Patents by Inventor Florian Wiesinger

Florian Wiesinger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method for correcting flow velocity measurements in phase contrast imaging using magnetic field monitoring
    Patent number: 7847545
    Abstract: A system and method of phase contrast imaging includes a system control programmed to acquire a first set of data and a second set of data via the RF coil assembly during a scan and acquire a third set of data and a fourth set of data via the plurality of magnetic field monitoring devices during the scan. A first single data set from the first and third sets of data is formed, and a second single data set from the second and fourth sets of data is formed. The system control is also programmed to reconstruct a phase contrast image based on the first and second single data sets to correct for spatially-dependent background phase variations.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: December 7, 2010
    Assignee: General Electric Company
    Inventors: Florian Wiesinger, Thomas K. F. Foo, Mika Vogel, Dirk Lange
  • System and apparatus for reducing high field shading in MR imaging
    Patent number: 7746074
    Abstract: A system for receiving MR data that includes an RF coil array for a magnetic resonance (MR) imaging apparatus. The RF coil array includes a plurality of non-concentric receiver coils arrayed along a first direction. A receiver coil at a first end of the RF coil array has a perimeter width greater than a perimeter width of a receiver coil at a second end of the RF coil array that is opposite from the first end along the first direction.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: June 29, 2010
    Assignee: General Electric Company
    Inventors: Selaka Bandara Bulumulla, Christopher Judson Hardy, Florian Wiesinger
  • SYSTEM AND APPARATUS FOR REDUCING HIGH FIELD SHADING IN MR IMAGING
    Publication number: 20090315562
    Abstract: A system for receiving MR data that includes an RF coil array for a magnetic resonance (MR) imaging apparatus. The RF coil array includes a plurality of non-concentric receiver coils arrayed along a first direction. A receiver coil at a first end of the RF coil array has a perimeter width greater than a perimeter width of a receiver coil at a second end of the RF coil array that is opposite from the first end along the first direction.
    Type: Application
    Filed: June 24, 2008
    Publication date: December 24, 2009
    Inventors: Selaka Bandara Bulumulla, Christopher Judson Hardy, Florian Wiesinger
  • SYSTEM AND METHOD FOR CORRECTING FLOW VELOCITY MEASUREMENTS IN PHASE CONTRAST IMAGING USING MAGNETIC FIELD MONITORING
    Publication number: 20090256568
    Abstract: A system and method of phase contrast imaging includes a system control programmed to acquire a first set of data and a second set of data via the RF coil assembly during a scan and acquire a third set of data and a fourth set of data via the plurality of magnetic field monitoring devices during the scan. A first single data set from the first and third sets of data is formed, and a second single data set from the second and fourth sets of data is formed. The system control is also programmed to reconstruct a phase contrast image based on the first and second single data sets to correct for spatially-dependent background phase variations.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 15, 2009
    Inventors: Florian Wiesinger, Thomas K.F. Foo, Mika Vogel, Dirk Lange
  • Inherent limitation of the reduction factor in parallel imaging as a function of field strength
    Patent number: 7061238
    Abstract: A magnetic resonance imaging system comprises means for generating a main magnetic field with a main magnetic field strength an a plurality of magnetic resonance signal receiving positions, provided by one or more receiver antennae. The receiver antennae or coils have a spatial sensitivity profile for acquiring magnetic resonance signals at a predetermined degree of undersampling. Further means for reconstructing a magnetic resonance image from the set of undersampled magnetic resonance signals and the spatial sensitivity profiles are provided. In addition, means are provided for determining the degree of undersampling (R) in dependency of the given main field strength (B0) and the selected field-of-view (FOV).
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: June 13, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Florian Wiesinger, Klaas Paul Pruessmann, Peter Boesiger
  • Inherent limitation of the reduction factor in parallel imaging as a function of field strength
    Publication number: 20050179433
    Abstract: A magnetic resonance imaging system comprises means for generating a main magnetic field with a main magnetic field strength an a plurality of magnetic resonance signal receiving positions, provided by one or more receiver antennae. The receiver antennae or coils have a spatial sensitivity profile for acquiring magnetic resonance signals at a predetermined degree of undersampling. Further means for reconstructing a magnetic resonance image from the set of undersampled magnetic resonance signals and the spatial sensitivity profiles are provided. In addition, means are provided for determining the degree of undersampling (R) in dependency of the given main field strength (B0) and the selected field-of-view (FOV).
    Type: Application
    Filed: May 12, 2003
    Publication date: August 18, 2005
    Inventors: Florian Wiesinger, Klaas Pruessmann, Peter Boesiger