ATE125628T1 - Käfigspule mit doppelter abstimmung. - Google Patents
Käfigspule mit doppelter abstimmung.Info
- Publication number
- ATE125628T1 ATE125628T1 AT90905934T AT90905934T ATE125628T1 AT E125628 T1 ATE125628 T1 AT E125628T1 AT 90905934 T AT90905934 T AT 90905934T AT 90905934 T AT90905934 T AT 90905934T AT E125628 T1 ATE125628 T1 AT E125628T1
- Authority
- AT
- Austria
- Prior art keywords
- cage coil
- pass
- bird cage
- network
- combination
- 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
- G01R33/32—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
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Coils Or Transformers For Communication (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/331,935 US4916418A (en) | 1989-03-31 | 1989-03-31 | Double tuned bird cage coil |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE125628T1 true ATE125628T1 (de) | 1995-08-15 |
Family
ID=23295990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT90905934T ATE125628T1 (de) | 1989-03-31 | 1990-02-26 | Käfigspule mit doppelter abstimmung. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4916418A (de) |
EP (1) | EP0465568B1 (de) |
JP (1) | JPH04504217A (de) |
AT (1) | ATE125628T1 (de) |
DE (1) | DE69021206T2 (de) |
WO (1) | WO1990012328A1 (de) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5144240A (en) * | 1985-08-14 | 1992-09-01 | Picker International, Inc. | Nmr spectroscopy and imaging coil |
US5038105A (en) * | 1990-02-09 | 1991-08-06 | Spectroscopy Imaging Systems Corporation | Series/parallel double-tuned NMR coils |
US5057778A (en) * | 1990-03-29 | 1991-10-15 | Spectroscopy Imaging Systems Corporation | Double tuned nmr coils |
US5081418A (en) * | 1990-04-30 | 1992-01-14 | General Electric Company | Method and apparatus for tuning an nmr field coil |
NL9001298A (nl) * | 1990-06-08 | 1992-01-02 | Philips Nv | Rf spoelenstelsel in magnetisch resonantie apparaat. |
US5166621A (en) * | 1990-10-26 | 1992-11-24 | Spectroscopy Imaging Systems Corporation | Multi-resonant nmr coils |
US5196797A (en) * | 1990-10-31 | 1993-03-23 | Toshiba America Mri, Inc. | Method of correcting an asymmetry in an NMR radio frequency coil and an improved radio frequency coil having N-fold symmetry and reduced eddy current |
US5202635A (en) * | 1991-01-17 | 1993-04-13 | Fox Chase Cancer Center | Radio frequency volume resonator for nuclear magnetic resonance |
US5162739A (en) * | 1991-04-05 | 1992-11-10 | F. David Doty | Balanced multi-tuned high-power broadband coil for nmr |
US5675254A (en) * | 1993-06-02 | 1997-10-07 | The Board Of Trustees Of The University Of Illinois | Double-resonance MRI coil |
US5412322A (en) * | 1993-06-24 | 1995-05-02 | Wollin Ventures, Inc. | Apparatus and method for spatially ordered phase encoding and for determining complex permittivity in magnetic resonance by using superimposed time-varying electric fields |
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 |
US5515855A (en) * | 1994-08-05 | 1996-05-14 | Sloan-Kettering Institute For Cancer Research | Dome-shaped resonator for nuclear magnetic resonance imaging and spectroscopy |
US5744957A (en) * | 1995-08-15 | 1998-04-28 | Uab Research Foundation | Cavity resonator for NMR systems |
EP1230559A2 (de) | 1999-05-21 | 2002-08-14 | The General Hospital Corporation | Tem resonator für die bildgebung mittels magnetischer resonanz |
US7598739B2 (en) * | 1999-05-21 | 2009-10-06 | Regents Of The University Of Minnesota | Radio frequency gradient, shim and parallel imaging coil |
