DE3664003D1 - Magnetic resonance imaging apparatus including two orthogonal r.f. coils - Google Patents
Magnetic resonance imaging apparatus including two orthogonal r.f. coilsInfo
- Publication number
- DE3664003D1 DE3664003D1 DE8686200433T DE3664003T DE3664003D1 DE 3664003 D1 DE3664003 D1 DE 3664003D1 DE 8686200433 T DE8686200433 T DE 8686200433T DE 3664003 T DE3664003 T DE 3664003T DE 3664003 D1 DE3664003 D1 DE 3664003D1
- Authority
- DE
- Germany
- Prior art keywords
- coils
- orthogonal
- magnetic resonance
- imaging apparatus
- apparatus including
- 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
Links
- 238000002595 magnetic resonance imaging Methods 0.000 title 1
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
- G01R33/3678—Electrical details, e.g. matching or coupling of the coil to the receiver involving quadrature drive or detection, e.g. a circularly polarized RF magnetic field
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8500844A NL8500844A (nl) | 1985-03-22 | 1985-03-22 | Mr apparaat met twee orthogonale rf spoelenpaar. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3664003D1 true DE3664003D1 (en) | 1989-07-20 |
Family
ID=19845726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686200433T Expired DE3664003D1 (en) | 1985-03-22 | 1986-03-19 | Magnetic resonance imaging apparatus including two orthogonal r.f. coils |
Country Status (5)
Country | Link |
---|---|
US (1) | US4712069A (de) |
EP (1) | EP0196134B1 (de) |
JP (1) | JPS61226028A (de) |
DE (1) | DE3664003D1 (de) |
NL (1) | NL8500844A (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4684895A (en) * | 1985-08-05 | 1987-08-04 | Picker International, Inc. | Interface system for NMR spectrometer and quadrature probe |
US4918388A (en) * | 1985-08-14 | 1990-04-17 | Picker International, Inc. | Quadrature surface coils for magnetic resonance imaging |
NL8603005A (nl) * | 1986-11-27 | 1988-06-16 | Philips Nv | Magnetisch resonantie apparaat met flexibele quadratuur spoelenstelsel. |
NL8603253A (nl) * | 1986-12-22 | 1988-07-18 | Philips Nv | Kernspinresonantie-apparaat met draaiveldopwekking en detektie. |
US4731585A (en) * | 1987-02-24 | 1988-03-15 | Kabushiki Kaisha Toshiba | Antenna coupling circuit for magnetic resonance imaging |
IL82658A (en) * | 1987-05-26 | 1990-12-23 | Elscint Ltd | Balun circuit for radio frequency coils in mr systems |
IL82716A (en) * | 1987-05-29 | 1992-08-18 | Elscint Ltd | Quadrature combiner |
US4763076A (en) * | 1987-09-01 | 1988-08-09 | The Regents Of The University Of California | MRI transmit coil disable switching via RF in/out cable |
NL8801077A (nl) * | 1988-04-26 | 1989-11-16 | Philips Nv | Magnetisch resonantie apparaat met ontkoppelde rf-spoelen. |
EP0361190A1 (de) * | 1988-09-23 | 1990-04-04 | Siemens Aktiengesellschaft | Oberflächenspulenanordnung für Untersuchungen mit Hilfe der kernnmagnetischen Resonanz |
DE3918743A1 (de) * | 1989-06-08 | 1990-12-13 | Philips Patentverwaltung | Hochfrequenz-quadraturspulenanordnung |
DE4030878A1 (de) * | 1990-09-29 | 1992-04-02 | Siemens Ag | Doppel-oberflaechenspule fuer ein kernspinresonanzgeraet |
US5296814A (en) * | 1992-04-15 | 1994-03-22 | General Electric Company | Tunable signal coupler for a magnetic resonance imaging system |
US5483158A (en) * | 1993-10-21 | 1996-01-09 | The Regents Of The University Of California | Method and apparatus for tuning MRI RF coils |
US5610520A (en) * | 1994-02-24 | 1997-03-11 | Medrad Inc. | Automatic orthogonality adjustment device for a quadrature surface coil for magnetic resonance imaging or spectroscopy |
JP3812368B2 (ja) * | 2001-06-06 | 2006-08-23 | 豊田合成株式会社 | Iii族窒化物系化合物半導体素子及びその製造方法 |
JP2005520658A (ja) | 2002-03-21 | 2005-07-14 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Mriシステムに対するコンバイナ/スプリッタ装置 |
US7714581B2 (en) * | 2006-04-19 | 2010-05-11 | Wisconsin Alumni Research Foundation | RF coil assembly for magnetic resonance imaging and spectroscopy systems |
JP2009279422A (ja) * | 2009-07-21 | 2009-12-03 | Ge Healthcare Japan Corp | Rfコイルおよび磁気共鳴撮影装置 |
US10092351B2 (en) * | 2015-02-11 | 2018-10-09 | Elwha Llc | Minimally-invasive tissue ablation using high contrast electric fields |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4095168A (en) * | 1977-02-22 | 1978-06-13 | Varian Associates, Inc. | Rf pick-up coil circuit for a wide tuning range nuclear magnetic resonance probe |
DE3175414D1 (en) * | 1980-08-29 | 1986-11-06 | Technicare Corp | Distributed phase rf coil |
US4446431A (en) * | 1981-08-24 | 1984-05-01 | Monsanto Company | Double-tuned single coil probe for nuclear magnetic resonance spectrometer |
JPS59501173A (ja) * | 1982-06-28 | 1984-07-05 | オックスフォ−ド・リサ−チ・システムズ・リミテッド | 核磁気共鳴スペクトロメータ用のプローブアセンブリおよびその使用法 |
JPS6129775A (ja) * | 1984-07-20 | 1986-02-10 | Mitsubishi Electric Corp | 高周波磁場発生・検出器 |
-
1985
- 1985-03-22 NL NL8500844A patent/NL8500844A/nl not_active Application Discontinuation
-
1986
- 1986-03-18 US US06/841,132 patent/US4712069A/en not_active Expired - Fee Related
- 1986-03-19 EP EP86200433A patent/EP0196134B1/de not_active Expired
- 1986-03-19 JP JP61061966A patent/JPS61226028A/ja active Pending
- 1986-03-19 DE DE8686200433T patent/DE3664003D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS61226028A (ja) | 1986-10-07 |
EP0196134A1 (de) | 1986-10-01 |
US4712069A (en) | 1987-12-08 |
NL8500844A (nl) | 1986-10-16 |
EP0196134B1 (de) | 1989-06-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |