NL8701948A - Magnetisch resonantie-apparaat met verbeterd gradient spoelenstelsel. - Google Patents
Magnetisch resonantie-apparaat met verbeterd gradient spoelenstelsel. Download PDFInfo
- Publication number
- NL8701948A NL8701948A NL8701948A NL8701948A NL8701948A NL 8701948 A NL8701948 A NL 8701948A NL 8701948 A NL8701948 A NL 8701948A NL 8701948 A NL8701948 A NL 8701948A NL 8701948 A NL8701948 A NL 8701948A
- Authority
- NL
- Netherlands
- Prior art keywords
- magnetic resonance
- gradient
- coil system
- resonance device
- arc conductors
- Prior art date
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
- G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8701948A NL8701948A (nl) | 1987-08-19 | 1987-08-19 | Magnetisch resonantie-apparaat met verbeterd gradient spoelenstelsel. |
DE8888201728T DE3875863T2 (de) | 1987-08-19 | 1988-08-12 | Magnetisches resonanzgeraet mit gradientenspulensystem. |
EP88201728A EP0304126B1 (de) | 1987-08-19 | 1988-08-12 | Magnetisches Resonanzgerät mit Gradientenspulensystem |
JP63202796A JP2843829B2 (ja) | 1987-08-19 | 1988-08-16 | 改良された傾斜磁場コイルシステムを有する磁気共鳴装置 |
US07/233,310 US4878023A (en) | 1987-08-19 | 1988-08-17 | Magnetic resonance apparatus comprising an improved gradient coil system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8701948 | 1987-08-19 | ||
NL8701948A NL8701948A (nl) | 1987-08-19 | 1987-08-19 | Magnetisch resonantie-apparaat met verbeterd gradient spoelenstelsel. |
Publications (1)
Publication Number | Publication Date |
---|---|
NL8701948A true NL8701948A (nl) | 1989-03-16 |
Family
ID=19850473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8701948A NL8701948A (nl) | 1987-08-19 | 1987-08-19 | Magnetisch resonantie-apparaat met verbeterd gradient spoelenstelsel. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4878023A (de) |
EP (1) | EP0304126B1 (de) |
JP (1) | JP2843829B2 (de) |
DE (1) | DE3875863T2 (de) |
NL (1) | NL8701948A (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3918743A1 (de) * | 1989-06-08 | 1990-12-13 | Philips Patentverwaltung | Hochfrequenz-quadraturspulenanordnung |
US5296810A (en) * | 1992-03-27 | 1994-03-22 | Picker International, Inc. | MRI self-shielded gradient coils |
US5278504A (en) * | 1989-06-16 | 1994-01-11 | Picker International, Inc. | Gradient coil with off center sweet spot for magnetic resonance imaging |
GB9026924D0 (en) * | 1990-12-12 | 1991-01-30 | Marconi Gec Ltd | Coil arrangements in magnetic resonance apparatus |
DE4029477C2 (de) * | 1989-09-29 | 1994-06-01 | Siemens Ag | Tesserale Gradientenspule für Kernspin-Tomographiegeräte |
NL8903066A (nl) * | 1989-12-14 | 1991-07-01 | Philips Nv | Magnetisch resonantie apparaat met beeldfout reductie. |
US5481191A (en) * | 1990-06-29 | 1996-01-02 | Advanced Nmr Systems, Inc. | Shielded gradient coil for nuclear magnetic resonance imaging |
EP0532692B1 (de) * | 1990-06-06 | 1996-01-17 | Advanced Nmr Systems Inc. | Abgeschirmte gradientspule für nmr-abbildung |
JP2928595B2 (ja) * | 1990-06-27 | 1999-08-03 | 株式会社東芝 | 傾斜磁場発生装置 |
NL9002574A (nl) * | 1990-11-27 | 1992-06-16 | Philips Nv | Magnetisch resonantieapparaat. |
GB9105286D0 (en) * | 1991-03-13 | 1991-04-24 | Oxford Instr Ltd | Magnetic field generating apparatus |
GB2257521B (en) * | 1991-07-04 | 1995-10-04 | Magnex Scient Limited | Electromagnets |
JP3179805B2 (ja) * | 1991-09-04 | 2001-06-25 | 株式会社日立メディコ | Mrイメージング装置の傾斜磁界発生コイル |
DE4230145C2 (de) * | 1992-09-09 | 1996-09-05 | Bruker Analytische Messtechnik | NMR-Meßeinrichtung |
US5554929A (en) * | 1993-03-12 | 1996-09-10 | Doty Scientific, Inc. | Crescent gradient coils |
FR2704322B1 (fr) * | 1993-04-20 | 1995-05-24 | Gec Alsthom Electromec | Système de bobines de gradient transverse pour appareil de résonance magnétique nucléaire. |
US5530355A (en) * | 1993-05-13 | 1996-06-25 | Doty Scientific, Inc. | Solenoidal, octopolar, transverse gradient coils |
US5497089A (en) * | 1994-03-15 | 1996-03-05 | Picker International, Inc. | Wide aperture gradient set |
US5539367A (en) * | 1994-05-02 | 1996-07-23 | General Electric Company | Superconducting gradient shields in magnetic resonance imaging magnets |
DE19503833C2 (de) * | 1995-02-06 | 1998-05-14 | Siemens Ag | Kernspintomographiegerät mit einer Kombination aus Hochfrequenzantenne und Gradientenspule |
