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.

Date of Patent:
Jun. 02, 2020

Filed:

Dec. 08, 2017
Applicant:

Elekta, Inc., Atlanta, GA (US);

Inventors:

Sami Hissoiny, Longueuil, CA;

Michel Moreau, Verona, WI (US);

Assignee:

Elekta, Inc., Atlanta, GA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06G 7/56 (2006.01); A61N 5/10 (2006.01);
U.S. Cl.
CPC ...
A61N 5/1031 (2013.01); A61N 5/1039 (2013.01); A61N 5/1064 (2013.01); A61N 5/1037 (2013.01); A61N 5/1038 (2013.01); A61N 2005/1034 (2013.01); A61N 2005/1052 (2013.01); A61N 2005/1055 (2013.01); A61N 2005/1058 (2013.01); A61N 2005/1061 (2013.01);
Abstract

Radiation treatment planning and administration can include a Monte Carlo computer simulation tool to simulate photo-generated electrons in tissue. In the simulation, electrons that have left tissue voxels and entered air voxels can be evaluated to identify electrons that are circling along a spiraling trajectory in the air voxels. After at least one full spiraling circumference or other specified distance has been traversed using a detailed electron transport model, a simpler linear ballistic motion model can be instituted. This speeds simulation while accurately accounting for spiraling electrons that re-enter tissue voxels.


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