NL8502273A - Magnetisch resonantie apparaat met bird cage r.f. spoel. - Google Patents
Magnetisch resonantie apparaat met bird cage r.f. spoel. Download PDFInfo
- Publication number
- NL8502273A NL8502273A NL8502273A NL8502273A NL8502273A NL 8502273 A NL8502273 A NL 8502273A NL 8502273 A NL8502273 A NL 8502273A NL 8502273 A NL8502273 A NL 8502273A NL 8502273 A NL8502273 A NL 8502273A
- Authority
- NL
- Netherlands
- Prior art keywords
- conductors
- magnetic resonance
- coil
- impedance
- resonance device
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims description 54
- 238000009826 distribution Methods 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 8
- 230000003071 parasitic effect Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 description 20
- 238000005859 coupling reaction Methods 0.000 description 20
- 230000008878 coupling Effects 0.000 description 14
- 238000001816 cooling Methods 0.000 description 6
- 238000012937 correction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
- G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
-
- 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
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
- G01R33/34076—Birdcage 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8502273A NL8502273A (nl) | 1985-08-19 | 1985-08-19 | Magnetisch resonantie apparaat met bird cage r.f. spoel. |
DE8686201360T DE3677292D1 (de) | 1985-08-19 | 1986-08-01 | Apparat zur bilderzeugung mittels magnetischer resonanz mit "bird-cage" hochfrequenzspule. |
US06/891,793 US4737718A (en) | 1985-08-19 | 1986-08-01 | Magnetic resonance imaging apparatus including a bird-cage r.f. coil |
EP86201360A EP0213665B1 (en) | 1985-08-19 | 1986-08-01 | Magnetic resonance imaging apparatus including a bird-cage r.f. coil |
CA000516019A CA1254618A (en) | 1985-08-19 | 1986-08-15 | Magnetic resonance imaging apparatus including a bird- cage r.f. coil |
FI863321A FI863321A (fi) | 1985-08-19 | 1986-08-15 | Magnetisk resonansavbildningsanordning omfattande en hoegfrekvensburspole. |
CN198686105283A CN86105283A (zh) | 1985-08-19 | 1986-08-16 | 包含鸟笼式射频线圈的磁谐振成像装置 |
IL79759A IL79759A0 (en) | 1985-08-19 | 1986-08-18 | Magnetic resonance imaging apparatus including a bird-cage r.f.coil |
KR1019860006782A KR870002447A (ko) | 1985-08-19 | 1986-08-18 | 자기공진 영상장치 |
BR8603929A BR8603929A (pt) | 1985-08-19 | 1986-08-18 | Aparelho de imagem de ressonancia magnetica o qual inclui uma bobina de radiofrequencia |
JP61192234A JPH0775601B2 (ja) | 1985-08-19 | 1986-08-19 | 磁気共鳴イメ−ジング装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8502273A NL8502273A (nl) | 1985-08-19 | 1985-08-19 | Magnetisch resonantie apparaat met bird cage r.f. spoel. |
NL8502273 | 1985-08-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL8502273A true NL8502273A (nl) | 1987-03-16 |
Family
ID=19846432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8502273A NL8502273A (nl) | 1985-08-19 | 1985-08-19 | Magnetisch resonantie apparaat met bird cage r.f. spoel. |
Country Status (11)
Country | Link |
---|---|
US (1) | US4737718A (fi) |
EP (1) | EP0213665B1 (fi) |
JP (1) | JPH0775601B2 (fi) |
KR (1) | KR870002447A (fi) |
CN (1) | CN86105283A (fi) |
BR (1) | BR8603929A (fi) |
CA (1) | CA1254618A (fi) |
DE (1) | DE3677292D1 (fi) |
FI (1) | FI863321A (fi) |
IL (1) | IL79759A0 (fi) |
NL (1) | NL8502273A (fi) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2208937B (en) * | 1987-08-21 | 1992-04-01 | Fuji Electric Co Ltd | High frequency coil |
US4833409A (en) * | 1987-12-21 | 1989-05-23 | General Electric Company | Apparatus for dynamically disabling an NMR field coil |
NL8802608A (nl) * | 1988-10-24 | 1990-05-16 | Philips Nv | Magnetisch resonantie apparaat met verbeterde rf spoel. |
