Patents by Inventor Patrik Rogalla

Patrik Rogalla 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).

  • Publication number: 20200202588
    Abstract: A method and apparatus is provided to iteratively reconstruct a computed tomography (CT) image using a spatially-varying content-oriented regularization parameter, thereby achieving uniform statistical properties within respective organs/regions and different statistical properties (e.g., degree of smoothing and noise level) among the respective organs/regions. For example, less smoothing and sharper features/resolution can be applied within a lung region than within a soft-tissue region by using a smaller regularization parameter value in the lung region than in the soft-tissue region. This can be achieved, e.g., using a minimum intensity projection to suppress/eliminate sub-solid nodules in the lung region. The content-oriented regularization parameter can be generated by reconstructing an initial CT image, which is then segmented/classified according to organs and/or tissue type.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 25, 2020
    Applicants: CANON MEDICAL SYSTEMS CORPORATION, UNIVERSITY HEALTH NETWORK
    Inventors: Chung CHAN, Zhou YU, Jian ZHOU, Patrik ROGALLA, Bernice HOPPEL, Kurt Walter SCHULTZ
  • Patent number: 10685461
    Abstract: A method and apparatus is provided to iteratively reconstruct a computed tomography (CT) image using a spatially-varying content-oriented regularization parameter, thereby achieving uniform statistical properties within respective organs/regions and different statistical properties (e.g., degree of smoothing and noise level) among the respective organs/regions. For example, less smoothing and sharper features/resolution can be applied within a lung region than within a soft-tissue region by using a smaller regularization parameter value in the lung region than in the soft-tissue region. This can be achieved, e.g., using a minimum intensity projection to suppress/eliminate sub-solid nodules in the lung region. The content-oriented regularization parameter can be generated by reconstructing an initial CT image, which is then segmented/classified according to organs and/or tissue type.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: June 16, 2020
    Assignees: CANON MEDICAL SYSTEMS CORPORATION, UNIVERSITY HEALTH NETWORK
    Inventors: Chung Chan, Zhou Yu, Jian Zhou, Patrik Rogalla, Bernice Hoppel, Kurt Walter Schultz
  • Patent number: 5835556
    Abstract: A computed tomography-fluoroscopy method is invented for interventions comprising the steps of combining a floating patient table with a cross-sectional imaging modality for interventions under visual computed tomography control. A handle is installed on the patient table, which is mechanically decoupled from the central control system. During an intervention, the table is brought to a random position, and a single-scan or scan-series is triggered. A light-beam localizer is used for orientation and positioning the single-scan or scan-series.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: November 10, 1998
    Inventors: Patrik Rogalla, Sven Mutze