Method and system for reconstructing computed tomography images using redundant data
US6778630B2 · kind B2 · utility
7Cited by
6References
24Claims
0Family size
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Key dates
| Filing date | Mar 25, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Mar 25, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and system for reconstructing an x-ray image from a partial orbit through the use of a “virtual” fan angle. The virtual fan angle is determined based upon the range of angular positions spanned by a source in a CT instrument or a selected smaller angle. Exposure data is obtained and he virtual fan angle is used to weight the exposure data. Image reconstruction can then proceed using the weighted exposure data. The described methods and system also function for data collected over a complete orbit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.