NL8802609A (nl) * | 1988-10-24 | 1990-05-16 | Philips Nv | Magnetisch resonantie apparaat met geoptimaliseerd detectieveld. |
US5177441A (en) * | 1989-06-16 | 1993-01-05 | Picker International, Inc. | Elliptical cross section gradient oil |
EP0486590B1 (en) * | 1989-08-11 | 1996-11-27 | British Technology Group Ltd | Resonant cavities for nmr |
NL8903066A (nl) * | 1989-12-14 | 1991-07-01 | Philips Nv | Magnetisch resonantie apparaat met beeldfout reductie. |
NL9001298A (nl) * | 1990-06-08 | 1992-01-02 | Philips Nv | Rf spoelenstelsel in magnetisch resonantie apparaat. |
US5194811A (en) * | 1990-08-02 | 1993-03-16 | Fox Chase Cancer Center | Radio frequency volume resonator for nuclear magnetic resonance |
US5212450A (en) * | 1990-10-25 | 1993-05-18 | Fox Chase Cancer Center | Radio frequency volume resonator for nuclear magnetic resonance |
US5202635A (en) * | 1991-01-17 | 1993-04-13 | Fox Chase Cancer Center | Radio frequency volume resonator for nuclear magnetic resonance |
DE69221835T2 (de) * | 1991-12-11 | 1998-03-05 | Philips Electronics Nv | Magnetresonanzgerät mit einer Vogelkäfig-RF-Spule |
US5309104A (en) * | 1992-05-22 | 1994-05-03 | General Electric Company | Asymmetric radio frequency coil for magnetic resonance imaging |
US5387868A (en) * | 1992-09-29 | 1995-02-07 | U.S. Philips Corporation | Magnetic resonance apparatus |
US5557247A (en) * | 1993-08-06 | 1996-09-17 | Uab Research Foundation | Radio frequency volume coils for imaging and spectroscopy |
US5886596A (en) * | 1993-08-06 | 1999-03-23 | Uab Research Foundation | Radio frequency volume coils for imaging and spectroscopy |
US5483163A (en) * | 1993-08-12 | 1996-01-09 | The United States Of America As Represented By The Department Of Health And Human Services | MRI coil using inductively coupled individually tuned elements arranged as free-pivoting components |
US5744957A (en) * | 1995-08-15 | 1998-04-28 | Uab Research Foundation | Cavity resonator for NMR systems |
WO2000072033A2 (en) * | 1999-05-21 | 2000-11-30 | The General Hospital Corporation | Tem resonator for magnetic resonance imaging |
US7598739B2 (en) * | 1999-05-21 | 2009-10-06 | Regents Of The University Of Minnesota | Radio frequency gradient, shim and parallel imaging coil |
CA2417525A1 (en) * | 2000-07-31 | 2002-02-07 | Regents Of The University Of Minnesota | Open tem resonators for mri |
DE60225039T2 (de) * | 2001-10-24 | 2009-03-05 | Koninklijke Philips Electronics N.V. | Rf-spule mit zwei parallelen endleitern |
EP1514140A4 (en) * | 2002-05-17 | 2006-01-25 | Mr Instr Inc | CAVITY RESONATOR FOR MR SYSTEMS |
CN100526906C (zh) * | 2002-11-27 | 2009-08-12 | 皇家飞利浦电子股份有限公司 | 退化的笼式线圈和使用该线圈的磁共振成像***及方法 |
KR20070030208A (ko) * | 2004-05-07 | 2007-03-15 | 리전츠 오브 더 유니버스티 오브 미네소타 | 자기 공명 무선 주파수 코일용 다중 전류 요소 |
US7659719B2 (en) * | 2005-11-25 | 2010-02-09 | Mr Instruments, Inc. | Cavity resonator for magnetic resonance systems |
US8542017B2 (en) * | 2009-12-21 | 2013-09-24 | Nxp B.V. | System and method for measuring the shape of an organ of a patient using a magnetic induction radio sensor integrated in a stretchable strap |
JP5685476B2 (ja) * | 2011-04-11 | 2015-03-18 | 株式会社日立製作所 | 磁気共鳴イメージング装置 |
KR101631777B1 (ko) | 2011-10-26 | 2016-06-17 | 다이니치 세이카 고교 가부시키가이샤 | 방사성 요오드의 제거방법 및 방사성 요오드 제거용 친수성 수지 |
CA2859938C (en) | 2011-12-28 | 2016-11-15 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Method and hydrophilic resin composition for removal of radioactive iodine and/or radioactive cesium |
CN104054137B (zh) | 2012-01-18 | 2016-09-07 | 大日精化工业株式会社 | 放射性铯的除去方法、用于除去放射性铯的亲水性树脂组合物、放射性碘和放射性铯的除去方法以及用于除去放射性碘和放射性铯的亲水性树脂组合物 |
