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WO2007022499A3 - Reducing susceptibility artifacts in mri using composite materials - Google Patents

Reducing susceptibility artifacts in mri using composite materials Download PDF

Info

Publication number
WO2007022499A3
WO2007022499A3 PCT/US2006/032566 US2006032566W WO2007022499A3 WO 2007022499 A3 WO2007022499 A3 WO 2007022499A3 US 2006032566 W US2006032566 W US 2006032566W WO 2007022499 A3 WO2007022499 A3 WO 2007022499A3
Authority
WO
WIPO (PCT)
Prior art keywords
composite
mri
susceptibility
composite materials
susceptibility 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.)
Ceased
Application number
PCT/US2006/032566
Other languages
French (fr)
Other versions
WO2007022499A2 (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
Priority to EP06801986.8A priority Critical patent/EP1968440A4/en
Publication of WO2007022499A2 publication Critical patent/WO2007022499A2/en
Publication of WO2007022499A3 publication Critical patent/WO2007022499A3/en
Anticipated expiration legal-status Critical
Ceased 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Signal Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A susceptibility-matching composite material (200) composed of a highly diamagnetic material and a filler material reduces susceptibility artifacts in MRI. The composite, for example, may be formed by embedding highly diamagnetic particles (e.g., graphite powder) in a lightweight filler material (e.g., stryofoam or expanded polystyrene foam or EVA foam) such that the net susceptibility of the composite (200) matches human tissue (206) or other test substance to be imaged. The filler is preferably a non-conductive, low-density material that is either deformable or formed as a deformable collection of small beads packaged in a container so that the composite (200) conforms to the surface of a body (206) pressed against it.
PCT/US2006/032566 2005-08-18 2006-08-18 Reducing susceptibility artifacts in mri using composite materials Ceased WO2007022499A2 (en)

Priority Applications (1)

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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70995105P 2005-08-18 2005-08-18
US60/709,951 2005-08-18

Publications (2)

Publication Number Publication Date
WO2007022499A2 WO2007022499A2 (en) 2007-02-22
WO2007022499A3 true WO2007022499A3 (en) 2007-06-14

Family

ID=37758485

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/032566 Ceased WO2007022499A2 (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
EP3374781A1 (en) * 2015-11-12 2018-09-19 Rigshospitalet RH Device for reducing magnetic susceptibility artifact
WO2021055889A1 (en) * 2019-09-20 2021-03-25 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
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339033A (en) * 1992-08-11 1994-08-16 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

Patent Citations (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

Also Published As

Publication number Publication date
EP1968440A2 (en) 2008-09-17
WO2007022499A2 (en) 2007-02-22
EP1968440A4 (en) 2013-11-27

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