System And Method For Artifact Reduction In An Image
AssigneesMedtronic Navigation, Inc., The Johns Hopkins University
InventorsPatrick A. HELM, Jeffrey H. SIEWERDSEN, Ali UNERI, Wojciech ZBIJEWSKI, Xiaoxuan ZHANG, Joseph W. STAYMAN, IV
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Abstract
Selected artifacts, which may be based on distortions or selected attenuation features, may be reduced or removed from a reconstructed image. Various artifacts may occur due to the presence of a metal object in a field of view. The metal object may be identified and removed from a data that is used to generate a reconstruction.
Claims20
A method of reducing artifacts in an image due to an object, comprising:
- accessing parameters of the object;
- creating at least one forward projection of the object based on the accessed parameters;
- registering the object in the forward projection to at least one acquired projection having the object therein;
- modifying the at least one acquired projection to a representation of the registered object;
- and
- generating a reconstruction based on the modified at least one acquired projection.
A system for reducing artifacts in an image due to an object, comprising:
- a processor system configured to execute instructions for:
- accessing parameters of the object;
- creating at least one forward projection of the object based on the accessed parameters;
- registering the object in the forward projection to at least one acquired projection having the object therein;
- modifying the at least one acquired projection to a representation of the registered object;
- and
- generating a reconstruction based on the modified at least one acquired projection;
- and
- a display device to display a visualization based on the generated reconstruction.
A method of reducing artifacts in an image due to an object, comprising:
- operating a processor system for:
- accessing parameters of the object;
- creating at least one forward projection of the object based on the accessed parameters;
- registering the object in the forward projection to at least one acquired projection having the object therein;
- modifying the at least one acquired projection to a representation of the registered object;
- and
- generating a reconstruction based on the modified at least one acquired projection;
- displaying a visualization of the generated reconstruction.
Dependencies are inferred from the claim text.