Method and apparatus for compensating non-uniform detector collimator plates
US7187750B1 · kind B1 · utility
5Cited by
10References
20Claims
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Key dates
| Filing date | Sep 20, 2005 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Sep 20, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for obtaining data includes scanning an object with radiation to collect projection data using an imaging system having a detector array with detector cells and a post-patient collimator, wherein the post-patient collimator has plates having non-uniform thicknesses. The method further includes applying a correction to the projection data to shift an effective center of at least some of the detector cells to compensate for the non-uniform thicknesses of the collimator plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.