Spectral calibration of spectral computed tomography (CT)
US10507005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2016 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Mar 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10081
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is set forth herein a method including performing with an X-ray detector array of a CT imaging system one or more calibration scans, wherein the one or more calibration scans include obtaining for each element of the first through Nth elements of the X-ray detector array one or more calibration measurements; and updating a spectral response model for each element of the first through Nth elements using the one or more calibration measurements. In another aspect, a CT imaging system can perform imaging, e.g. including material decomposition (MD) imaging, using updated spectral response models for elements of an X-ray detector array. The spectral response models can be updated using a calibration process so that different elements of an X-ray detector array have different spectral response models.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.