System and method for estimating and manipulating estimated radiation dose
US9289627B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2011 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Aug 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/29
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods are provided for permitting manipulation of an achievable dose distribution estimate deliverable by a radiation delivery apparatus for proposed treatment of a subject. One such method comprises: determining a dose modification voxel for which it is desired to modify the dose value and a corresponding magnitude of desired dose modification; for each of a plurality of beams: (i) characterizing the beam as a two-dimensional array of beamlets, wherein each beamlet is associated with a corresponding intensity value and a ray line representing the projection of the beamlet into space; and (ii) identifying one or more dose-change beamlets which have associated ray lines that intersect the dose modification voxel; modifying the intensity values of at least one of the dose-change beamlets; and updating the achievable dose distribution estimate to account for the modified intensity values of the at least one of the dose-change beamlets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.