EP2825897B1 (en) | 2012-03-14 | 2021-08-25 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | A method for multi-mode, multi-load, and multi-domain optimization of a multi-channel near-field rf transmitter |
US9885766B2 (en) | 2012-04-17 | 2018-02-06 | Transarray LLC | Magnetic-resonance transceiver-phased array that compensates for reactive and resistive components of mutual impedance between array elements and circuit and method thereof |
CA2898272C (en) | 2013-02-19 | 2017-08-29 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Method for removing radioactive cesium, hydrophilic resin composition for removal of radioactive cesium, method for removing radioactive iodine and radioactive cesium, and hydrophilic resin composition for removal of radioactive iodine and radioactive cesium |
US10057642B2 (en) * | 2015-10-06 | 2018-08-21 | Comcast Cable Communications, Llc | Controlling the provision of power to one or more devices |
US11956503B2 (en) | 2015-10-06 | 2024-04-09 | Comcast Cable Communications, Llc | Controlling a device based on an audio input |
DE102016007832A1 (de) | 2016-06-27 | 2017-12-28 | Giesecke+Devrient Mobile Security Gmbh | Effizientes Authentifizieren |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2050062B (en) * | 1979-05-25 | 1983-07-20 | Emi Ltd | Coils for electromagnets with uniform fields |
US4439733A (en) * | 1980-08-29 | 1984-03-27 | Technicare Corporation | Distributed phase RF coil |
DE3133432A1 (de) * | 1981-08-24 | 1983-03-03 | Siemens AG, 1000 Berlin und 8000 München | Hochfrequenzfeld-einrichtung in einer kernspinresonanz-apparatur |
US4694255A (en) * | 1983-11-04 | 1987-09-15 | General Electric Company | Radio frequency field coil for NMR |
US5274332A (en) * | 1983-11-14 | 1993-12-28 | General Electric Company | Inductively coupled multi-section radio frequency field coil for NMR |
GB8334374D0 (en) * | 1983-12-23 | 1984-02-01 | Picker Int Ltd | Coil arrangements |
DE3347597A1 (de) * | 1983-12-30 | 1985-07-18 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Hochfrequenz-spulenanordnung zum erzeugen und/oder empfangen von wechselmagnetfeldern |
FI853150L (fi) * | 1984-10-09 | 1986-04-10 | Gen Electric | Radiofrekvensfaelt foer nmr. |
US4638253A (en) * | 1984-10-29 | 1987-01-20 | General Electric Company | Mutual inductance NMR RF coil matching device |
-
1985
- 1985-08-19 NL NL8502273A patent/NL8502273A/nl not_active Application Discontinuation
-
1986
- 1986-08-01 EP EP86201360A patent/EP0213665B1/en not_active Expired - Lifetime
- 1986-08-01 US US06/891,793 patent/US4737718A/en not_active Expired - Lifetime
- 1986-08-01 DE DE8686201360T patent/DE3677292D1/de not_active Expired - Lifetime
- 1986-08-15 FI FI863321A patent/FI863321A/fi not_active IP Right Cessation
- 1986-08-15 CA CA000516019A patent/CA1254618A/en not_active Expired
- 1986-08-16 CN CN198686105283A patent/CN86105283A/zh active Pending
- 1986-08-18 IL IL79759A patent/IL79759A0/xx not_active IP Right Cessation
- 1986-08-18 BR BR8603929A patent/BR8603929A/pt unknown
- 1986-08-18 KR KR1019860006782A patent/KR870002447A/ko not_active Application Discontinuation
- 1986-08-19 JP JP61192234A patent/JPH0775601B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI863321A0 (fi) | 1986-08-15 |
EP0213665B1 (en) | 1991-01-30 |
FI863321A (fi) | 1987-02-20 |
CA1254618A (en) | 1989-05-23 |
KR870002447A (ko) | 1987-03-31 |
JPS6244239A (ja) | 1987-02-26 |
IL79759A0 (en) | 1986-11-30 |
DE3677292D1 (de) | 1991-03-07 |
BR8603929A (pt) | 1987-03-24 |
CN86105283A (zh) | 1987-03-18 |
US4737718A (en) | 1988-04-12 |
EP0213665A1 (en) | 1987-03-11 |
JPH0775601B2 (ja) | 1995-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A1B | A search report has been drawn up | ||
BV | The patent application has lapsed |