Patents by Inventor Jeffrey Harold Siewerdsen

Jeffrey Harold Siewerdsen 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 Artifact Reducation In An Image
    Publication number: 20230419565
    Abstract: Selected artifacts, which may be based on distortions or selected attenuation features, may be reduced or removed from a reconstructed image. Various artifacts may occur due to the presence of a metal object in a field of view. The metal object may be identified and removed from a data that is used to generate a reconstruction.
    Type: Application
    Filed: September 11, 2023
    Publication date: December 28, 2023
    Inventors: Patrick A. HELM, Jeffrey Harold SIEWERDSEN, Ali UNERI, Wojciech ZBIJEWSKI, Xiaoxuan ZHANG, Joseph STAYMAN
  • Optimized aperture selection imaging computed tomography system and method
    Patent number: 9545231
    Abstract: A method and imaging system for operating imaging computed tomography using at least one radiation source and at least one detector to generate an image of an object. The method includes: defining desired image characteristics; and performing calculations to determine the pattern of fluence to be applied by the at least one radiation source, to generate said desired image quality or characteristics. Then, the at least one radiation source is modulated, to generate the intended pattern of fluence between the beam source and the object to be imaged. The desired image characteristics can provide at least one of: desired image quality in at least one defined region of interest; and at least one desired distribution of said image quality.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 17, 2017
    Assignee: UNIVERSITY HEALTH NETWORK
    Inventors: David A. Jaffray, Sean Alexander Graham, Jeffrey Harold Siewerdsen, Steven Joe Bartolac
  • OPTIMIZED APERTURE SELECTION IMAGING COMPUTED TOMOGRAPHY SYSTEM AND METHOD
    Publication number: 20130294572
    Abstract: A method and imaging system for operating imaging computed tomography using at least one radiation source and at least one detector to generate an image of an object. The method includes: defining desired image characteristics; and performing calculations to determine the pattern of fluence to be applied by the at least one radiation source, to generate said desired image quality or characteristics. Then, the at least one radiation source is modulated, to generate the intended pattern of fluence between the beam source and the object to be imaged. The desired image characteristics can provide at least one of: desired image quality in at least one defined region of interest; and at least one desired distribution of said image quality.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 7, 2013
    Inventors: David A. Jaffray, Sean Alexander Graham, Jeffrey Harold Siewerdsen, Steven Joe Bartolac