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US 2008/0187091 A1Published application
Method of iterative reconstruction for energy discriminating computed tomography systems
AssigneeGeneral Electric Company
InventorsSamit Kumar Basu, Bruno Kristiaan Bernard DeMan
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Abstract
A new method extends iterated coordinate descent (“ICD”)—an optimization method employed in some statistical reconstruction algorithms—to handle material decomposition (“MD”) for energy discriminating computed tomography (“EDCT”) acquisitions.
Claims20
A method for re-projecting images, comprising:
- obtaining current path length estimates;
- and
- linearizing one or more spectral models about the current path length estimates.
A computed tomography system, comprising:
- a multi-spectral x-ray source;
- a detector positioned to receive multi-spectral acquisition data from the multi-spectral x-ray source;
- a computer processor configured to:
- obtain current path length estimates;
- and
- linearize one or more spectral models about the current path length estimates.
3 more elements
Dependencies are inferred from the claim text.