AU2001251078A1 - Wireless detuning of a resonant circuit in an mr imaging system - Google Patents

Wireless detuning of a resonant circuit in an mr imaging system

Info

Publication number
AU2001251078A1
AU2001251078A1 AU2001251078A AU5107801A AU2001251078A1 AU 2001251078 A1 AU2001251078 A1 AU 2001251078A1 AU 2001251078 A AU2001251078 A AU 2001251078A AU 5107801 A AU5107801 A AU 5107801A AU 2001251078 A1 AU2001251078 A1 AU 2001251078A1
Authority
AU
Australia
Prior art keywords
detuning
wireless
imaging system
resonant circuit
resonant
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.)
Abandoned
Application number
AU2001251078A
Inventor
Jeffrey L. Duerk
Jonathan S. Lewin
Michael Wendt
Eddy Y. Wong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Case Western Reserve University
Original Assignee
Case Western Reserve University
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 Case Western Reserve University filed Critical Case Western Reserve University
Publication of AU2001251078A1 publication Critical patent/AU2001251078A1/en
Abandoned legal-status Critical Current

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
    • G01R33/3692—Electrical details, e.g. matching or coupling of the coil to the receiver involving signal transmission without using electrically conductive connections, e.g. wireless communication or optical communication of the MR signal or an auxiliary signal other than the MR signal
    • 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
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/065—Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe
    • 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
    • G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
AU2001251078A 2000-03-30 2001-03-30 Wireless detuning of a resonant circuit in an mr imaging system Abandoned AU2001251078A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US19312500P 2000-03-30 2000-03-30
US60193125 2000-03-30
PCT/US2001/010042 WO2001075466A1 (en) 2000-03-30 2001-03-30 Wireless detuning of a resonant circuit in an mr imaging system

Publications (1)

Publication Number Publication Date
AU2001251078A1 true AU2001251078A1 (en) 2001-10-15

Family

ID=22712357

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001251078A Abandoned AU2001251078A1 (en) 2000-03-30 2001-03-30 Wireless detuning of a resonant circuit in an mr imaging system

Country Status (2)

Country Link
AU (1) AU2001251078A1 (en)
WO (1) WO2001075466A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10151779A1 (en) * 2001-10-19 2003-05-08 Philips Corp Intellectual Pty Method for localizing an object in an MR apparatus, and catheter and MR apparatus for performing the method
US7725160B2 (en) * 2002-08-12 2010-05-25 Boston Scientific Scimed, Inc. Tunable MRI enhancing device
US7742799B2 (en) 2003-09-09 2010-06-22 Koninklijke Philips Electronics N.V. Catheter tip tracking for interventional procedures monitored by magnetic resonance imaging
US7538554B2 (en) 2003-12-08 2009-05-26 Koninlijke Philips Electronics N.V. Circuit arrangement for detuning a resonant circuit of an MR apparatus
JP2009519729A (en) * 2005-03-16 2009-05-21 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 Optical decoupling and tuning of magnetic resonance coils.
EP1877816A1 (en) * 2005-05-06 2008-01-16 The Regents of the University of Minnesota Wirelessly coupled magnetic resonance coil
GB0618087D0 (en) * 2006-09-14 2006-10-25 Imp Innovations Ltd Magnetic resonance systems
EP2270529A1 (en) * 2009-07-03 2011-01-05 Koninklijke Philips Electronics N.V. Detunable RF reception antenna device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318025A (en) * 1992-04-01 1994-06-07 General Electric Company Tracking system to monitor the position and orientation of a device using multiplexed magnetic resonance detection
US5545999A (en) * 1995-03-21 1996-08-13 General Electric Company Preamplifier circuit for magnetic resonance system
US5715822A (en) * 1995-09-28 1998-02-10 General Electric Company Magnetic resonance devices suitable for both tracking and imaging
DE19746735C2 (en) * 1997-10-13 2003-11-06 Simag Gmbh Systeme Und Instr F NMR imaging method for the display, position determination or functional control of a device inserted into an examination object and device for use in such a method
DE19755782A1 (en) * 1997-12-16 1999-06-17 Philips Patentverwaltung Magnetic resonance device

Also Published As

Publication number Publication date
WO2001075466A1 (en) 2001-10-11

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