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:
Aug. 08, 2023
Filed:
Sep. 27, 2019
Siemens Healthineers International Ag, Steinhausen, CH;
Varian Medical Systems, Inc., Palo Alto, CA (US);
Santtu Ollila, Helsinki, FI;
Todd Arlin Wareing, Blackfoot, ID (US);
John Morton McGhee, Hollis, NH (US);
Douglas Allen Barnett, Jr., Pattersonville, NY (US);
Alexander Enrique Maslowski, Helsinki, FI;
SIEMENS HEALTHINEERS INTERNATIONAL AG, Steinhausen, CH;
VARIAN MEDICAL SYSTEMS, INC., Palo Alto, CA (US);
Abstract
A method of beam angle optimization for an IMRT radiotherapy treatment includes providing a patient model having one or more regions of interest (ROIs), defining a delivery coordinate space (DCS), for each ROI, solving an adjoint transport to obtain an adjoint solution field from the ROI, for each vertex in the DCS, evaluating an adjoint photon fluence by performing ray tracing of the adjoint solution field, evaluating a dose of the ROI using the adjoint photon fluence, for each vertex in the DCS, evaluating a respective beam's eye view (BEV) score of each pixel of a BEV plane using the doses of the one or more ROIs, determining one or more BEV regions in the BEV plane based on the BEV scores, determining a BEV region connectivity manifold based on the BEV regions, and determining a set of IMRT fields based on the BEV region connectivity manifold.