EP1968440A4 - Reducing susceptibility artifacts in mri using composite materials - Google Patents

Reducing susceptibility artifacts in mri using composite materials

Info

Publication number
EP1968440A4
EP1968440A4 EP06801986.8A EP06801986A EP1968440A4 EP 1968440 A4 EP1968440 A4 EP 1968440A4 EP 06801986 A EP06801986 A EP 06801986A EP 1968440 A4 EP1968440 A4 EP 1968440A4
Authority
EP
European Patent Office
Prior art keywords
mri
composite materials
reducing susceptibility
susceptibility artifacts
artifacts
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.)
Withdrawn
Application number
EP06801986.8A
Other languages
German (de)
French (fr)
Other versions
EP1968440A2 (en
Inventor
Steven M Conolly
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1968440A2 publication Critical patent/EP1968440A2/en
Publication of EP1968440A4 publication Critical patent/EP1968440A4/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56536—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to magnetic susceptibility variations
EP06801986.8A 2005-08-18 2006-08-18 Reducing susceptibility artifacts in mri using composite materials Withdrawn EP1968440A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70995105P 2005-08-18 2005-08-18
PCT/US2006/032566 WO2007022499A2 (en) 2005-08-18 2006-08-18 Reducing susceptibility artifacts in mri using composite materials

Publications (2)

Publication Number Publication Date
EP1968440A2 EP1968440A2 (en) 2008-09-17
EP1968440A4 true EP1968440A4 (en) 2013-11-27

Family

ID=37758485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06801986.8A Withdrawn EP1968440A4 (en) 2005-08-18 2006-08-18 Reducing susceptibility artifacts in mri using composite materials

Country Status (2)

Country Link
EP (1) EP1968440A4 (en)
WO (1) WO2007022499A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8320647B2 (en) 2007-11-20 2012-11-27 Olea Medical Method and system for processing multiple series of biological images obtained from a patient
US20120133363A1 (en) * 2009-08-07 2012-05-31 University Of Florida Research Foundation, Inc. Magnetic resonance compatible and susceptibility-matched apparatus and method for mr imaging & spectroscopy
DE102012204570B4 (en) 2012-03-22 2015-07-16 Siemens Aktiengesellschaft Material for use in a magnetic resonance system, method for producing the material and magnetic resonance system
WO2017080562A1 (en) * 2015-11-12 2017-05-18 Rigshospitalet Device for reducing magnetic susceptibility artifact
US20220338750A1 (en) * 2019-09-20 2022-10-27 University Of Virginia Patent Foundation Devices, systems, and methods for magnetic resonance imaging (mri)-guided procedures
CN117554873A (en) * 2023-11-13 2024-02-13 中山大学附属第一医院 Passive shimming filling device and shimming filling method for magnetic resonance imaging equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994004946A1 (en) * 1992-08-11 1994-03-03 Alliance Pharmaceutical Corp. Method of improving fat saturation during mri
DE19532569A1 (en) * 1995-09-04 1997-03-06 Thull Roger Material for implants, instruments or the like for use in magnetic resonance imaging

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396136A (en) * 1992-10-28 1995-03-07 Sri International Magnetic field levitation
US6673258B2 (en) * 2001-10-11 2004-01-06 Tmp Technologies, Inc. Magnetically responsive foam and manufacturing process therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994004946A1 (en) * 1992-08-11 1994-03-03 Alliance Pharmaceutical Corp. Method of improving fat saturation during mri
DE19532569A1 (en) * 1995-09-04 1997-03-06 Thull Roger Material for implants, instruments or the like for use in magnetic resonance imaging

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
LEE G C ET AL: "Pyrolytic graphite foam: a passive magnetic susceptibility matching material", JOURNAL OF MAGNETIC RESONANCE IMAGING JOHN WILEY & SONS LTD. UK, vol. 32, no. 3, September 2010 (2010-09-01), pages 684 - 691, XP002714936, ISSN: 1053-1807 *
SCHENCK J F: "THE ROLE OF MAGNETIC SUSCEPTIBILITY IN MAGNETIC RESONANCE IMAGING: MRI MAGNETIC COMPATIBILITY OF THE FIRST AND SECOND KINDS", MEDICAL PHYSICS, AIP, MELVILLE, NY, US, vol. 23, no. 6, 1 June 1996 (1996-06-01), pages 815 - 850, XP000597979, ISSN: 0094-2405, ISBN: 978-1-930524-56-9, DOI: 10.1118/1.597854 *
WILSON J.L. ET AL.: "A Bit of a Mouth Full: Susceptibility Artifact Reduction Using Diamagnetic Passive Shims", INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, TENTH MEETING PROCEEDINGS, 18 May 2002 (2002-05-18), Hawaii, USA, XP040584938 *

Also Published As

Publication number Publication date
WO2007022499A3 (en) 2007-06-14
EP1968440A2 (en) 2008-09-17
WO2007022499A2 (en) 2007-02-22

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 20080729

AK Designated contracting states

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Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20131030

RIC1 Information provided on ipc code assigned before grant

Ipc: G01R 33/28 20060101ALI20131021BHEP

Ipc: A61B 5/055 20060101AFI20131021BHEP

Ipc: G01R 33/565 20060101ALI20131021BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140301