Studying dosimetric impact of motion to generate adaptive patient-specific margins in EBRT planning
US9744379B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 13, 2012 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Jun 18, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1072
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A treatment planning system (106) for generating patient-specific treatment margins. The system (106) includes one or more processors (142). The processors (142) are programmed to receive a radiation treatment plan (RTP) for irradiating a target (122) over the course of one or more treatment fractions. The RTP including one or more treatment margins around the target (122) and a planned dose distribution for the target (122). The processors (142) are further programmed to receive motion data for at least one of the treatment fractions of the RTP from one or more target surrogates (124), calculate a motion-compensated dose distribution for the target (122) using the motion data and the planned dose distribution, compare the motion-compensated dose distribution to the planned dose distribution, and adjust the treatment margins based on dosimetric differences between the motion-compensated dose distribution and the planned dose distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.