Patents by Inventor Vibha Chaswal

Vibha Chaswal 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).

  • Method and apparatus for treatment planning using implanted radioactive sources
    Patent number: 8409071
    Abstract: A pre-computed importance function providing ex ante assessment of optimal placement of a single radioactive source is used for sequential placement of multiple radioactive sources. As each source is placed, the importance function may be modified to reflect the dose implemented by that source and all sources already placed. The greedy algorithm employed by this technique makes possible optimization of additional dimensions of treatment planning including, using directional and isotropic sources, using different source isotopes, using optimum source strengths, using source locations that are not on the regular grid and using a single movable source for variable times at different locations.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: April 2, 2013
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Vibha Chaswal, Bruce R. Thomadsen, Douglass L. Henderson
  • METHOD AND APPARATUS FOR TREATMENT PLANNING USING IMPLANTED RADIOACTIVE SOURCES
    Publication number: 20090182187
    Abstract: A pre-computed importance function providing ex ante assessment of optimal placement of a single radioactive source is used for sequential placement of multiple radioactive sources. As each source is placed, the importance function may be modified to reflect the dose implemented by that source and all sources already placed. The greedy algorithm employed by this technique makes possible optimization of additional dimensions of treatment planning including, using directional and isotropic sources, using different source isotopes, using optimum source strengths, using source locations that are not on the regular grid and using a single movable source for variable times at different locations.
    Type: Application
    Filed: March 27, 2009
    Publication date: July 16, 2009
    Inventors: Vibha Chaswal, Bruce R. Thomadsen, Douglass L. Henderson