WO2005086817A3 - Active radio frequency coil for high field magnetic resonance imaging - Google Patents

Active radio frequency coil for high field magnetic resonance imaging Download PDF

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Publication number
WO2005086817A3
WO2005086817A3 PCT/US2005/007606 US2005007606W WO2005086817A3 WO 2005086817 A3 WO2005086817 A3 WO 2005086817A3 US 2005007606 W US2005007606 W US 2005007606W WO 2005086817 A3 WO2005086817 A3 WO 2005086817A3
Authority
WO
WIPO (PCT)
Prior art keywords
coil
radio frequency
resonance imaging
magnetic resonance
frequency coil
Prior art date
Application number
PCT/US2005/007606
Other languages
French (fr)
Other versions
WO2005086817A2 (en
Inventor
Ray Lee
Original Assignee
Univ New York
Ray Lee
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ New York, Ray Lee filed Critical Univ New York
Priority to US10/592,174 priority Critical patent/US7876101B2/en
Publication of WO2005086817A2 publication Critical patent/WO2005086817A2/en
Publication of WO2005086817A3 publication Critical patent/WO2005086817A3/en

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
    • 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
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation
    • 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
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels

Abstract

As the static magnetic field used in Magnetic Resonance Imaging ('MRI') instruments increases the resonance frequency also increases. Consequently, the signal lost due to the coil becomes an issue. To compensate for this loss, it is possible to use an active device, such as a diode, a transistor, etc., with the radio frequency coil, MRI arrangement and method according to exemplary embodiments of the present invention to generate negative resistance to cancel the coil loss resistance. In this manner, the efficiency of the RF coil at high frequency can be improved.
PCT/US2005/007606 2004-03-08 2005-03-07 Active radio frequency coil for high field magnetic resonance imaging WO2005086817A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/592,174 US7876101B2 (en) 2004-03-08 2005-03-07 Active radio frequency coil providing negative resistance for high field magnetic resonance imaging

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55114504P 2004-03-08 2004-03-08
US60/551,145 2004-03-08

Publications (2)

Publication Number Publication Date
WO2005086817A2 WO2005086817A2 (en) 2005-09-22
WO2005086817A3 true WO2005086817A3 (en) 2006-04-06

Family

ID=34976166

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/007606 WO2005086817A2 (en) 2004-03-08 2005-03-07 Active radio frequency coil for high field magnetic resonance imaging

Country Status (2)

Country Link
US (1) US7876101B2 (en)
WO (1) WO2005086817A2 (en)

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WO2005086817A2 (en) * 2004-03-08 2005-09-22 New York University Active radio frequency coil for high field magnetic resonance imaging
US7495944B2 (en) * 2005-03-30 2009-02-24 Ovonyx, Inc. Reading phase change memories
JP4739915B2 (en) * 2005-10-31 2011-08-03 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 RF coil assembly
JP5658656B2 (en) * 2008-04-09 2015-01-28 コーニンクレッカ フィリップス エヌ ヴェ Double-layer multi-element RF strip coil antenna for high-field MR with reduced SAR
JP5185041B2 (en) * 2008-09-25 2013-04-17 株式会社東芝 Stabilization circuit and semiconductor device provided with stabilization circuit
AU2011210870A1 (en) 2010-01-29 2012-08-16 Avery Dennison Corporation Smart sign box using electronic interactions
US10977965B2 (en) 2010-01-29 2021-04-13 Avery Dennison Retail Information Services, Llc Smart sign box using electronic interactions
US9239942B2 (en) * 2011-07-22 2016-01-19 Avery Dennison Corporation Apparatus, system and method for extending the field area of a device equipped with a high-frequency reader
WO2013033522A1 (en) 2011-09-01 2013-03-07 Avery Dennison Corporation Apparatus, system and method for consumer tracking
US8630908B2 (en) 2011-11-02 2014-01-14 Avery Dennison Corporation Distributed point of sale, electronic article surveillance, and product information system, apparatus and method
EP2771845B1 (en) 2012-09-10 2019-01-02 Avery Dennison Corporation Method for preventing unauthorized diversion of nfc tags
CN104704508B (en) 2012-10-18 2017-12-15 艾利丹尼森公司 Method, system and equipment for NFC safety
EP2795950B1 (en) 2012-11-19 2018-09-05 Avery Dennison Corporation Nfc security system and method for disabling unauthorized tags
US10393831B2 (en) * 2014-05-07 2019-08-27 The United States Of America, As Represented By The Secretary, Department Of Health And Human Services Negative resistance preamplifier for inductively coupled local MRI coils
DE102019110358A1 (en) * 2019-04-18 2020-10-22 Forschungszentrum Jülich GmbH RASER and / or NMR spectroscopy device, use of such a device, system with two such devices and method for operating such a device and such a system

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US4613818A (en) * 1983-06-20 1986-09-23 The Medical College Of Wisconsin, Inc. Nuclear magnetic resonance blood flowmeter
US4782298A (en) * 1987-09-01 1988-11-01 The Regents Of The University Of California MRI QD RF coil having diode switched detuning circuit producing reduced artifact
US4793356A (en) * 1985-08-14 1988-12-27 Picker International, Inc. Surface coil system for magnetic resonance imaging
US5461314A (en) * 1993-10-21 1995-10-24 The Regents Of The University Of California MRI front end apparatus and method of operation
US5712490A (en) * 1996-11-21 1998-01-27 Itt Industries, Inc. Ramp cathode structures for vacuum emission
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

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US3443208A (en) * 1966-04-08 1969-05-06 Webb James E Optically pumped resonance magnetometer for determining vectoral components in a spatial coordinate system
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WO2005086817A2 (en) * 2004-03-08 2005-09-22 New York University Active radio frequency coil for high field magnetic resonance imaging
WO2007098011A2 (en) * 2006-02-17 2007-08-30 Regents Of The University Of Minnesota High field magnetic resonance
WO2009046350A1 (en) * 2007-10-05 2009-04-09 The Regents Of The University Of California Detection of magnetic resonance signals using a magnetoresistive sensor
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Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613818A (en) * 1983-06-20 1986-09-23 The Medical College Of Wisconsin, Inc. Nuclear magnetic resonance blood flowmeter
US4793356A (en) * 1985-08-14 1988-12-27 Picker International, Inc. Surface coil system for magnetic resonance imaging
US4782298A (en) * 1987-09-01 1988-11-01 The Regents Of The University Of California MRI QD RF coil having diode switched detuning circuit producing reduced artifact
US5461314A (en) * 1993-10-21 1995-10-24 The Regents Of The University Of California MRI front end apparatus and method of operation
US5565779A (en) * 1993-10-21 1996-10-15 The Regents Of The University Of California MRI front end apparatus and method of operation
US5712490A (en) * 1996-11-21 1998-01-27 Itt Industries, Inc. Ramp cathode structures for vacuum emission
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

Also Published As

Publication number Publication date
US7876101B2 (en) 2011-01-25
US20070146104A1 (en) 2007-06-28
WO2005086817A2 (en) 2005-09-22

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