Charged particle treatment planning system with PBS beamlets sequence optimized for high dose deposition rate
US11559702B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2021 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Aug 11, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1087
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A treatment planning system for generating a plan for treatment by radiation with charged particles beams applied by pencil beam scanning onto a target tissue comprising tumoral cells is provided. The treatment planning system performs a dose definition stage defining the doses to be deposited within the peripheral surface, a beam definition stage defining positions and dimensions of the beamlets of the PBS during the at least one high rate fraction, the beams definition stage including a dose rate definition stage comprising at least one high rate fraction, and a beamlets scanning sequence stage defining a scanning sequence of irradiation of the beamlets. The beamlets scanning sequence stage optimizes a time sequence of beamlets emission such that at the end of a fraction j, a dose is deposited onto at least a predefined fraction of each specific volume at a mean deposition rate superior or equal to a predefined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.