Radiation therapy treatment plan improvement through use of knowledge base
US8774358B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Sep 12, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiation therapy dose distribution method starts with selecting a treatment type. Then an organ at risk (OAR) distance to target map is determined. The OAR distance to target map comprises distances to a target organ for portions of an OAR. The OAR distances are determined from at least one segmented patient organ image. A cohort average dose distance to target histogram is selected. A dose value to the portions of the OAR are assigned to form a first 3D dose distribution map. 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.