WO2007022499A3 - Reducing susceptibility artifacts in mri using composite materials - Google Patents
Reducing susceptibility artifacts in mri using composite materials Download PDFInfo
- 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
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
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.
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 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)
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)
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)
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 |
-
2006
- 2006-08-18 WO PCT/US2006/032566 patent/WO2007022499A2/en active Application Filing
- 2006-08-18 EP EP06801986.8A patent/EP1968440A4/en not_active Withdrawn
Patent Citations (2)
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 |
Non-Patent Citations (1)
Title |
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See also references of EP1968440A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1968440A4 (en) | 2013-11-27 |
EP1968440A2 (en) | 2008-09-17 |
WO2007022499A2 (en) | 2007-02-22 |
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