Acquisition and reconstruction of projection data using a stationary CT geometry
US7706499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Mar 20, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/027
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods are provided for acquiring and reconstructing projection data using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a non-sequential activation of X-ray source locations on an annular source is employed to acquire projection data. In another embodiment, a distributed source is tilted relative to an axis of the scanner to acquire the projection data. In a further embodiment, a plurality of X-ray source locations on an annular source are activated such that the aggregated signals correspond to two or more sets of spatially interleaved helical scan data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.