X ray imaging system with scatter radiation correction and method of using same
US8873703B2 · kind B2 · utility
8Cited by
32References
41Claims
0Family size
Assignee
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Key dates
| Filing date | May 7, 2009 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Dec 6, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/508
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A CT scanner with scatter correction device and a method for scatter correction are provided. The method comprises positioning shields for shielding some of the CT detector elements from direct X ray radiation, while allowing scattered radiation to arrive at said shielded elements; measuring scatter signals from said shielded elements, indicative of scattered radiation intensity; and correcting for scatter by subtracting scatter intensity values estimated from said measured scatter signals from signals measured by unshielded detector elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.