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DK2861136T3 - System og fremgangsmåde til magnetisk resonans-afbildning ved anvendelse af et roterende array af permanente magneter - Google Patents

System og fremgangsmåde til magnetisk resonans-afbildning ved anvendelse af et roterende array af permanente magneter Download PDF

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Publication number
DK2861136T3
DK2861136T3 DK12878991.4T DK12878991T DK2861136T3 DK 2861136 T3 DK2861136 T3 DK 2861136T3 DK 12878991 T DK12878991 T DK 12878991T DK 2861136 T3 DK2861136 T3 DK 2861136T3
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DK
Denmark
Prior art keywords
magnetic resonance
permanent magnets
resonance imaging
rotary array
array
Prior art date
Application number
DK12878991.4T
Other languages
English (en)
Inventor
Lawrence L Wald
Clarissa Zimmerman
Jason Stockmann
Original Assignee
Massachusetts Gen Hospital
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 Massachusetts Gen Hospital filed Critical Massachusetts Gen Hospital
Application granted granted Critical
Publication of DK2861136T3 publication Critical patent/DK2861136T3/da

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34092RF coils specially adapted for NMR spectrometers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/055Detecting, 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0033Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room
    • A61B5/004Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
    • A61B5/0042Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part for the brain
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/383Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/46NMR spectroscopy
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/3802Manufacture or installation of magnet assemblies; Additional hardware for transportation or installation of the magnet assembly or for providing mechanical support to components of the magnet assembly
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/445MR involving a non-standard magnetic field B0, e.g. of low magnitude as in the earth's magnetic field or in nanoTesla spectroscopy, comprising a polarizing magnetic field for pre-polarisation, B0 with a temporal variation of its magnitude or direction such as field cycling of B0 or rotation of the direction of B0, or spatially inhomogeneous B0 like in fringe-field MR or in stray-field imaging
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/4818MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/4824MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a non-Cartesian trajectory

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Neurology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DK12878991.4T 2012-06-15 2012-10-22 System og fremgangsmåde til magnetisk resonans-afbildning ved anvendelse af et roterende array af permanente magneter DK2861136T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261660278P 2012-06-15 2012-06-15
PCT/US2012/061341 WO2013187924A1 (en) 2012-06-15 2012-10-22 System and method for portable magnetic resonance imaging using a rotating array of permanent magnets

Publications (1)

Publication Number Publication Date
DK2861136T3 true DK2861136T3 (da) 2021-09-06

Family

ID=49758582

Family Applications (1)

Application Number Title Priority Date Filing Date
DK12878991.4T DK2861136T3 (da) 2012-06-15 2012-10-22 System og fremgangsmåde til magnetisk resonans-afbildning ved anvendelse af et roterende array af permanente magneter

Country Status (11)

Country Link
US (1) US10359481B2 (da)
EP (2) EP3933427A1 (da)
JP (2) JP6317341B2 (da)
KR (1) KR102020534B1 (da)
CN (1) CN104507386B (da)
DK (1) DK2861136T3 (da)
ES (1) ES2885525T3 (da)
HU (1) HUE055708T2 (da)
IN (1) IN2014KN02928A (da)
PT (1) PT2861136T (da)
WO (1) WO2013187924A1 (da)

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Also Published As

Publication number Publication date
WO2013187924A1 (en) 2013-12-19
KR102020534B1 (ko) 2019-09-10
JP2015519175A (ja) 2015-07-09
CN104507386A (zh) 2015-04-08
CN104507386B (zh) 2019-04-19
PT2861136T (pt) 2021-07-13
EP2861136B1 (en) 2021-06-09
EP2861136A4 (en) 2016-03-30
EP2861136A1 (en) 2015-04-22
JP6317341B2 (ja) 2018-04-25
JP2018038844A (ja) 2018-03-15
HUE055708T2 (hu) 2021-12-28
JP6522079B2 (ja) 2019-05-29
IN2014KN02928A (da) 2015-05-08
ES2885525T3 (es) 2021-12-14
US10359481B2 (en) 2019-07-23
KR20150023024A (ko) 2015-03-04
US20150177343A1 (en) 2015-06-25
EP3933427A1 (en) 2022-01-05

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