Patents by Inventor Ray S. Xu

Ray S. Xu 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).

  • Intrinsic co-registration for modular multimodality medical imaging systems
    Patent number: 8498464
    Abstract: A method and device are provided for matching a patient coordinate system (PCS) of a nuclear medical imaging scanner with a coordinate system of a CT scanner in a multimodality modular imaging system, based on a predefined relationship between a vertical position of a patient bed during the NM scan; an axial position of the patient bed during the NM scan; an axial distance between a gantry of the NM scanner and a gantry of the CT scanner; and a vertical distance between a center of orbit of the NM scanner and a center of rotation of the CT gantry.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: July 30, 2013
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Ray S. Xu, James T. Chapman
  • Field of view calibration for modular nuclear medical imaging system
    Patent number: 8064732
    Abstract: A method and apparatus for correcting misalignment between fields of view of a CT device and a NM device of a modular multimodality medical imaging system, by providing a Field Of View Calibration Matrix (FOV-CM) containing rotational and translational transformations between coordinate systems of the CT and NM systems.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: November 22, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Ray S. Xu, James T. Chapman
  • Reference height calibration scheme for modular multi-modality medical imaging system
    Patent number: 7986988
    Abstract: A reference height calibration procedure obtains a reference error value, which can be used to adjust a height calibration parameter for registering the fields of view (FOVs) of the modules of a multi-modality medical imaging system such as a SPECT-CT imaging system.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: July 26, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Ray S. Xu, Robert Peter Hurley, III, James T. Chapman
  • Intrinsic Co-Registration For Modular Multimodality Medical Imaging Systems
    Publication number: 20090087061
    Abstract: A method and device are provided for matching a patient coordinate system (PCS) of a nuclear medical imaging scanner with a coordinate system of a CT scanner in a multimodality modular imaging system, based on a predefined relationship between a vertical position of a patient bed during the NM scan; an axial position of the patient bed during the NM scan; an axial distance between a gantry of the NM scanner and a gantry of the CT scanner; and a vertical distance between a center of orbit of the NM scanner and a center of rotation of the CT gantry.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 2, 2009
    Applicant: SIEMENS MEDICAL SOLUTIONS USA, INC.
    Inventors: Ray S. Xu, James T. Chapman
  • Field of View Calibration For Modular Nuclear Medical Imaging System
    Publication number: 20090086925
    Abstract: A method and apparatus for correcting misalignment between fields of view of a CT device and a NM device of a modular multimodality medical imaging system, by providing a Field Of View Calibration Matrix (FOV-CM) containing rotational and translational transformations between coordinate systems of the CT and NM systems.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 2, 2009
    Applicant: SIEMENS MEDICAL SOLUTIONS USA, INC.
    Inventors: Ray S. Xu, James T. Chapman