CN1466691A (zh) * | 2000-07-31 | 2004-01-07 | �����մ��ѧ����� | 射频磁场装置 |
JP2003143028A (ja) * | 2001-11-01 | 2003-05-16 | Sharp Corp | 低雑音コンバータ |
US7119541B2 (en) * | 2004-03-03 | 2006-10-10 | Xlr Imaging Inc. | Multiply-tuned volume resonator for magnetic resonance imaging and spectroscopy |
US20050264291A1 (en) * | 2004-05-07 | 2005-12-01 | Vaughan J T | Multi-current elements for magnetic resonance radio frequency coils |
US7292038B2 (en) * | 2005-05-02 | 2007-11-06 | Doty Scientific, Inc. | Double-balanced double-tuned CP birdcage with similar field profiles |
JP2007325826A (ja) * | 2006-06-09 | 2007-12-20 | Hitachi Ltd | 2重同調rfコイル |
JP4869029B2 (ja) * | 2006-11-09 | 2012-02-01 | 株式会社日立製作所 | コイル装置及びそれを用いた磁気共鳴検査装置 |
WO2008075614A1 (ja) * | 2006-12-21 | 2008-06-26 | Hitachi, Ltd. | 核磁気共鳴計測装置およびコイルユニット |
JP4879811B2 (ja) * | 2007-04-23 | 2012-02-22 | 株式会社日立製作所 | コイル装置及びそれを用いた磁気共鳴検査装置 |
US7446532B1 (en) * | 2007-07-18 | 2008-11-04 | Varian, Inc. | Arched saddle-shaped NMR RF coils |
US8049502B2 (en) * | 2008-07-18 | 2011-11-01 | The Board Of Trustees Of The University Of Illinois | Tunable radio-frequency coil |
US8680863B1 (en) | 2009-11-24 | 2014-03-25 | The Florida State University Research Foundation, Inc. | Double resonance MRI coil design |
US9274189B2 (en) * | 2009-11-30 | 2016-03-01 | Hitachi Medical Corporation | High-frequency coil unit and magnetic resonance imaging device |
WO2012023385A1 (ja) | 2010-08-17 | 2012-02-23 | 株式会社 日立メディコ | 高周波コイルおよびそれを用いた磁気共鳴撮像装置 |
DE102011006157B4 (de) | 2011-03-25 | 2016-06-16 | Bruker Biospin Ag | Doppelt abgestimmter HF-Resonator |
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 |
US10551449B2 (en) | 2017-01-11 | 2020-02-04 | Neva Electromagnetics, LLC | Whole body non-contact electrical stimulation device with variable parameters |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4692705A (en) * | 1983-12-23 | 1987-09-08 | General Electric Company | Radio frequency field coil for NMR |
US4680548A (en) * | 1984-10-09 | 1987-07-14 | General Electric Company | Radio frequency field coil for NMR |
US4742304A (en) * | 1986-05-02 | 1988-05-03 | Phospho-Energetics, Inc. | Multiple tuning NMR probe |
US4833409A (en) * | 1987-12-21 | 1989-05-23 | General Electric Company | Apparatus for dynamically disabling an NMR field coil |
US4820985A (en) * | 1988-04-06 | 1989-04-11 | General Electric Company | Apparatus for tuning an NMR field coil |
US4833412A (en) * | 1988-04-08 | 1989-05-23 | Varian Associates, Inc. | Double tuned circuit for distributed lumped capacitance observe coils |
-
1989
- 1989-03-31 US US07/331,935 patent/US4916418A/en not_active Expired - Lifetime
-
1990
- 1990-02-26 DE DE69021206T patent/DE69021206T2/de not_active Expired - Lifetime
- 1990-02-26 WO PCT/US1990/001071 patent/WO1990012328A1/en active IP Right Grant
- 1990-02-26 AT AT90905934T patent/ATE125628T1/de not_active IP Right Cessation
- 1990-02-26 EP EP90905934A patent/EP0465568B1/de not_active Expired - Lifetime
- 1990-02-26 JP JP2505837A patent/JPH04504217A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0465568A1 (de) | 1992-01-15 |
DE69021206D1 (de) | 1995-08-31 |
EP0465568A4 (en) | 1992-04-15 |
EP0465568B1 (de) | 1995-07-26 |
US4916418A (en) | 1990-04-10 |
JPH04504217A (ja) | 1992-07-30 |
WO1990012328A1 (en) | 1990-10-18 |
DE69021206T2 (de) | 1996-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |