JP4768235B2 - Ｒｆコイル・アセンブリ - Google Patents
Ｒｆコイル・アセンブリ Download PDFInfo
- Publication number
- JP4768235B2 JP4768235B2 JP2004167143A JP2004167143A JP4768235B2 JP 4768235 B2 JP4768235 B2 JP 4768235B2 JP 2004167143 A JP2004167143 A JP 2004167143A JP 2004167143 A JP2004167143 A JP 2004167143A JP 4768235 B2 JP4768235 B2 JP 4768235B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- switch
- dynamic
- coil assembly
- electrically coupled
- 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
- 239000004020 conductor Substances 0.000 claims description 75
- 239000003990 capacitor Substances 0.000 claims description 40
- 238000002595 magnetic resonance imaging Methods 0.000 claims description 25
- 238000003384 imaging method Methods 0.000 claims description 11
- 230000001939 inductive effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 21
- 230000005540 biological transmission Effects 0.000 description 4
- -1 but not limited to Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 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
- G01R33/34—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
- G01R33/345—Constructional details, e.g. resonators, specially adapted to MR of waveguide type
- G01R33/3453—Transverse electromagnetic [TEM] 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
- G01R33/34007—Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/456,816 US6791328B1 (en) | 2003-06-06 | 2003-06-06 | Method and apparatus for very high field magnetic resonance imaging systems |
| US10/456,816 | 2003-06-06 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004358259A JP2004358259A (ja) | 2004-12-24 |
| JP2004358259A5 JP2004358259A5 (enExample) | 2007-07-12 |
| JP4768235B2 true JP4768235B2 (ja) | 2011-09-07 |
Family
ID=32927730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004167143A Expired - Lifetime JP4768235B2 (ja) | 2003-06-06 | 2004-06-04 | Ｒｆコイル・アセンブリ |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6791328B1 (enExample) |
| JP (1) | JP4768235B2 (enExample) |
| DE (1) | DE102004027026A1 (enExample) |
| NL (1) | NL1026328C2 (enExample) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1581818A2 (en) * | 2002-11-27 | 2005-10-05 | Koninklijke Philips Electronics N.V. | Degenerate birdcage coil and transmit/receive apparatus and method for same |
| JP2006175058A (ja) * | 2004-12-22 | 2006-07-06 | Ge Medical Systems Global Technology Co Llc | コイルエレメント選択方法および磁気共鳴イメージング装置 |
| JP2008532609A (ja) * | 2005-03-10 | 2008-08-21 | 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 | 超短ｍｒｉボディコイル |
| JP4327119B2 (ja) * | 2005-04-22 | 2009-09-09 | 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 | 切換装置、ｒｆコイル及び磁気共鳴撮像装置 |
| RU2417380C2 (ru) * | 2005-05-06 | 2011-04-27 | Конинклейке Филипс Электроникс Н.В. | Электромагнитное экранирование для mri-катушек с сильным полем |
| CN101198882A (zh) * | 2005-06-16 | 2008-06-11 | 皇家飞利浦电子股份有限公司 | 具有可选择视场的rf体线圈 |
| EP2016436A1 (en) * | 2006-04-24 | 2009-01-21 | Koninklijke Philips Electronics N.V. | Simple decoupling of a multi-element rf coil, enabling also detuning and matching functionality |
| WO2009032336A1 (en) * | 2007-09-07 | 2009-03-12 | The Johns Hopkins University | Sar dosimeter for rf power deposition in mri and methods and systems related thereto |
| DE102007053483B4 (de) | 2007-11-09 | 2013-04-11 | Imst Gmbh | Resonatorsegmente in modifizierter Microstrip-Technik für eine Antennenvorrichtung eines Ultrahochfeld-Magnetresonanz-Tomographen |
| US8598877B2 (en) * | 2009-12-14 | 2013-12-03 | General Electric Company | System and method for coil disabling in magnetic resonance imaging |
| CN103926545B (zh) * | 2013-01-10 | 2017-09-19 | 西门子(深圳)磁共振有限公司 | 一种发射天线选择器和磁共振成像系统 |
| FR3053474B1 (fr) * | 2016-07-01 | 2020-07-31 | Commissariat Energie Atomique | Antenne volumique desaccordable pour appareil d’imagerie par resonance magnetique nucleaire |
| US10852373B2 (en) | 2016-09-21 | 2020-12-01 | Quality Electrodynamics, Llc | Modulating magnetic resonance imaging transmit field in magnetic resonance fingerprinting using single layer transmit/receive radio frequency coil |
| US10386430B2 (en) * | 2016-09-21 | 2019-08-20 | Quality Electrodynamics, Llc | Single layer magnetic resonance imaging transmit/receive radio frequency coil |
| EP3559690B1 (en) * | 2016-12-22 | 2021-08-18 | Koninklijke Philips N.V. | Rf coil device and rf shield device for different mri modes |
| US10551449B2 (en) * | 2017-01-11 | 2020-02-04 | Neva Electromagnetics, LLC | Whole body non-contact electrical stimulation device with variable parameters |
| US11156682B2 (en) | 2017-03-24 | 2021-10-26 | Quality Electrodynamics, Llc | Single layer magnetic resonance imaging transmit/receive radio frequency coil for different anatomies |
