WO2006107344A3 - Probes and interfaces for obtaining images an spectra of intracavity structures using high-field magnetic resonance systems - Google Patents

Probes and interfaces for obtaining images an spectra of intracavity structures using high-field magnetic resonance systems Download PDF

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Publication number
WO2006107344A3
WO2006107344A3 PCT/US2005/041912 US2005041912W WO2006107344A3 WO 2006107344 A3 WO2006107344 A3 WO 2006107344A3 US 2005041912 W US2005041912 W US 2005041912W WO 2006107344 A3 WO2006107344 A3 WO 2006107344A3
Authority
WO
WIPO (PCT)
Prior art keywords
coil loop
spectra
probes
interfaces
magnetic resonance
Prior art date
Application number
PCT/US2005/041912
Other languages
French (fr)
Other versions
WO2006107344A2 (en
Inventor
George J Misic
Original Assignee
Medrad Inc
George J Misic
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 Medrad Inc, George J Misic filed Critical Medrad Inc
Priority to JP2007541497A priority Critical patent/JP4848377B2/en
Priority to EP05856978.1A priority patent/EP1811898B1/en
Priority to US11/719,253 priority patent/US7885704B2/en
Publication of WO2006107344A2 publication Critical patent/WO2006107344A2/en
Publication of WO2006107344A3 publication Critical patent/WO2006107344A3/en
Priority to US13/018,849 priority patent/US8989841B2/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852—Catheters
    • A61B5/6856—Catheters with a distal loop
    • 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
    • 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
    • G01R33/34092—RF coils specially adapted for NMR spectrometers
    • 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
    • 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
    • G01R33/34084—Constructional details, e.g. resonators, specially adapted to MR implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts
    • 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
    • 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

Abstract

An intracavity probe for use with an MR system allows images or spectra of a region of interest within a cavity of a patient to be obtained. The probe includes a shaft, a balloon at one end thereof, and a coil loop within the balloon. The coil loop preferably includes two drive capacitors and a tuning capacitor, all of which in series. A junction node between the drive capacitors serves as a ground for electrically balancing the coil loop. Diametrically opposite the junction node, the tuning capacitor enables the coil loop to resonate at the operating frequency of the MR system. Across each drive capacitor is connected an output cable having an electrical length of SL + n(λ/4). The output cables terminate in a plug that is used to connect the coil loop to an interface device for the intracavity probe.
PCT/US2005/041912 2002-05-16 2005-11-15 Probes and interfaces for obtaining images an spectra of intracavity structures using high-field magnetic resonance systems WO2006107344A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2007541497A JP4848377B2 (en) 2004-11-15 2005-11-15 Intracavity probe and its interface used to obtain images and spectra of intraluminal structures using a high-region magnetic resonance system
EP05856978.1A EP1811898B1 (en) 2004-11-15 2005-11-15 Intracavity probes and interfaces therefor for use in obtaining images and spectra of intracavity structures using high field magnetic resonance systems
US11/719,253 US7885704B2 (en) 2004-11-15 2005-11-15 Intracavity probes and interfaces therefor for use in obtaining images and spectra of intracavity structures using high field magnetic resonance systems
US13/018,849 US8989841B2 (en) 2002-05-16 2011-02-01 Interface devices for use with intracavity probes for high field strength magnetic resonance systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62816604P 2004-11-15 2004-11-15
US60/628,166 2004-11-15

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/007774 Continuation-In-Part WO2003098236A2 (en) 2002-05-16 2003-03-13 System and method of obtaining images and spectra of intracavity structures using 3.0 tesla magnetic resonance systems

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US11/719,253 A-371-Of-International US7885704B2 (en) 2004-11-15 2005-11-15 Intracavity probes and interfaces therefor for use in obtaining images and spectra of intracavity structures using high field magnetic resonance systems
US13/018,849 Division US8989841B2 (en) 2002-05-16 2011-02-01 Interface devices for use with intracavity probes for high field strength magnetic resonance systems

