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:
Jun. 03, 2025
Filed:
Jul. 09, 2021
The University of Sydney, Sydney, AU;
University of Technology Sydney, Sydney, AU;
Lars Mejnertsen, Sydney, AU;
Paul Keall, Sydney, AU;
Doan Trang Nguyen, Sydney, AU;
Emily Hewson, Sydney, AU;
THE UNIVERSITY OF SYDNEY, Sydney, AU;
Abstract
Methods, apparatuses and systems are disclosed for dose-based optimization related to multi-leaf collimator ('MLC') tracking during radiation therapy. In an example, a method includes calculating a planned radiation dose using an MLC plan in an un-shifted dose volume, acquiring, using a radiation machine, a target position through motion tracking, and shifting the dose volume by the target position. The method also includes integrating a three-dimensional dose into a two-dimensional beam's eye view grid and fitting, using the radiation machine for each leaf track, an MLC aperture by minimizing a cost function. The method further includes calculating and accumulating a delivered dose based on the fitted leaf positions of the MLC and updating a gantry position and MLC leaves to update a next planned dose.