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:
Mar. 10, 2020
Filed:
Feb. 28, 2018
Varian Medical Systems Particle Therapy Gmbh, Troisdorf, DE;
University of Maryland, Baltimore, Baltimore, MD (US);
Per Rugaard Poulsen, Abyhoj, DK;
John Eley, Baltimore, MD (US);
Ulrich Langner, Ellicott City, MD (US);
Katja Langen, Baltimore, MD (US);
Varian Medical Systems Particle Therapy GmbH, Troisdorf, DE;
University of Maryland, Baltimore, Baltimore, MD (US);
Abstract
The present disclosure relates to a new scan technique for particle radiation therapy that may be used for cancer treatment. One embodiment relates to a method of mitigating interplay effect in particle radiation therapy in a moving target including a period of movement, where the particle radiation therapy defines a planned dose in each spot of each layer of the moving target. The method comprising dividing the planned dose in each spot into a number of spot repaintings; and generating a scan pattern for each layer by defining a beam-on time at each spot for each spot repainting, and calculating a wait time between consecutive beam-on times to distribute the spot repaintings for each spot of a respective layer are distributed over a duration of an integer number of periods of movement.