Radiation therapy treatment plan improvement through use of a knowledge base
US9757589B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 13, 2016 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Apr 13, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for determining a radiation therapy dose distribution includes selecting a treatment type from a database. An organ at risk (OAR) distance to target map is determined. The OAR distance to target map includes distances to a target organ for respective portions of an OAR, and the OAR distances are determined from a segmented patient organ image. A cohort average dose distance to target histogram is selected from the database. Dose values to the portions of the OAR are assigned to form a first 3D dose distribution map, where the dose values are from the selected cohort average dose distance to target histogram. A second 3D dose distribution map is determined based on a field arrangement determined by the treatment type, and the first 3D dose distribution map. A dose distance to target histogram is calculated using the second 3D dose distribution map and the distance to target map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.