DE10202986A1 (de) | 2002-01-26 | 2003-07-31 | Philips Intellectual Property | Spulensystem für eine MR-Apparatur sowie MR-Apparatur mit einem solchen Spulensystem |
US6903552B2 (en) | 2003-02-12 | 2005-06-07 | Siemens Aktiengesellschaft | Magnetic resonance apparatus with eddy current compensation |
EP1966622A1 (de) * | 2005-12-20 | 2008-09-10 | Koninklijke Philips Electronics N.V. | Magnetresonanzscanner mit einem länglichen magnetfeldgradientensystem |
EP2097001B1 (de) * | 2006-12-20 | 2016-06-22 | Philips Intellectual Property & Standards GmbH | Verfahren und anordnung zur beeinflussung und/oder erkennung magnetischer partikel in einem wirkungsbereich |
JP5486313B2 (ja) * | 2006-12-20 | 2014-05-07 | コーニンクレッカ フィリップス エヌ ヴェ | 作用領域の磁性粒子に影響を及ぼし、及び/又は該磁性粒子を検出する装置並びに方法 |
CN101573608B (zh) * | 2006-12-20 | 2013-04-10 | 皇家飞利浦电子股份有限公司 | 用于影响和/或检测和/或定位作用区域中的磁性粒子的设备和方法 |
CN101903792A (zh) * | 2007-12-21 | 2010-12-01 | 皇家飞利浦电子股份有限公司 | 具有层合铁磁核和用于抑制涡流磁场的超导膜的电磁体 |
DE102009027119B4 (de) * | 2009-06-23 | 2013-01-17 | Sirona Dental Systems Gmbh | Magnetfeldeinheit eines MRT-Systems zur bildgebenden Erfassung eines Kopfbereichs |
US8427164B2 (en) * | 2009-07-09 | 2013-04-23 | Baker Hughes Incorporated | Apparatus and method for reducing effects of eccentricity in induction tools |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2951018A1 (de) * | 1979-12-19 | 1982-02-11 | Wilfried H. Dr. 5483 Bad Neuenahr Bergmann | Verfahren und vorrichtung zur verbesserung der empfindlichkeit und des signal-rausch-verhaeltnisses von spin-echo-messungen an proben, die bei ihrer eigentemperatur vermessen werden muessen und die elektrische leitfaehigkeit besitzen |
DE3133432A1 (de) * | 1981-08-24 | 1983-03-03 | Siemens AG, 1000 Berlin und 8000 München | Hochfrequenzfeld-einrichtung in einer kernspinresonanz-apparatur |
DE3133873A1 (de) * | 1981-08-27 | 1983-03-17 | Siemens AG, 1000 Berlin und 8000 München | Gradientenspulen-system fuer eine einrichtung der kernspinresonanz-technik |
JPS5940151A (ja) * | 1982-08-30 | 1984-03-05 | Shimadzu Corp | 核磁気共鳴映像法 |
US4607225A (en) * | 1983-07-19 | 1986-08-19 | Regents Of The University Of California | Apparatus and method for reducing spurious currents in NMR imaging apparatus induced by pulsed gradient fields |
NL8303534A (nl) * | 1983-10-14 | 1985-05-01 | Philips Nv | Kernspinresonantie apparaat. |
US4585995A (en) * | 1984-04-19 | 1986-04-29 | Technicare Corporation | Nuclear magnetic resonance eddy field suppression apparatus |
JPS61165648A (ja) * | 1985-01-18 | 1986-07-26 | Mitsubishi Electric Corp | 磁気共鳴イメ−ジング用径方向傾斜磁場コイル |
JPS61274312A (ja) * | 1985-05-14 | 1986-12-04 | Sumitomo Electric Ind Ltd | 化合物半導体装置 |
JPS62334A (ja) * | 1985-06-26 | 1987-01-06 | 株式会社東芝 | 磁気共鳴イメ−ジング装置 |
US4761612A (en) * | 1985-07-25 | 1988-08-02 | Picker International, Inc. | Programmable eddy current correction |
EP0216590B2 (de) * | 1985-09-20 | 2001-06-06 | Btg International Limited | Magnetische Abschirmungen |
US4698591A (en) * | 1986-01-03 | 1987-10-06 | General Electric Company | Method for magnetic field gradient eddy current compensation |
US4737716A (en) * | 1986-02-06 | 1988-04-12 | General Electric Company | Self-shielded gradient coils for nuclear magnetic resonance imaging |
JPH07100057B2 (ja) * | 1986-09-29 | 1995-11-01 | 株式会社東芝 | 磁気共鳴イメ−ジング装置 |
-
1987
- 1987-08-19 NL NL8701948A patent/NL8701948A/nl not_active Application Discontinuation
-
1988
- 1988-08-12 EP EP88201728A patent/EP0304126B1/de not_active Expired
- 1988-08-12 DE DE8888201728T patent/DE3875863T2/de not_active Expired - Fee Related
- 1988-08-16 JP JP63202796A patent/JP2843829B2/ja not_active Expired - Lifetime
- 1988-08-17 US US07/233,310 patent/US4878023A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4878023A (en) | 1989-10-31 |
JPS6470031A (en) | 1989-03-15 |
DE3875863D1 (de) | 1992-12-17 |
EP0304126A1 (de) | 1989-02-22 |
EP0304126B1 (de) | 1992-11-11 |
DE3875863T2 (de) | 1993-05-19 |
JP2843829B2 (ja) | 1999-01-06 |
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Legal Events
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---|---|---|---|
A1B | A search report has been drawn up | ||
BV | The patent application has lapsed |