DE69925193D1 - Mehrfrequenz-Magnetresonanzbildgebung - Google Patents
Mehrfrequenz-MagnetresonanzbildgebungInfo
- Publication number
- DE69925193D1 DE69925193D1 DE69925193T DE69925193T DE69925193D1 DE 69925193 D1 DE69925193 D1 DE 69925193D1 DE 69925193 T DE69925193 T DE 69925193T DE 69925193 T DE69925193 T DE 69925193T DE 69925193 D1 DE69925193 D1 DE 69925193D1
- Authority
- DE
- Germany
- Prior art keywords
- magnetic resonance
- resonance imaging
- frequency magnetic
- frequency
- imaging
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3628—Tuning/matching of the transmit/receive coil
- G01R33/3635—Multi-frequency operation
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34084—Constructional details, e.g. resonators, specially adapted to MR implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/075,117 US6211677B1 (en) | 1998-05-08 | 1998-05-08 | Lung coil for imaging hyper-polarized gas in an MRI scanner |
US75117 | 1998-05-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69925193D1 true DE69925193D1 (de) | 2005-06-16 |
DE69925193T2 DE69925193T2 (de) | 2006-02-23 |
Family
ID=22123663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69925193T Expired - Lifetime DE69925193T2 (de) | 1998-05-08 | 1999-05-06 | Mehrfrequenz-Magnetresonanzbildgebung |
Country Status (3)
Country | Link |
---|---|
US (1) | US6211677B1 (de) |
EP (1) | EP0955554B1 (de) |
DE (1) | DE69925193T2 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3705973B2 (ja) * | 1999-11-19 | 2005-10-12 | 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 | Rfコイルおよび磁気共鳴撮影装置 |
US6552544B2 (en) * | 2001-04-05 | 2003-04-22 | Varian, Inc. | Detunable coil assembly and method of detuning RF coil for MRI |
GB0110392D0 (en) * | 2001-04-27 | 2001-06-20 | Oxford Instr Plc | Method and apparatus for magnetic resonance imaging |
US6791321B2 (en) * | 2002-06-18 | 2004-09-14 | Koninklijke Philips Electronics N.V. | Birdcage coils for simultaneous acquisition of spatial harmonics |
US6973162B2 (en) * | 2003-10-30 | 2005-12-06 | General Electric Company | MR/X-ray scanner having rotatable anode |
US6940282B2 (en) * | 2003-12-19 | 2005-09-06 | General Electric Company | Switchable transmit array coil |
DE102004012248A1 (de) * | 2004-03-12 | 2005-09-29 | Siemens Ag | Kernspintomographiegerät mit verbesserter Anbindung von Versorgungsleitungen beim Einsatz von Insert-Gradientenspulen |
US20060255804A1 (en) * | 2005-05-13 | 2006-11-16 | General Electric | Three concentric coil array |
US20070190663A1 (en) * | 2005-08-12 | 2007-08-16 | Lee Ray F | System and method for using polarized or hyperpolarized contrast agent to perform parallel magnetic resonance imaging of a sample |
US7336074B2 (en) * | 2006-05-05 | 2008-02-26 | Quality Electrodynamics | Active decoupling of MRI RF transmit coils |
CA3065182C (en) | 2006-10-03 | 2022-05-17 | Duke University | Systems and methods for assessing pulmonary gas transfer using hyperpolarized 129xe mri |
WO2009074966A1 (en) * | 2007-12-13 | 2009-06-18 | Koninklijke Philips Electronics N.V. | Dual tuned volume coils adapted to provide an end ring mode |
CN201207079Y (zh) * | 2007-12-29 | 2009-03-11 | 西门子(中国)有限公司 | 气压固定式线圈 |
CN102821685B (zh) | 2010-02-16 | 2016-08-03 | 杜克大学 | 用于使用全氟气体混合物的肺活体内磁共振成像的系统、方法、组成和设备 |
DE102010025919A1 (de) * | 2010-07-02 | 2012-01-05 | Siemens Aktiengesellschaft | Spule; D-Form |
DE102013205817A1 (de) | 2013-04-03 | 2014-10-09 | Siemens Aktiengesellschaft | Sendeanordnung für einen Tomographen |
CA2967337C (en) | 2014-11-11 | 2022-05-10 | Hyperfine Research, Inc. | Pulse sequences for low field magnetic resonance |
