Patents by Inventor Heiko Rohdjess

Heiko Rohdjess 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).

  • Patent number: 11816815
    Abstract: A computer-implemented method for provision of a correction algorithm for an x-ray image that was recorded with an x-ray source emitting an x-ray radiation field, a filter facility spatially modulating an x-ray radiation dose, and an x-ray detector is provided. The correction algorithm includes a trained first processing function that, from first input data that includes at least one first physical parameter describing the x-ray radiation field and/or the measurement and at least one second physical parameter describing the spatial modulation of the filter facility, determines first output data. The first output data includes a mask for brightness compensation with regard to the spatial modulation of the filter facility in the x-ray image. The method includes providing first training data, providing an autoencoder for masks, and training of the autoencoder using the first training data. The method also includes determining an assignment rule, and providing the trained first processing function.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: November 14, 2023
    Assignee: Siemens Healthcare GmbH
    Inventors: Sai Gokul Hariharan, Heiko Rohdjeß
  • Publication number: 20230255563
    Abstract: The invention relates to an insertable patient table for a Magnetic Resonance Imaging scanner, wherein the patient table has a length of up to ± 20 % of the length of the bore of the main magnet of the scanner and is adapted for pediatric and/or small patients, and wherein the patient table is adapted to be inserted into the bore of the main magnet without having a stand standing on the floor of an examination room. The invention further relates to a Magnetic Resonance Imaging scanner comprising an insertable patient table and a method for positioning a small and/or pediatric patient within the bore of a main magnet of a Magnetic Resonance Imaging scanner.
    Type: Application
    Filed: February 16, 2022
    Publication date: August 17, 2023
    Applicants: Siemens Healthcare GmbH, Research Institute at Nationwide Children's Hospital
    Inventors: Arne Hengerer, Heiko Rohdjess, Aimee K. Armstrong
  • Publication number: 20220405897
    Abstract: A computer-implemented method for provision of a correction algorithm for an x-ray image that was recorded with an x-ray source emitting an x-ray radiation field, a filter facility spatially modulating an x-ray radiation dose, and an x-ray detector is provided. The correction algorithm includes a trained first processing function that, from first input data that includes at least one first physical parameter describing the x-ray radiation field and/or the measurement and at least one second physical parameter describing the spatial modulation of the filter facility, determines first output data. The first output data includes a mask for brightness compensation with regard to the spatial modulation of the filter facility in the x-ray image. The method includes providing first training data, providing an autoencoder for masks, and training of the autoencoder using the first training data. The method also includes determining an assignment rule, and providing the trained first processing function.
    Type: Application
    Filed: June 21, 2022
    Publication date: December 22, 2022
    Inventors: Sai Gokul Hariharan, Heiko Rohdjeß
  • Patent number: 11105874
    Abstract: A magnetic resonance unit includes a shim coil apparatus and a gradient coil apparatus. The shim coil apparatus is configured to compensate for basic magnetic field inhomogeneities of the first order in an examination region of the magnetic resonance unit. The shim coil apparatus includes at least one shim coil element. The gradient coil apparatus is arranged in a gradient coil layer. In addition to the gradient coil apparatus, at least one part of the at least one shim coil element is arranged in the gradient coil layer.
    Type: Grant
    Filed: May 16, 2020
    Date of Patent: August 31, 2021
    Assignee: Siemens Healthcare GmbH
    Inventors: Brendan Whelan, Heiko Rohdjeß, Martino Leghissa
  • Publication number: 20200363483
    Abstract: A magnetic resonance unit includes a shim coil apparatus and a gradient coil apparatus. The shim coil apparatus is configured to compensate for basic magnetic field inhomogeneities of the first order in an examination region of the magnetic resonance unit. The shim coil apparatus includes at least one shim coil element. The gradient coil apparatus is arranged in a gradient coil layer. In addition to the gradient coil apparatus, at least one part of the at least one shim coil element is arranged in the gradient coil layer.
    Type: Application
    Filed: May 16, 2020
    Publication date: November 19, 2020
    Inventors: Brendan Whelan, Heiko Rohdjeß, Martino Leghissa
  • Publication number: 20070284548
    Abstract: A particle therapy system is provided. The particle therapy system includes a rotatable gantry being operable to generate a particle beam during operation and a measuring instrument for determining a position of the particle beam. The gantry is movable in the axial direction to correct a deviation in the position of the particle beam from an axial set-point position.
    Type: Application
    Filed: March 12, 2007
    Publication date: December 13, 2007
    Inventors: Werner Kaiser, Vitali Lazarev, Heiko Rohdjess
  • Publication number: 20070051904
    Abstract: A gantry system for particle therapy system, therapy plan and radiation method for a particle therapy with such a gantry system is provided. The gantry system for a particle therapy system includes a particle beam. A first beam guiding device rotatable about an axis of rotation of the gantry guides the particle beam so that the particle beam strikes a treatment location at a gantry incidence direction. The gantry incidence direction deviates from the axis of rotation and is variable. A second beam guiding device guides the particle beam to a treatment location in a second direction.
    Type: Application
    Filed: August 25, 2006
    Publication date: March 8, 2007
    Inventors: Werner Kaiser, Heiko Rohdjess, Andres Sommer, Tim Use