DE102004033253A1 - Verfahren und Vorrichtung zur automatischen Aufrechterhaltung der Schleifenentkopplung bei positionsveränderlichen MRI-Spulen - Google Patents
Verfahren und Vorrichtung zur automatischen Aufrechterhaltung der Schleifenentkopplung bei positionsveränderlichen MRI-Spulen Download PDFInfo
- Publication number
- DE102004033253A1 DE102004033253A1 DE102004033253A DE102004033253A DE102004033253A1 DE 102004033253 A1 DE102004033253 A1 DE 102004033253A1 DE 102004033253 A DE102004033253 A DE 102004033253A DE 102004033253 A DE102004033253 A DE 102004033253A DE 102004033253 A1 DE102004033253 A1 DE 102004033253A1
- Authority
- DE
- Germany
- Prior art keywords
- coil
- mutual inductance
- coils
- inductor
- arrangement
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title abstract description 9
- 238000012423 maintenance Methods 0.000 title 1
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 230000007423 decrease Effects 0.000 claims description 19
- 230000001965 increasing effect Effects 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000002595 magnetic resonance imaging Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 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
- G01R33/36—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
- G01R33/365—Decoupling of multiple RF coils wherein the multiple RF coils have the same function in MR, e.g. decoupling of a receive coil from another receive coil in a receive coil array, decoupling of a transmission coil from another transmission coil in a transmission coil array
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/604,299 US6919723B2 (en) | 2003-07-09 | 2003-07-09 | Method and apparatus to automatically maintain loop isolation in position variant MRI coils |
| US10/604,299 | 2003-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102004033253A1 true DE102004033253A1 (de) | 2005-02-03 |
Family
ID=33564160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102004033253A Withdrawn DE102004033253A1 (de) | 2003-07-09 | 2004-07-08 | Verfahren und Vorrichtung zur automatischen Aufrechterhaltung der Schleifenentkopplung bei positionsveränderlichen MRI-Spulen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6919723B2 (https=) |
| JP (1) | JP2005028141A (https=) |
| CN (1) | CN1575751A (https=) |
| DE (1) | DE102004033253A1 (https=) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10114013B4 (de) * | 2001-03-22 | 2005-06-23 | Siemens Ag | Magnetresonanzanlage |
| KR100773079B1 (ko) * | 2005-06-03 | 2007-11-06 | 두영전자 주식회사 | 지연 소등 기능을 갖는 전자식 안정기 |
| US9851420B2 (en) | 2013-08-09 | 2017-12-26 | Schlumberger Technology Corporation | Magnetic resonance transmitter |
| WO2018098331A1 (en) | 2016-11-23 | 2018-05-31 | General Electric Company | An anterior radio frequency (rf) coil array for a magnetic resonance imaging (mri) system |
| WO2018098355A1 (en) | 2016-11-23 | 2018-05-31 | General Electric Company | A conforming posterior radio frequency (rf) coil array for a magnetic resonance imaging (mri) system |
| JP7086956B2 (ja) | 2016-11-23 | 2022-06-20 | ゼネラル・エレクトリック・カンパニイ | Ｍｒイメージング用の無線周波数コイルのシステム |
| CN109937367B (zh) | 2016-11-23 | 2023-04-18 | 通用电气公司 | 用于mr成像的射频线圈系统 |
| CN109952516B (zh) | 2016-11-23 | 2020-12-08 | 通用电气公司 | 用于mr成像的射频线圈系统 |
| US11624792B2 (en) | 2016-11-25 | 2023-04-11 | General Electric Company | Radio frequency head coil for a magnetic resonance imaging system and methods thereof |
| US10921399B2 (en) * | 2017-11-22 | 2021-02-16 | GE Precision Healthcare LLC | Radio frequency (RF) coil array for a magnetic resonance imaging (MRI) system for use in interventional and surgical procedures |
| US11011303B2 (en) * | 2018-08-21 | 2021-05-18 | Globalfoundries U.S. Inc. | Dummy fill with eddy current self-canceling element for inductor component |
| EP3709040B1 (de) * | 2019-03-13 | 2025-04-30 | Siemens Healthineers AG | Verfahren zum betrieb einer magnetfeldkamera |
| JP2024065663A (ja) * | 2022-10-31 | 2024-05-15 | 富士フイルムヘルスケア株式会社 | 高周波コイル装置及びそれを用いた磁気共鳴イメージング装置 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4825162A (en) * | 1987-12-07 | 1989-04-25 | General Electric Company | Nuclear magnetic resonance (NMR) imaging with multiple surface coils |
| US5243289A (en) * | 1991-08-09 | 1993-09-07 | The Trustees Of The University Of Pennsylvania | Multiply-tuned probe for magnetic resonance imaging or spectroscopy |
| US5302901A (en) * | 1991-08-26 | 1994-04-12 | U.S. Philips Corporation | Magnetic resonance apparatus comprising decoupled receiver coils |
| JP3216938B2 (ja) * | 1993-06-08 | 2001-10-09 | 株式会社日立製作所 | Ｍｒｉ用ｒｆプローブ及び磁気共鳴撮影装置 |
| GB9508635D0 (en) * | 1995-04-28 | 1995-06-14 | Mansfield Peter | Method and apparatus for elimination of mutual coupling in magnetic coils |
| US5804969A (en) * | 1995-07-28 | 1998-09-08 | Advanced Mammography Systems, Inc. | MRI RF coil |
| US5578925A (en) * | 1995-08-18 | 1996-11-26 | Picker International, Inc. | Vertical field quadrature phased array coil system |
| US5757189A (en) * | 1996-11-27 | 1998-05-26 | Picker International, Inc. | Arbitrary placement multimode coil system for MR imaging |
| US6169401B1 (en) * | 1998-11-25 | 2001-01-02 | Picker International, Inc. | Flexible open quadrature highpass ladder structure RF surface coil in magnetic resonance imaging |
| US6441615B1 (en) * | 1999-12-28 | 2002-08-27 | Koninklijke Philips Electronics, Nv | Crossed-ladder RF coils for vertical field MRI systems |
| US6534983B1 (en) * | 2000-12-29 | 2003-03-18 | Ge Medical Systems Global Technology Company, Llc | Multi-channel phased array coils having minimum mutual inductance for magnetic resonance systems |
| US6590392B2 (en) * | 2001-04-17 | 2003-07-08 | Ge Medical Systems Global Technology Co., Llc | Switchable FOV coil assembly having end saddle coils |
-
2003
- 2003-07-09 US US10/604,299 patent/US6919723B2/en not_active Expired - Fee Related
-
2004
- 2004-07-08 DE DE102004033253A patent/DE102004033253A1/de not_active Withdrawn
- 2004-07-08 JP JP2004201254A patent/JP2005028141A/ja not_active Withdrawn
- 2004-07-09 CN CNA2004100638076A patent/CN1575751A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005028141A (ja) | 2005-02-03 |
| CN1575751A (zh) | 2005-02-09 |
| US20050007116A1 (en) | 2005-01-13 |
| US6919723B2 (en) | 2005-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |