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:
Nov. 10, 2020
Filed:
Aug. 03, 2017
Hao H. Zhang, Potomac, MD (US);
Gokhan Kirlik, Baltimore, MD (US);
Warren D. D'souza, Timonium, MD (US);
Byong Young Yi, Fulton, MD (US);
Hao H. Zhang, Potomac, MD (US);
Gokhan Kirlik, Baltimore, MD (US);
Warren D. D'Souza, Timonium, MD (US);
Byong Young Yi, Fulton, MD (US);
UNIVERSITY OF MARYLAND, BALTIMORE, Baltimore, MD (US);
Abstract
A method and apparatus is presented for optimizing a treatment plan for irradiation therapy. The method includes determining voxels in a reference frame of a radiation source that rotates at an angular rate of change and emits a beam at a plurality of angles. The beam has a beam intensity and a cross sectional shape based on an aperture of a collimator at each angle. The method includes determining an initial aperture value at each angle and minimizing a single objective function subject to a constraint on an aperture rate of change to determine an aperture and beam intensity at each angle. The method also includes delivering a beam of radiation with controlled intensity at each angle based on the beam intensity and aperture and turning the beam of radiation off at an intervening angle not included in the plurality of angles.