Radiation therapy device controller, processing method and program for same
US9393445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2011 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Aug 23, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This radiation therapy device controller selects, for a plurality of body motion phases, computed tomography image data obtained which shows a diseased portion, and generates, for each rotation angles of a ray source and a sensor array, a reconstructed image. The control device generates a radiation projection image which shows the diseased portion when the radiation is radiated if the rotation angle is a predetermined rotation angle, compares the reconstructed image of each of the plurality of body motion phases with the radiation projection image, and determines a body motion phase indicated by a reconstructed image in which a difference is small, to be a current respiratory phase. As a result, a position of the diseased portion calculated for the computed tomography image data in the computed tomography image data group of the respiratory phase in advance is identified to be a current position of the diseased portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.