Image generation device with optimized dose control
US8712121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2009 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Jun 14, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/542
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to an image generation device for generating an image from measured data, wherein image quality is optimized for a region of interest and to an imaging system comprising this image generation device. The image generation device comprises a noise determination unit for determining a distribution of noise in a projection domain of the region of interest, and a dose control unit (32) for determining a dose profile for a radiation source (2) of said image generation device based on said determined distribution of noise by using a noise propagation algorithm. Thereby, signal-to-noise ratio of a reconstructed volume can be improved and is not sensitively dependent on a selected region of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.