| US10976388B2 (en) | 2017-03-24 | 2021-04-13 | Quality Electrodynamics, Llc | Minimizing intravascular magnetic resonance imaging (MRI) guidewire heating with single layer MRI transmit/receive radio frequency coil |
| US10649048B2 (en) | 2017-04-28 | 2020-05-12 | Quality Electrodynamics, Llc | Single layer magnetic resonance imaging (MRI) transmit/receive (TX/RX) radio frequency (RF) coil with integrated shimming |
| US11193992B2 (en) | 2017-05-05 | 2021-12-07 | Quality Electrodynamics, Llc | Single layer magnetic resonance imaging (MRI) transmit/receive (Tx/Rx) radio frequency (RF) coil with induced current failsafe protection |
| US10838028B2 (en) | 2017-06-19 | 2020-11-17 | Quality Electrodynamics, Llc | Decoupling magnetic resonance imaging (MRI) radio frequency (RF) coil elements with high acceleration factor in parallel transmit (pTx) or receive (Rx) coils using fewer channels |
| CN108389681B (zh) * | 2018-02-01 | 2020-01-24 | 清华大学 | 耦合度增强的变压器结构 |
| KR102633694B1 (ko) | 2021-11-30 | 2024-02-07 | 가천대학교 산학협력단 | 자기공명영상용 rf 코일 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4620155A (en) | 1984-08-16 | 1986-10-28 | General Electric Company | Nuclear magnetic resonance imaging antenna subsystem having a plurality of non-orthogonal surface coils |
| US4680548A (en) | 1984-10-09 | 1987-07-14 | General Electric Company | Radio frequency field coil for NMR |
| NL8603252A (nl) * | 1986-12-22 | 1988-07-18 | Philips Nv | Magnetisch resonantie-apparaat met verstemde rf-spoel. |
| NL8603251A (nl) | 1986-12-22 | 1988-07-18 | Philips Nv | Magnetisch resonantie-apparaat met inschakelbare bird-cage r.f.-spoel. |
| JPS6443241A (en) | 1987-08-10 | 1989-02-15 | Toshiba Corp | Probe coil apparatus for magnetic resonance imaging apparatus |
| US4833409A (en) | 1987-12-21 | 1989-05-23 | General Electric Company | Apparatus for dynamically disabling an NMR field coil |
| US4887039A (en) | 1988-12-22 | 1989-12-12 | General Electric Company | Method for providing multiple coaxial cable connections to a radio-frequency antenna without baluns |
| DE9012639U1 (de) | 1989-09-18 | 1990-10-31 | Siemens AG, 8000 München | Fehlersichere Entkopplung von Sende- und Empfangsantennen bei Kernspinresonanzgeräten |
| US5179332A (en) * | 1991-08-16 | 1993-01-12 | General Electric Company | NMR radio frequency coil with disable circuit |
| US5243287A (en) | 1992-04-27 | 1993-09-07 | General Electric Company | Dynamically detuned NMR field coil |
| JP3510361B2 (ja) * | 1995-01-10 | 2004-03-29 | ジーイー横河メディカルシステム株式会社 | Ｍｒｉ用バードケージコイル |
| JP3512897B2 (ja) * | 1995-03-28 | 2004-03-31 | ジーイー横河メディカルシステム株式会社 | Ｍｒｉ用バードケージコイル |
| JP3519818B2 (ja) * | 1995-04-20 | 2004-04-19 | ジーイー横河メディカルシステム株式会社 | Ｍｒｉ用平面型コイル |
| US5777474A (en) | 1996-11-08 | 1998-07-07 | Advanced Imaging Research, Inc. | Radio-frequency coil and method for resonance imaging/analysis |
| US5998999A (en) * | 1996-12-12 | 1999-12-07 | Picker International, Inc. | Volume RF coils with integrated high resolution focus coils for magnetic resonance imaging |
| US6236206B1 (en) | 1999-04-23 | 2001-05-22 | Varian, Inc. | Globally tunable birdcage coil and method for using same |
| US6522143B1 (en) * | 1999-09-17 | 2003-02-18 | Koninklijke Philips Electronics, N. V. | Birdcage RF coil employing an end ring resonance mode for quadrature operation in magnetic resonance imaging |
| US6501274B1 (en) * | 1999-10-15 | 2002-12-31 | Nova Medical, Inc. | Magnetic resonance imaging system using coils having paraxially distributed transmission line elements with outer and inner conductors |
| AU2001263072A1 (en) * | 2000-05-11 | 2001-11-20 | Uab Research Foundation | High frequency large volume resonator |
| JP2002306442A (ja) * | 2001-04-05 | 2002-10-22 | Ge Medical Systems Global Technology Co Llc | 磁気共鳴撮像用コイル |
| US6552544B2 (en) | 2001-04-05 | 2003-04-22 | Varian, Inc. | Detunable coil assembly and method of detuning RF coil for MRI |
| US6538441B1 (en) | 2001-10-12 | 2003-03-25 | General Electric Company | RF coil for reduced electric field exposure for use in very high field magnetic resonance imaging |
-
2003
- 2003-06-06 US US10/456,816 patent/US6791328B1/en not_active Expired - Lifetime
-
2004
- 2004-06-02 DE DE102004027026A patent/DE102004027026A1/de not_active Withdrawn
- 2004-06-03 NL NL1026328A patent/NL1026328C2/nl active Search and Examination
- 2004-06-04 JP JP2004167143A patent/JP4768235B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL1026328C2 (nl) | 2005-10-11 |
| DE102004027026A1 (de) | 2004-12-23 |
| JP2004358259A (ja) | 2004-12-24 |
| US6791328B1 (en) | 2004-09-14 |
| NL1026328A1 (nl) | 2004-12-07 |
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