WO2016135045A1 (en) * | 2015-02-27 | 2016-09-01 | Koninklijke Philips N.V. | Magnetic resonance examination system with a moveable patient carrier |
CN105662415A (zh) * | 2016-03-03 | 2016-06-15 | 哈尔滨医科大学 | 一种多核磁共振成像系统 |
CN107884732A (zh) * | 2016-09-30 | 2018-04-06 | 西门子(深圳)磁共振有限公司 | 磁共振成像设备、射频线圈及其制造方法 |
TW202012951A (zh) | 2018-07-31 | 2020-04-01 | 美商超精細研究股份有限公司 | 低場漫射加權成像 |
WO2021108216A1 (en) | 2019-11-27 | 2021-06-03 | Hyperfine Research, Inc. | Techniques for noise suppression in an environment of a magnetic resonance imaging system |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4793357A (en) | 1986-11-24 | 1988-12-27 | Picker International, Inc. | CT blood flow mapping with xenon gas enhancement |
US4930510A (en) | 1986-11-24 | 1990-06-05 | Picker International, Inc. | Parameterization for CT blood flow mapping with xenon gas enhancement |
US5024230A (en) | 1988-11-23 | 1991-06-18 | Picker International, Inc. | Dual flow/lambda display for xenon enhanced tomography |
US5256972A (en) * | 1990-01-30 | 1993-10-26 | Elscint, Ltd. | Body coil decoupling circuit |
US5075624A (en) * | 1990-05-29 | 1991-12-24 | North American Philips Corporation | Radio frequency quadrature coil construction for magnetic resonance imaging (mri) apparatus |
GB2261516B (en) * | 1991-11-08 | 1995-07-05 | Marconi Gec Ltd | Magnetic resonance methods and apparatus |
US5365173A (en) * | 1992-07-24 | 1994-11-15 | Picker International, Inc. | Technique for driving quadrature dual frequency RF resonators for magnetic resonance spectroscopy/imaging by four-inductive loop over coupling |
EP0695947B1 (de) * | 1994-08-03 | 2001-11-14 | Philips Patentverwaltung GmbH | MR-Verfahren zur Bestimmung der Kernmagnetisierungsverteilung mit einer Oberflächenspulen-Anordnung |
US5628327A (en) * | 1994-12-15 | 1997-05-13 | Imarx Pharmaceutical Corp. | Apparatus for performing biopsies and the like |
US5680047A (en) | 1995-08-11 | 1997-10-21 | Picker International, Inc. | Multipl-tuned radio frequency coil for simultaneous magnetic resonance imaging and spectroscopy |
US5617859A (en) * | 1995-10-02 | 1997-04-08 | General Electric Company | Apparatus and methods for magnetic resonance (MR) imaging of cavities using fluids polarized at low temperatures |
DE19624682C2 (de) * | 1996-06-20 | 1998-04-16 | Siemens Ag | Sende- und/oder Empfangseinrichtung für ein diagnostisches Magnetresonanzgerät |
US5783943A (en) * | 1996-11-27 | 1998-07-21 | Mastandrea, Jr.; Nicholas J. | Method and apparatus for positioning an insert gradient coil within an examination region of a magnetic resonance imaging apparatus |
US5998999A (en) * | 1996-12-12 | 1999-12-07 | Picker International, Inc. | Volume RF coils with integrated high resolution focus coils for magnetic resonance imaging |
US5990681A (en) * | 1997-10-15 | 1999-11-23 | Picker International, Inc. | Low-cost, snap-in whole-body RF coil with mechanically switchable resonant frequencies |
US6081120A (en) * | 1998-05-20 | 2000-06-27 | Shen; Gary G | Universal-multi-layered, multi-tuned RF probe for MRI and MRS |
-
1998
- 1998-05-08 US US09/075,117 patent/US6211677B1/en not_active Expired - Lifetime
-
1999
- 1999-05-06 DE DE69925193T patent/DE69925193T2/de not_active Expired - Lifetime
- 1999-05-06 EP EP99303544A patent/EP0955554B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0955554B1 (de) | 2005-05-11 |
EP0955554A2 (de) | 1999-11-10 |
US6211677B1 (en) | 2001-04-03 |
DE69925193T2 (de) | 2006-02-23 |
EP0955554A3 (de) | 2001-07-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8364 | No opposition during term of opposition |