The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2013
Filed:
Mar. 27, 2009
Vibha Chaswal, Madison, WI (US);
Bruce R. Thomadsen, Madison, WI (US);
Douglass L. Henderson, Madison, WI (US);
Vibha Chaswal, Madison, WI (US);
Bruce R. Thomadsen, Madison, WI (US);
Douglass L. Henderson, Madison, WI (US);
Wisconsin Alumni Research Foundation, Madison, WI (US);
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.