Normalizing and calibrating therapeutic radiation delivery systems
US5511549A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1995 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Feb 13, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1087
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is directed to a method for radiation beam therapy delivery system normalization and dose calibration. A prescribed treatment plan is compared to a database of pre-existing and pre-calibrated treatment plans. Upon existence of a matching plan, appropriate calibration factors are assigned to the delivery system monitors according to the pre-existing plan. Variations in delivery system operation are corrected by independent correction of all delivery system monitors established by standard relative calibration taken prior to patient treatment. The advantages of the present invention are particularly significant for proton therapy facilities containing a plurality of delivery systems. The method permits a prescribed treatment to be administered with accuracy not only at the station associated with the initial treatment planning, but at any available delivery station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.