Beam-off motion thresholds in radiation therapy based on breath-hold level determination
US11878189B2 · kind B2 · utility
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Key dates
| Filing date | Aug 31, 2022 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Aug 31, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1091
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A computer-implemented method of performing a treatment fraction of radiation therapy comprises: determining a current position of a target volume of patient anatomy; based on the current position of the target volume, computing an accumulated dose for non-target tissue proximate the target volume; determining that the accumulated dose is less than a current value for a dose budget of the non-target tissue; and in response to the accumulated dose being less than the current value for the dose budget, applying a treatment beam to the target volume while the target volume is in the current position.
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