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US 11,298,095 B2Granted
Methods for x-ray imaging of a subject using multiple-energy decomposition
AssigneeXenselab, LLC
InventorsYing Zhao, YongSheng Chao
Life of this patent
Estimating the term…
Abstract
Methods for quantitatively separating x-ray images of a subject having three or more component materials into component images using spectral imaging or multiple-energy imaging with 2D radiographic hardware implemented with scatter removal methods. The multiple-energy system may be extended by implementing DRC multiple energy decomposition and K-edge subtraction imaging methods.
Claims45
A system which images a subject, the system comprising:
- an x-ray source configured to illuminate a subject, with x-rays having at least two different energy levels;
- an x-ray measuring device having at least one two dimensional detector and configured such that a subject can be located between the x-ray source and the x-ray measuring device, the x-ray measuring device further configured to detect the x-rays after the x-rays have passed through the subject;
- wherein the x-ray measuring device is configured to reduce an effect of x-ray scatter from the detected x-rays to produce at least one image, and
- wherein the x-ray measuring device is further configured to perform a pre-measurement calibration, the calibration being performed using each material component and composites of each material component of various thicknesses.
1 more element
A system which images a subject, the system comprising:
- an x-ray source configured to illuminate a subject, with x-rays having at least two different energy levels;
- an x-ray measuring device having at least one two dimensional detector and configured such that a subject can be located between the x-ray source and the x-ray measuring device, the x-ray measuring device further configured to detect the x-rays after the x-rays have passed through the subject, wherein the x-ray measuring device is configured to reduce an effect of x-ray scatter from the detected x-rays to produce at least one image and to identify at least one substance in the at least one image;
- and
- a database at each energy level for each material component and each combination of the material components with two or more components, with derived measurements without scatter interference, wherein x-ray measuring device is further configured to use the database to identify or quantify the at least one substance.
1 more element
Dependencies are inferred from the claim text.