Patents Assigned to Tomo Therapy Incorporated
  • Method and system for evaluating delivered dose
    Patent number: 7643661
    Abstract: A system and method of evaluating a radiation dose delivered to a patient receiving radiation therapy. The method includes the acts of generating a time-based series of patient images, collecting a time-based series of data indicating patient motion, and evaluating a radiation dose delivered to the patient based upon the time-based series of patient images and the time-based series of data.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: January 5, 2010
    Assignee: Tomo Therapy Incorporated
    Inventors: Kenneth J. Ruchala, Gustavo H. Olivera, Weiguo Lu, Eric Schnarr, Jason Haimerl, Thomas R. Mackie, Jeffrey M. Kapatoes
  • System and method of generating contour structures using a dose volume histogram
    Patent number: 7609809
    Abstract: A system and method of defining a new region of interest for an existing region of interest using a dose volume histogram. The method includes the acts of generating a dose volume histogram of radiation dose for a pre-existing region of interest, selecting a subset of the dose volume histogram, and defining a new region of interest that corresponds to the selected subset of the dose volume histogram.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: October 27, 2009
    Assignee: Tomo Therapy Incorporated
    Inventors: Jeffrey M. Kapatoes, Gustavo H. Olivera, Eric Schnarr, Weiguo Lu, Kenneth J. Ruchala, Paul J. Reckwerdt, John H. Hughes, Thomas R. Mackie
  • Method for reconstruction of limited data images using fusion-aligned reprojection and normal-error-aligned reprojection
    Patent number: 6915005
    Abstract: The present invention provides methods of using current but incomplete data to prepare an approximated complete image of a patient potentially undergoing radiation therapy. A complete image of the patient is fused or aligned with a limited patient image using image registration techniques. The aligned image is converted to sinogram data. This sinogram data is compared to sinogram data corresponding to the limited patient image to determine what data exists beyond the scope of the limited sinogram. Any additional data is added to the limited data sinogram to obtain a complete sinogram. This complete sinogram is then reconstructed into an image that approximates the complete image that would have been taken at the time the limited image was obtained.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: July 5, 2005
    Assignee: Tomo Therapy Incorporated
    Inventors: Kenneth J. Ruchala, Gustavo H. Olivera, Thomas R. Mackie, Jeffrey M. Kapatoes, Paul J. Reckwerdt