Method and apparatus for calibrating X-ray detectors in a CT-imaging system
US7476026B2 · kind B2 · utility
6Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2001 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Apr 21, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/585
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of adjusting values for sensitivities of X-ray detectors comprised in a CT-imager that generate signals responsive to X-rays from an X-ray source in the imager, comprising: acquiring signals generated by X-ray detectors in the CT-imager responsive to X-rays incident thereon from the X-ray source for views taken during a scanning procedure performed by the CT-imager to image a patient when only air is present in a space between the X-ray source and the detectors; and using the signals to adjust the values of the sensitivities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.