Systems and methods for high-resolution spectral computed tomography imaging
US11039801B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2019 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Dec 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and systems are provided for high-resolution computed tomography imaging. In one embodiment, a method comprises detecting, with a detector array comprising a plurality of individual detectors each configured with a first number of energy bins, photons generated by an x-ray source and attenuated by a subject to be imaged, generating a first dataset, for a virtual detector array comprising a combination of individual detectors and macro-detectors, by selectively aggregating a subset of the individual detectors into the macro-detectors with a second number of energy bins, generating a second dataset, for an augmented detector array comprising the plurality of individual detectors each configured with the second number of energy bins, by up-sampling the first dataset, and reconstructing an image of the subject from the second dataset. In this way, high-resolution detector arrays can acquire minimal data while maintaining a high image resolution and spectral resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.