Eidgenössische Technische Hochschule (ETH) | B0 shimming device for mri |
CN107402225A (zh) * | 2017-07-07 | 2017-11-28 | 云南电网有限责任公司大理供电局 | 射频电磁弛豫特性测量系统 |
EP3839542A1 (en) * | 2019-12-16 | 2021-06-23 | Koninklijke Philips N.V. | Optimized orientation of shim elements in an mri system |
CN114200366A (zh) * | 2021-12-16 | 2022-03-18 | 武汉联影生命科学仪器有限公司 | 匀场装置、磁场组件、磁共振成像系统及匀场方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3540080A1 (de) * | 1985-11-12 | 1987-05-14 | Siemens Ag | Kernspintomographiegeraet |
FR2609206B1 (fr) * | 1986-12-30 | 1992-02-14 | Thomson Cgr | Dispositif correcteur par elements magnetiques d'inhomogeneites du champ magnetique dans un aimant |
FR2623324A1 (fr) * | 1987-11-13 | 1989-05-19 | Thomson Cgr | Dispositif d'imagerie rmn, procede de correction d'inhomogeneite et procede de realisation d'aimants mis en oeuvre dans le dispositif |
US5235284A (en) * | 1989-07-07 | 1993-08-10 | Mitsubishi Denki Kabushiki Kaisha | Passive shim arrangement for nuclear magnetic resonance |
US5003276A (en) * | 1989-08-11 | 1991-03-26 | General Atomics | Method of site shimming on permanent magnets |
JPH04328477A (ja) * | 1991-04-30 | 1992-11-17 | Mitsubishi Electric Corp | 電磁石装置 |
JPH04347137A (ja) * | 1991-05-27 | 1992-12-02 | Mitsubishi Electric Corp | 磁場補正装置 |
US5635839A (en) * | 1994-11-04 | 1997-06-03 | Picker International, Inc. | High order passive shimming assembly for MRI magnets |
US5786695A (en) * | 1997-03-21 | 1998-07-28 | Picker International, Inc. | Shim tray with reduced heat conduction and forced cooling |
US5999076A (en) * | 1998-12-30 | 1999-12-07 | General Electric Company | Magnetic resonance imaging passively shimmed superconducting magnet assembly |
DE19922652C2 (de) * | 1999-05-18 | 2001-08-02 | Bruker Analytik Gmbh | Einrichtung zum Homogenisieren eines Magnetfeldes |
DE10147984B4 (de) * | 2001-09-28 | 2007-10-11 | Siemens Ag | Magnetresonanz-Untersuchungsgerät mit einer Einrichtung zur Erzeugung eines homogenen Magnetfeldes und Verfahren zur Verbesserung der Homogenität eines Magnetfeldes |
DE10214112B4 (de) * | 2002-03-28 | 2006-01-26 | Siemens Ag | Shimkasten, Gradientenspulensystem und Magnetresonanzgerät zum Aufnehmen des Shimkastens |
DE10219769B3 (de) * | 2002-05-02 | 2004-01-22 | Siemens Ag | Magnetresonanzgerät und mit Shimelementen bestückbare Trägervorrichtung |
US7196520B2 (en) * | 2004-10-22 | 2007-03-27 | General Electric Company | Method and apparatus for passive shimming of magnets |
DE102005020378B4 (de) * | 2005-05-02 | 2010-01-07 | Siemens Ag | Magnetresonanzgerät mit Gradientenspule mit integrierten passiven Shimvorrichtungen |
-
2006
- 2006-07-06 GB GB0613389A patent/GB2439749B/en not_active Expired - Fee Related
-
2007
- 2007-07-05 CN CN2007800247267A patent/CN101484822B/zh not_active Expired - Fee Related
- 2007-07-05 US US12/301,139 patent/US20090096453A1/en not_active Abandoned
- 2007-07-05 WO PCT/GB2007/050381 patent/WO2008004004A1/en active Application Filing
- 2007-07-05 JP JP2009517446A patent/JP5172834B2/ja not_active Expired - Fee Related
-
2010
- 2010-04-26 US US12/767,270 patent/US20100207630A1/en not_active Abandoned
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102478647A (zh) * | 2010-11-24 | 2012-05-30 | 三菱电机株式会社 | Mri用超导磁体的调整方法 |
US9013255B2 (en) | 2010-11-24 | 2015-04-21 | Mitsubishi Electric Corporation | Method for adjusting MRI superconducting magnet |
CN102478647B (zh) * | 2010-11-24 | 2015-12-16 | 三菱电机株式会社 | Mri用超导磁体的调整方法 |
CN102116855A (zh) * | 2010-12-31 | 2011-07-06 | 奥泰医疗系统有限责任公司 | 超导磁体无源匀场方法 |
CN102116855B (zh) * | 2010-12-31 | 2013-10-16 | 奥泰医疗系统有限责任公司 | 超导磁体无源匀场方法 |
CN103654783A (zh) * | 2012-09-05 | 2014-03-26 | 三星电子株式会社 | 磁共振成像装置及其制造方法 |
US9753107B2 (en) | 2012-09-05 | 2017-09-05 | Samsung Electronics Co., Ltd. | Magnetic resonance imaging (MRI) apparatus and manufacturing method thereof |
CN103654783B (zh) * | 2012-09-05 | 2018-05-08 | 三星电子株式会社 | 磁共振成像装置及其制造方法 |
CN106233153A (zh) * | 2014-03-24 | 2016-12-14 | 西门子医疗有限公司 | 具有增强冷却的用于磁共振成像装置的匀场设备及用于提供这种设备的方法 |
CN105652226A (zh) * | 2014-11-28 | 2016-06-08 | 西门子公司 | 用于确定磁共振设备的基本匀场设置的方法 |
CN105652226B (zh) * | 2014-11-28 | 2019-04-05 | 西门子公司 | 用于确定磁共振设备的基本匀场设置的方法 |
CN109549646A (zh) * | 2017-09-26 | 2019-04-02 | 西门子保健有限责任公司 | 医学成像设备和用于确定匀场单元的装配的方法 |
Also Published As
Publication number | Publication date |
---|---|
US20100207630A1 (en) | 2010-08-19 |
US20090096453A1 (en) | 2009-04-16 |
WO2008004004A1 (en) | 2008-01-10 |
JP5172834B2 (ja) | 2013-03-27 |
GB2439749B (en) | 2010-03-03 |
JP2009542277A (ja) | 2009-12-03 |
GB2439749A (en) | 2008-01-09 |
CN101484822B (zh) | 2012-08-29 |
GB0613389D0 (en) | 2006-08-16 |
GB2439749A8 (en) | 2008-11-19 |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: ENGLAND SIEMENS AG Free format text: FORMER OWNER: SIEMENS MAGNET TECHNOLOGY LTD. Effective date: 20091023 |
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C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20091023 Address after: Britain's Applicant after: Siemens PLC Address before: Oxfordshire Applicant before: Siemens Magnet Technology Ltd. |
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C14 | Grant of patent or utility model | ||
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20140705 |
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EXPY | Termination of patent right or utility model |