DE60225399D1 - Schaltkreis zur aktiven Entkoppelung von Sendespulen in Kernspinresonanztomographen, insbesondere vom Niedrigfeld-Typus - Google Patents
Schaltkreis zur aktiven Entkoppelung von Sendespulen in Kernspinresonanztomographen, insbesondere vom Niedrigfeld-TypusInfo
- Publication number
- DE60225399D1 DE60225399D1 DE60225399T DE60225399T DE60225399D1 DE 60225399 D1 DE60225399 D1 DE 60225399D1 DE 60225399 T DE60225399 T DE 60225399T DE 60225399 T DE60225399 T DE 60225399T DE 60225399 D1 DE60225399 D1 DE 60225399D1
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- magnetic resonance
- resonance imaging
- field type
- pin diode
- 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
- 238000002595 magnetic resonance imaging Methods 0.000 title 1
- 230000005284 excitation Effects 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 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
- G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
- G01R33/3657—Decoupling of multiple RF coils wherein the multiple RF coils do not have the same function in MR, e.g. decoupling of a transmission coil from a receive coil
-
- 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)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2001SV000039A ITSV20010039A1 (it) | 2001-10-31 | 2001-10-31 | Circuito didisaccoppiamento di bobine di trasmissione nelle macchine per il rilevamento d'immagini di risonanza |
ITSV20010039 | 2001-10-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60225399D1 true DE60225399D1 (de) | 2008-04-17 |
DE60225399T2 DE60225399T2 (de) | 2009-04-09 |
Family
ID=11457110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60225399T Expired - Lifetime DE60225399T2 (de) | 2001-10-31 | 2002-10-28 | Schaltkreis zur aktiven Entkoppelung von Sendespulen in Kernspinresonanztomographen, insbesondere vom Niedrigfeld-Typus |
Country Status (6)
Country | Link |
---|---|
US (1) | US6798207B2 (de) |
EP (1) | EP1308742B1 (de) |
AT (1) | ATE388411T1 (de) |
DE (1) | DE60225399T2 (de) |
ES (1) | ES2302777T3 (de) |
IT (1) | ITSV20010039A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100277175A1 (en) * | 2006-08-15 | 2010-11-04 | Koninklijke Philips Electronics N.V. | Tunable and/or detunable mr receive coil arrangements |
DE102008044962B3 (de) * | 2008-08-29 | 2009-09-03 | Siemens Aktiengesellschaft | Vorrichtung und Verfahren zum Schalten einer PIN-Diode |
DE102012204798B3 (de) * | 2012-03-26 | 2013-04-11 | Bruker Biospin Ag | Elektronisches Interface für NMR-Empfangsresonatoren |
KR20210013567A (ko) | 2018-05-21 | 2021-02-04 | 하이퍼파인 리서치, 인크. | 저자계 mri 시스템용 무선 주파수 코일 신호 체인 |
JP7321487B2 (ja) * | 2018-09-13 | 2023-08-07 | 国立研究開発法人理化学研究所 | 磁気共鳴測定装置 |
US11171684B1 (en) * | 2020-06-05 | 2021-11-09 | Baker Hughes Oilfield Operations Llc | Control of tranmsitting and receving antenna properties to reduce electromagnetic coupling |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0113413A3 (de) | 1983-01-10 | 1985-05-08 | Cameron Iron Works, Inc. | Ringförmiges Ausblasventil |
DE3427666A1 (de) * | 1984-07-26 | 1986-02-06 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen | Schaltungsanordnung fuer einen messkopf eines kernspinresonanzgeraetes |
NL8603250A (nl) * | 1986-12-22 | 1988-07-18 | Philips Nv | Magnetisch resonantie-apparaat met pin-diode ontkoppelde detektiespoel. |
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 |
DE3853902D1 (de) * | 1987-09-08 | 1995-07-06 | Univ California | Ausschaltungssystem einer MRI-Transmissionsspule über ein RF Ein-/Aus-Kabel. |
US4881034A (en) * | 1988-01-19 | 1989-11-14 | The Regents Of The University Of California | Switchable MRI RF coil array with individual coils having different and overlapping fields of view |
DE9012639U1 (de) * | 1989-09-18 | 1990-10-31 | Siemens Ag, 8000 Muenchen, De | |
US5621323A (en) * | 1991-11-29 | 1997-04-15 | Magnetic Research, Inc. | Surface coil elements |
JPH088604A (ja) * | 1994-06-23 | 1996-01-12 | New Japan Radio Co Ltd | マイクロ波減衰装置 |
US6414488B1 (en) * | 2000-03-01 | 2002-07-02 | Koninklijke Philips Electronics N.V. | Method and apparatus for decoupling magnetic resonance receive coils |
-
2001
- 2001-10-31 IT IT2001SV000039A patent/ITSV20010039A1/it unknown
-
2002
- 2002-10-28 EP EP02024057A patent/EP1308742B1/de not_active Expired - Lifetime
- 2002-10-28 ES ES02024057T patent/ES2302777T3/es not_active Expired - Lifetime
- 2002-10-28 DE DE60225399T patent/DE60225399T2/de not_active Expired - Lifetime
- 2002-10-28 AT AT02024057T patent/ATE388411T1/de not_active IP Right Cessation
- 2002-10-30 US US10/283,151 patent/US6798207B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE60225399T2 (de) | 2009-04-09 |
EP1308742A1 (de) | 2003-05-07 |
US20030080801A1 (en) | 2003-05-01 |
ES2302777T3 (es) | 2008-08-01 |
EP1308742B1 (de) | 2008-03-05 |
US6798207B2 (en) | 2004-09-28 |
ITSV20010039A1 (it) | 2003-05-01 |
ATE388411T1 (de) | 2008-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |