Mitigation of interplay effect in particle radiation therapy
US10583313B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 28, 2018 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Sep 6, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1089
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.