Method and apparatus for determining treatment region and mitigating radiation toxicity
US9925393B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 14, 2016 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Sep 17, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for determining a contour of a treatment region in a patient includes a computer processor to receive input regarding a contour of at least one organ-at-risk (OAR) adjacent to the treatment region; receive input regarding an initial contour of the treatment region; predict a radiation toxicity to the at least one OAR based on the contour of the at least one OAR, the initial contour of the treatment region, and a radiation treatment regimen; determine whether the predicted radiation toxicity exceeds a threshold; and determine a contour of the treatment region by iteratively modifying the initial contour of the treatment region, and any subsequent modified contours of the treatment region, until a stopping condition is satisfied. The stopping condition can be a preselected number of iterations or that the predicted radiation toxicity using the contour in place of the initial contour is first calculated is below said threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.