Publications (2)

Publication Number Publication Date
WO2006107344A2 WO2006107344A2 (en) 2006-10-12
WO2006107344A3 true WO2006107344A3 (en) 2007-01-25

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Family Applications (1)

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PCT/US2005/041912 WO2006107344A2 (en) 2002-05-16 2005-11-15 Probes and interfaces for obtaining images an spectra of intracavity structures using high-field magnetic resonance systems

Country Status (5)

Country Link
US (1) US7885704B2 (en)
EP (2) EP1811898B1 (en)
JP (2) JP4848377B2 (en)
CN (2) CN101642371B (en)
WO (1) WO2006107344A2 (en)

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WO2003098236A2 (en) * 2002-05-16 2003-11-27 Medrad, Inc. System and method of obtaining images and spectra of intracavity structures using 3.0 tesla magnetic resonance systems
CN101427150B (en) * 2006-04-24 2012-09-05 皇家飞利浦电子股份有限公司 Decoupling system and method of a multi-element RF coil
JP5208964B2 (en) * 2007-01-30 2013-06-12 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 RF signal transmission line without matching network
EP2347288A4 (en) * 2008-11-12 2013-11-06 Medrad Inc Quadrature endorectal coils and interface devices therefor
WO2010068299A1 (en) * 2008-12-12 2010-06-17 Yale University Parallel magnetic resonance imaging using nonlinear gradient encoding
US8610435B2 (en) * 2009-11-24 2013-12-17 Medrad, Inc. Focus coil array and interface devices therefor
KR20130045889A (en) 2010-07-01 2013-05-06 메드라드, 인크. Multi-channel endorectal coils and interface devices therefor
JP2012239723A (en) * 2011-05-20 2012-12-10 Toshiba Corp Magnetic resonance imaging apparatus
US9404983B2 (en) * 2013-03-12 2016-08-02 Viewray, Incorporated Radio frequency transmit coil for magnetic resonance imaging system
EP2989478B1 (en) * 2013-04-23 2023-02-15 Koninklijke Philips N.V. Single coaxial interface for magnetic resonance (mr) coils
DE102016208847C5 (en) * 2016-05-23 2020-03-26 Siemens Healthcare Gmbh Shielded connection cable for magnetic resonance tomographs
EP3252490B1 (en) * 2016-06-03 2020-09-16 Siemens Healthcare GmbH Device and method for transporting radiofrequency-signals through a shielded, balanced line
US10386430B2 (en) * 2016-09-21 2019-08-20 Quality Electrodynamics, Llc Single layer magnetic resonance imaging transmit/receive radio frequency coil
DE102017214180B4 (en) 2017-08-15 2019-10-17 Siemens Healthcare Gmbh Continuously digitally adjustable phase actuator
EP3632335A1 (en) * 2018-10-05 2020-04-08 Koninklijke Philips N.V. Reducing sensor interference in a medical device
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US11555875B2 (en) 2021-03-24 2023-01-17 Coilone, LLC RF receive coil circuit for MRI systems
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Also Published As

Publication number Publication date
EP2446815B1 (en) 2016-04-20
WO2006107344A2 (en) 2006-10-12
JP4848377B2 (en) 2011-12-28
EP1811898B1 (en) 2018-03-14
EP1811898A4 (en) 2009-11-11
US20090076378A1 (en) 2009-03-19
JP2012030079A (en) 2012-02-16
JP2008520286A (en) 2008-06-19
CN101642371B (en) 2013-01-30
CN100536767C (en) 2009-09-09
US7885704B2 (en) 2011-02-08
CN101111188A (en) 2008-01-23
EP1811898A2 (en) 2007-08-01
EP2446815A1 (en) 2012-05-02
JP5175377B2 (en) 2013-04-03
CN101642371A (en) 2010-02-10

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