Methods and apparatus for reducing spectral artifacts in a computed tomograph system
US6266434A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1998 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Jul 17, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4021
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and apparatus for reducing spectral artifacts in a computed tomography (CT) system are described. In one embodiment, the CT system includes a plurality of multislice detector modules, a detector housing and a collimator adjacent the detector modules. Each detector module is mounted to the detector housing and includes a scintillator array. The collimator includes a plurality of plates that are positioned so that a x-ray beam shadow is centered over gaps in the scintillator array. In operation, the collimator separates the x-ray beams so that the scintillator gaps are protected and the x-ray beams are prevented from projecting through the scintillator array elements along a shortened length path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.