WO2007081805A3 - System and method for high-resolution magnetic resonance imaging using inductively-over-coupled coils - Google Patents

System and method for high-resolution magnetic resonance imaging using inductively-over-coupled coils Download PDF

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Publication number
WO2007081805A3
WO2007081805A3 PCT/US2007/000281 US2007000281W WO2007081805A3 WO 2007081805 A3 WO2007081805 A3 WO 2007081805A3 US 2007000281 W US2007000281 W US 2007000281W WO 2007081805 A3 WO2007081805 A3 WO 2007081805A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic resonance
resonance imaging
inductively
over
resolution magnetic
Prior art date
Application number
PCT/US2007/000281
Other languages
French (fr)
Other versions
WO2007081805A2 (en
Inventor
Mehmet Bilgen
Original Assignee
Univ Kansas Medical Center
Mehmet Bilgen
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 Kansas Medical Center, Mehmet Bilgen filed Critical Univ Kansas Medical Center
Publication of WO2007081805A2 publication Critical patent/WO2007081805A2/en
Publication of WO2007081805A3 publication Critical patent/WO2007081805A3/en

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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
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface 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
    • G01R33/3628—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
    • G01R33/3692—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
    • 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

Abstract

The present invention is directed to a tunable electromagnetic device for use in magnetic resonance imaging comprising a primary element (20) electrically coupled to an electromagnetic field generator (32), and a secondary element (10) positioned proximate the primary element, such that the two are inductively coupled. The secondary element is non- tunable, and preferably provided with a coating (16) to allow the element to be implanted within tissue. The primary element comprises tuning and matching circuitry (34, 36, 38) to vary the resonance frequency between the two elements to provide an inductive over- coupling between the two to provide a high resolution magnetic resonance image. Also disclosed is an associated method of using the system.
PCT/US2007/000281 2006-01-06 2007-01-08 System and method for high-resolution magnetic resonance imaging using inductively-over-coupled coils WO2007081805A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75689606P 2006-01-06 2006-01-06
US60/756,896 2006-01-06

Publications (2)

Publication Number Publication Date
WO2007081805A2 WO2007081805A2 (en) 2007-07-19
WO2007081805A3 true WO2007081805A3 (en) 2008-06-05

Family

ID=38256925

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/000281 WO2007081805A2 (en) 2006-01-06 2007-01-08 System and method for high-resolution magnetic resonance imaging using inductively-over-coupled coils

Country Status (1)

Country Link
WO (1) WO2007081805A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102286940B1 (en) * 2014-11-25 2021-08-05 삼성전자주식회사 Surface coil for magnetic resonance imging system and magnetic resonance imging system having the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2028534A (en) * 1934-05-11 1936-01-21 Johnson Lab Inc Variable-selectivity radio receiver
US5041791A (en) * 1989-08-07 1991-08-20 Washington University Magnetic resonance RF probe with electromagnetically isolated transmitter and receiver coils
US5365172A (en) * 1992-08-07 1994-11-15 Brigham And Women's Hospital Methods and apparatus for MRI
US6248018B1 (en) * 1997-10-23 2001-06-19 Logitech, Inc. Electromagnetic pointing device using varying overlap of coils and conductive elements
US20030160622A1 (en) * 2001-12-18 2003-08-28 Duensing G. Randy Method and apparatus for noise tomography
US20040082851A1 (en) * 2002-10-29 2004-04-29 Mehmet Bilgen Tunable electromagnetic device and method of use
US6887339B1 (en) * 2000-09-20 2005-05-03 Applied Science And Technology, Inc. RF power supply with integrated matching network

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2028534A (en) * 1934-05-11 1936-01-21 Johnson Lab Inc Variable-selectivity radio receiver
US5041791A (en) * 1989-08-07 1991-08-20 Washington University Magnetic resonance RF probe with electromagnetically isolated transmitter and receiver coils
US5365172A (en) * 1992-08-07 1994-11-15 Brigham And Women's Hospital Methods and apparatus for MRI
US6248018B1 (en) * 1997-10-23 2001-06-19 Logitech, Inc. Electromagnetic pointing device using varying overlap of coils and conductive elements
US6887339B1 (en) * 2000-09-20 2005-05-03 Applied Science And Technology, Inc. RF power supply with integrated matching network
US20030160622A1 (en) * 2001-12-18 2003-08-28 Duensing G. Randy Method and apparatus for noise tomography
US20040082851A1 (en) * 2002-10-29 2004-04-29 Mehmet Bilgen Tunable electromagnetic device and method of use

Also Published As

Publication number Publication date
WO2007081805A2 (en) 2007-07-19

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