WO2007034341A3 - Rf traps for radio frequency coils used in mri - Google Patents

Rf traps for radio frequency coils used in mri Download PDF

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Publication number
WO2007034341A3
WO2007034341A3 PCT/IB2006/052877 IB2006052877W WO2007034341A3 WO 2007034341 A3 WO2007034341 A3 WO 2007034341A3 IB 2006052877 W IB2006052877 W IB 2006052877W WO 2007034341 A3 WO2007034341 A3 WO 2007034341A3
Authority
WO
WIPO (PCT)
Prior art keywords
radio frequency
frequency circuit
trap
operative
magnetic resonance
Prior art date
Application number
PCT/IB2006/052877
Other languages
French (fr)
Other versions
WO2007034341A2 (en
Inventor
Robert Gauss
Yu Ping Wong
Original Assignee
Koninkl Philips Electronics Nv
Robert Gauss
Yu Ping Wong
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 Koninkl Philips Electronics Nv, Robert Gauss, Yu Ping Wong filed Critical Koninkl Philips Electronics Nv
Priority to EP06795710A priority Critical patent/EP1929321A2/en
Priority to JP2008530672A priority patent/JP2009508555A/en
Priority to US12/067,379 priority patent/US7622928B2/en
Publication of WO2007034341A2 publication Critical patent/WO2007034341A2/en
Publication of WO2007034341A3 publication Critical patent/WO2007034341A3/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
    • G01R33/3628—Tuning/matching of the transmit/receive coil
    • G01R33/3635—Multi-frequency operation
    • 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)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

A radio frequency coil includes an operative radio frequency circuit (100, 100') and a trap radio frequency circuit (110, 110'). The operative radio frequency circuit is tuned to a magnetic resonance frequency and is spatially configured to at least one of generate magnetic resonance in or receive magnetic resonance from a spatial region of interest. The trap radio frequency circuit is tuned to block a selected frequency and is disposed with the operative radio frequency circuit. The trap radio frequency circuit includes at least a generally linear transmission line (120) having a first end (122, 122') at which the operative radio frequency circuit and the trap radio frequency circuit are coupled together and a second end (124) at which the generally linear transmission line is terminated with a termination impedance (136).
PCT/IB2006/052877 2005-09-20 2006-08-21 Rf traps for radio frequency coils used in mri WO2007034341A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06795710A EP1929321A2 (en) 2005-09-20 2006-08-21 Rf traps for radio frequency coils used in mri
JP2008530672A JP2009508555A (en) 2005-09-20 2006-08-21 RF traps for radio frequency coils used in MRI
US12/067,379 US7622928B2 (en) 2005-09-20 2006-08-21 RF traps for radio frequency coils used in MRI

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71881605P 2005-09-20 2005-09-20
US60/718,816 2005-09-20

Publications (2)

Publication Number Publication Date
WO2007034341A2 WO2007034341A2 (en) 2007-03-29
WO2007034341A3 true WO2007034341A3 (en) 2007-07-05

Family

ID=37596258

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/052877 WO2007034341A2 (en) 2005-09-20 2006-08-21 Rf traps for radio frequency coils used in mri

Country Status (5)

Country Link
US (1) US7622928B2 (en)
EP (1) EP1929321A2 (en)
JP (1) JP2009508555A (en)
CN (1) CN101268379A (en)
WO (1) WO2007034341A2 (en)

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US9341689B2 (en) 2009-04-02 2016-05-17 Koninklijke Philips Electronics N.V. Devices and cabling for use in a multi-resonant magnetic resonance system
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GB0905770D0 (en) * 2009-04-03 2009-05-20 Siemens Ag Bias control
CN102803981B (en) 2009-06-19 2016-09-21 皇家飞利浦电子股份有限公司 Memristor device is used for MRI RF coil
GB0915657D0 (en) * 2009-09-08 2009-10-07 Siemens Ag Amplifier
US8981774B2 (en) * 2009-09-17 2015-03-17 Koninklijke Philips N.V. Multi-element transmit RF chain with local automatic tune and match device
JP5492015B2 (en) * 2010-02-03 2014-05-14 株式会社日立製作所 Low-frequency common leaky antenna, base station apparatus using the same, and short-range detection system
CA2793101C (en) 2010-02-16 2019-03-19 Duke University Systems, methods, compositions and devices for in vivo magnetic resonance imaging of lungs using perfluorinated gas mixtures
DE102010012393B4 (en) * 2010-03-23 2013-04-11 Siemens Aktiengesellschaft Magnetic resonance device with a coaxial line having at least one blocking circuit
EP2447732A1 (en) * 2010-10-26 2012-05-02 Koninklijke Philips Electronics N.V. RF antenna arrangement including a decoupling circuit especially for an MR imaging system
GB2490548B (en) * 2011-05-06 2016-08-17 Renishaw Plc RF coil assembly for magnetic resonance apparatus
US8890529B2 (en) * 2011-05-31 2014-11-18 General Electric Company System and apparatus for providing interconnections in a gradient coil assembly
DE102011079596B4 (en) * 2011-07-21 2015-01-29 Siemens Aktiengesellschaft Integrated standing wave barrier in a local coil
KR101453297B1 (en) * 2011-08-19 2014-10-22 삼성전자주식회사 Apparatus and method for creating multi-type magnetic resonance images simultaneously
US9404983B2 (en) * 2013-03-12 2016-08-02 Viewray, Incorporated Radio frequency transmit coil for magnetic resonance imaging system
US9160295B2 (en) * 2013-03-15 2015-10-13 Life Services, LLC Snap-on coaxial cable balun and method for trapping RF current on outside shield of coax after installation
US10185002B2 (en) 2015-06-04 2019-01-22 General Electric Company Systems and methods for MRI common mode traps
CN106468767B (en) * 2016-05-30 2018-09-28 北京理工大学 Balance drive formula magnetic resonance radio frequency coil based on microstrip line
CN110312942B (en) * 2016-12-22 2022-09-06 皇家飞利浦有限公司 RF coil device and RF shielding device for different MRI modes
CN108241133B (en) * 2016-12-27 2022-02-08 通用电气公司 System and method for common mode trap in MRI system
JP7458316B2 (en) 2017-09-28 2024-03-29 シーダーズ－サイナイ メディカル センター Magnetic resonance coil for simultaneous imaging and B0 shimming
CN112230172B (en) * 2020-09-21 2023-05-26 上海联影医疗科技股份有限公司 Notch device and magnetic resonance system

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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
US4792759A (en) * 1987-07-29 1988-12-20 Elscint Ltd. Multi-frequency surface probe
US5107217A (en) * 1989-03-29 1992-04-21 Siemens Aktiengesellschaft Radio frequency antenna for a nuclear magnetic resonance tomography apparatus
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US5998999A (en) * 1996-12-12 1999-12-07 Picker International, Inc. Volume RF coils with integrated high resolution focus coils for magnetic resonance imaging

Also Published As

Publication number Publication date
JP2009508555A (en) 2009-03-05
CN101268379A (en) 2008-09-17
US7622928B2 (en) 2009-11-24
US20080191699A1 (en) 2008-08-14
EP1929321A2 (en) 2008-06-11
WO2007034341A2 (en) 2007-03-29

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