JP5571694B2 - アーチファクトの少ないmriのためのrf安全トランス結合伝送線路 - Google Patents
アーチファクトの少ないmriのためのrf安全トランス結合伝送線路 Download PDFInfo
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- JP5571694B2 JP5571694B2 JP2011547019A JP2011547019A JP5571694B2 JP 5571694 B2 JP5571694 B2 JP 5571694B2 JP 2011547019 A JP2011547019 A JP 2011547019A JP 2011547019 A JP2011547019 A JP 2011547019A JP 5571694 B2 JP5571694 B2 JP 5571694B2
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Images
Classifications
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- 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
- G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
- G01R33/287—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR involving active visualization of interventional instruments, e.g. using active tracking RF coils or coils for intentionally creating magnetic field inhomogeneities
-
- 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
- G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
-
- 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
- G01R33/3685—Means for reducing sheath currents, e.g. RF traps, baluns
-
- 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
- G01R33/288—Provisions within MR facilities for enhancing safety during MR, e.g. reduction of the specific absorption rate [SAR], detection of ferromagnetic objects in the scanner room
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Description
102 先端コイル
104 リードセグメント
106 結合素子
200 基板
300 先端コイル信号
302 トランス信号
304 トランス信号
306 リードセグメント信号
308 スポット
310 スポット
312 スポット
400 ホイル
500 ホイル
600 基板
602 磁性粒子を有する基板部分
700 ワイヤ
900 磁性粒子を有する基板
1000 磁性粒子
1002 ラッカー
Claims (14)
- 磁気共鳴システムの磁石ボアでの使用に適した導電性伝送線路であって、前記線路が前記線路の少なくとも2つのリードセグメントを結合するための少なくとも1つの誘導結合素子を有し、前記結合素子が常磁性及び/又は強磁性材料をさらに有する、伝送線路。
- 前記結合素子が常磁性及び/又は強磁性材料をマイクロコーティングとして有する、請求項1に記載の伝送線路。
- 前記マイクロコーティングが常磁性及び/又は強磁性材料をマイクロ及び/又はナノ粒子として有する、請求項2に記載の伝送線路。
- 前記マイクロコーティングが常磁性及び/又は強磁性粒子を有するラッカーコートによって形成される、請求項3に記載の伝送線路。
- 前記結合素子が常磁性及び/又は強磁性材料をワイヤとして、又はワイヤの複数の短い部分として有し、前記ワイヤが常磁性及び/又は強磁性材料を有する、請求項1に記載の伝送線路。
- 前記結合素子が基板上に含まれ、前記基板が常磁性及び/又は強磁性材料を有する、請求項1に記載の伝送線路。
- 常磁性及び/又は強磁性材料がホイルに含まれ、前記ホイルが前記結合素子に取り付けられる、請求項1に記載の伝送線路。
- キャリアチューブをさらに有し、前記キャリアチューブが前記伝送線路を包み、常磁性及び/又は強磁性材料が前記キャリアチューブ上に空間的に位置する、請求項1に記載の伝送線路。
- 前記結合素子がファラデーケージに包まれる、請求項1に記載の伝送線路。
- 前記ファラデーケージが常磁性及び/又は強磁性材料を有する、請求項9に記載の伝送線路。
- トラッキング又はイメージングのために使用される磁気共鳴コイルと、請求項1乃至10のいずれか一項に記載の伝送線路とを有する侵襲的医療機器であって、前記コイルが前記伝送線路のリードセグメントに電気的に接続される、機器。
- 前記機器がカテーテルである、請求項11に記載の機器。
- 前記ファラデーケージが前記結合素子を包む同軸チューブを有する、請求項9に記載の伝送線路。
- 前記ファラデーケージが前記結合素子の周りに巻き付けられるホイルを有する、請求項9に記載の伝送線路。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09151395 | 2009-01-27 | ||
EP09151395.2 | 2009-01-27 | ||
PCT/IB2010/050245 WO2010086762A1 (en) | 2009-01-27 | 2010-01-20 | Rf safe transformer- coupled transmission line for mri with reduced artifacts |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012515600A JP2012515600A (ja) | 2012-07-12 |
JP5571694B2 true JP5571694B2 (ja) | 2014-08-13 |
Family
ID=41822408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011547019A Active JP5571694B2 (ja) | 2009-01-27 | 2010-01-20 | アーチファクトの少ないmriのためのrf安全トランス結合伝送線路 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8643372B2 (ja) |
JP (1) | JP5571694B2 (ja) |
CN (1) | CN102292649B (ja) |
DE (1) | DE112010000844B4 (ja) |
GB (1) | GB2481149B (ja) |
