WO2008114195A3 - Rf receiver for an mri system comprising a susceptibility matched padding device - Google Patents

Rf receiver for an mri system comprising a susceptibility matched padding device Download PDF

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Publication number
WO2008114195A3
WO2008114195A3 PCT/IB2008/050987 IB2008050987W WO2008114195A3 WO 2008114195 A3 WO2008114195 A3 WO 2008114195A3 IB 2008050987 W IB2008050987 W IB 2008050987W WO 2008114195 A3 WO2008114195 A3 WO 2008114195A3
Authority
WO
WIPO (PCT)
Prior art keywords
receiver
padding device
mri system
mri
present
Prior art date
Application number
PCT/IB2008/050987
Other languages
French (fr)
Other versions
WO2008114195A2 (en
Inventor
Miha Fuderer
Original Assignee
Koninkl Philips Electronics Nv
Miha Fuderer
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 Koninkl Philips Electronics Nv, Miha Fuderer filed Critical Koninkl Philips Electronics Nv
Publication of WO2008114195A2 publication Critical patent/WO2008114195A2/en
Publication of WO2008114195A3 publication Critical patent/WO2008114195A3/en

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
    • G01R33/34—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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • 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
    • 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
    • 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
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0

Abstract

The present invention relates generally to the MRI technique. More particularly, the present invention relates to an RF receiver (1) for an MRI system (2). Furthermore the present invention relates to a method of examining an irregular shaped object (6) by means of an MRI system (1). In order to provide a simple and reliable technique for obtaining better image quality in MRI of irregular shaped objects (6), an RF receiver (1) is suggested, the receiver (1) comprising a padding device (3) adapted to be placed on said object (6) in a way that a more regular outer object shape (13) is obtained, said padding device (3) comprising material having a magnetic susceptibility similar to the magnetic susceptibility of said object (6), the receiver (1) further comprising a number of receiver elements (5) mounted in or on said padding device (3).
PCT/IB2008/050987 2007-03-20 2008-03-17 Rf receiver for an mri system comprising a susceptibility matched padding device WO2008114195A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07104451.5 2007-03-20
EP07104451 2007-03-20

Publications (2)

Publication Number Publication Date
WO2008114195A2 WO2008114195A2 (en) 2008-09-25
WO2008114195A3 true WO2008114195A3 (en) 2008-11-20

Family

ID=39708394

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/050987 WO2008114195A2 (en) 2007-03-20 2008-03-17 Rf receiver for an mri system comprising a susceptibility matched padding device

Country Status (1)

Country Link
WO (1) WO2008114195A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006569A1 (en) * 2011-03-31 2012-10-04 Siemens Aktiengesellschaft Local coil, method for generating magnetic resonance recordings of an examination subject and use of the local coil
DE102012204527B4 (en) * 2012-03-21 2015-05-13 Siemens Aktiengesellschaft Multi-ply cushion for optimal adaptation to anatomy and susceptibility adjustment
DE102014200342A1 (en) 2014-01-10 2015-07-16 Siemens Aktiengesellschaft Magnetic resonance tomography system for generating a mammographic image
KR101747240B1 (en) 2015-03-12 2017-06-15 재단법인 아산사회복지재단 Filter and Method for compensation of gap of magnetic resonance susceptibility
WO2016143943A1 (en) * 2015-03-12 2016-09-15 재단법인 아산사회복지재단 Magnetic resonance susceptibility difference compensation filter and method for compensating for magnetic susceptibility difference using same
JP6609751B2 (en) * 2015-09-09 2019-11-27 神戸バイオメディクス株式会社 Pad for correcting local magnetic field inhomogeneity
US20180356479A1 (en) * 2015-11-12 2018-12-13 Rigshospitalet Device for Reducing Magnetic Susceptibility Artifact

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791372A (en) * 1987-08-17 1988-12-13 Resonex, Inc. Conformable head or body coil assembly for magnetic imaging apparatus
WO1993003391A1 (en) * 1991-08-06 1993-02-18 Medrad, Inc. Anatomically conformal quadrature mri surface coil
WO1994004946A1 (en) * 1992-08-11 1994-03-03 Alliance Pharmaceutical Corp. Method of improving fat saturation during mri
US5379768A (en) * 1991-11-15 1995-01-10 Picker Nordstar, Inc. Anatomic support for an MRI-apparatus
US5400787A (en) * 1993-11-24 1995-03-28 Magna-Lab, Inc. Inflatable magnetic resonance imaging sensing coil assembly positioning and retaining device and method for using the same
DE19509020A1 (en) * 1995-03-13 1996-09-19 Siemens Ag Local antenna for magnetic resonance diagnosis
US5906205A (en) * 1998-07-28 1999-05-25 Hiebert; Eugene Lloyd Surgical positioning device
US20020077539A1 (en) * 2000-12-15 2002-06-20 Schmit Berndt P. Restraining apparatus and method for use in imaging procedures
WO2003062847A1 (en) * 2002-01-25 2003-07-31 Medical Research Council Optimization of static magnetic field homogeneity using passive shims
US20040186375A1 (en) * 2003-03-21 2004-09-23 Vavrek Robert M. Rf coil embedded with homogeneity enhancing material
US20050134263A1 (en) * 2003-12-17 2005-06-23 Ge Medical Systems Global Technology Company, Llc Method and apparatus for enhanced fat saturation during mri

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791372A (en) * 1987-08-17 1988-12-13 Resonex, Inc. Conformable head or body coil assembly for magnetic imaging apparatus
WO1993003391A1 (en) * 1991-08-06 1993-02-18 Medrad, Inc. Anatomically conformal quadrature mri surface coil
US5379768A (en) * 1991-11-15 1995-01-10 Picker Nordstar, Inc. Anatomic support for an MRI-apparatus
WO1994004946A1 (en) * 1992-08-11 1994-03-03 Alliance Pharmaceutical Corp. Method of improving fat saturation during mri
US5400787A (en) * 1993-11-24 1995-03-28 Magna-Lab, Inc. Inflatable magnetic resonance imaging sensing coil assembly positioning and retaining device and method for using the same
DE19509020A1 (en) * 1995-03-13 1996-09-19 Siemens Ag Local antenna for magnetic resonance diagnosis
US5906205A (en) * 1998-07-28 1999-05-25 Hiebert; Eugene Lloyd Surgical positioning device
US20020077539A1 (en) * 2000-12-15 2002-06-20 Schmit Berndt P. Restraining apparatus and method for use in imaging procedures
WO2003062847A1 (en) * 2002-01-25 2003-07-31 Medical Research Council Optimization of static magnetic field homogeneity using passive shims
US20040186375A1 (en) * 2003-03-21 2004-09-23 Vavrek Robert M. Rf coil embedded with homogeneity enhancing material
US20050134263A1 (en) * 2003-12-17 2005-06-23 Ge Medical Systems Global Technology Company, Llc Method and apparatus for enhanced fat saturation during mri

Also Published As

Publication number Publication date
WO2008114195A2 (en) 2008-09-25

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