WO (1) | WO2010086762A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010086762A1 (en) * | 2009-01-27 | 2010-08-05 | Koninklijke Philips Electronics N.V. | Rf safe transformer- coupled transmission line for mri with reduced artifacts |
EP2597481A1 (en) | 2011-11-22 | 2013-05-29 | Koninklijke Philips Electronics N.V. | RF-safe interventional or non-interventional instrument for use in an MRI apparatus |
DE102014226888B4 (de) * | 2014-12-22 | 2024-05-08 | Leoni Kabel Gmbh | Koppelvorrichtung zur kontaktfreien Übertragung von Datensignalen sowie Verfahren zur Übertragung von Datensignalen |
DE102016208018A1 (de) * | 2016-05-10 | 2017-11-16 | Siemens Healthcare Gmbh | Verfahren zu einem Bereitstellen einer Anwendungsinformation für eine Magnetresonanzuntersuchung an einem Patienten sowie eine Magnetresonanzvorrichtung |
WO2017201000A1 (en) * | 2016-05-16 | 2017-11-23 | The Johns Hopkins University | Rf safe transmission line for mri |
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 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5782764A (en) * | 1995-11-07 | 1998-07-21 | Iti Medical Technologies, Inc. | Fiber composite invasive medical instruments and methods for use in interventional imaging procedures |
US5807253A (en) * | 1997-10-06 | 1998-09-15 | General Electrical Company | Patient electrical isolation system |
DE19958408A1 (de) * | 1999-12-02 | 2001-06-07 | Philips Corp Intellectual Pty | MR-Anordnung und MR-Verfahren zur Lokalisierung und/oder Visualisierung eines mit einer passiven Magnetvorrichtung ausgestatteten medizinischen Instruments |
DE10105984C1 (de) * | 2001-02-09 | 2002-10-31 | Siemens Ag | Koaxialkabel und Magnetresonanzanlage mit einem solchen Koaxialkabel |
DE10249239A1 (de) * | 2002-10-23 | 2004-05-06 | Philips Intellectual Property & Standards Gmbh | Magnetresonanz-Bildgerät mit elektrischer Zusatzeinrichtung |
EP1743186B1 (en) * | 2004-04-23 | 2017-07-26 | Koninklijke Philips N.V. | Magnetic resonance imaging system provided with an electrical accessory device |
CN1977179A (zh) * | 2004-06-28 | 2007-06-06 | 皇家飞利浦电子股份有限公司 | 在rf场中使用的传输线 |
EP3141921B1 (en) * | 2004-12-20 | 2019-02-20 | Koninklijke Philips N.V. | Transmission path for use in rf fields |
CN101505672B (zh) * | 2006-08-22 | 2012-02-08 | 皇家飞利浦电子股份有限公司 | Rf场中使用的进行rf消融的介入装置 |
US7834270B2 (en) * | 2008-07-07 | 2010-11-16 | Imris Inc. | Floating segmented shield cable assembly |
WO2010086762A1 (en) * | 2009-01-27 | 2010-08-05 | Koninklijke Philips Electronics N.V. | Rf safe transformer- coupled transmission line for mri with reduced artifacts |
-
2010
- 2010-01-20 WO PCT/IB2010/050245 patent/WO2010086762A1/en active Application Filing
- 2010-01-20 CN CN201080005434.0A patent/CN102292649B/zh active Active
- 2010-01-20 JP JP2011547019A patent/JP5571694B2/ja active Active
- 2010-01-20 GB GB1114818.6A patent/GB2481149B/en active Active
- 2010-01-20 DE DE112010000844.2T patent/DE112010000844B4/de active Active
- 2010-01-20 US US13/142,900 patent/US8643372B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
GB201114818D0 (en) | 2011-10-12 |
DE112010000844B4 (de) | 2018-07-12 |
US8643372B2 (en) | 2014-02-04 |
CN102292649A (zh) | 2011-12-21 |
WO2010086762A1 (en) | 2010-08-05 |
GB2481149B (en) | 2013-11-06 |
DE112010000844T5 (de) | 2012-11-29 |
JP2012515600A (ja) | 2012-07-12 |
GB2481149A (en) | 2011-12-14 |
CN102292649B (zh) | 2015-06-24 |
US20110267151A1 (en) | 2011-11-03 |
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