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US 10,255,684 B2Granted
Motion correction for PET medical imaging based on tracking of annihilation photons
AssigneeUniversity of Tennessee Research Foundation
InventorsDustin R. Osborne, Dongming Hu, Sang Hyeb Lee
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Abstract
Systems and methods for correcting motion during medical imaging involve using a detector to track annihilation photons produced by one of (i) external emitting sources placed onto a body of a person being imaged or (ii) an object of interest in the body. Motion information is generated based on the tracking. A motion-corrected image is formed from recorded image data, using the motion information.
Claims10
A method for correcting motion during medical imaging, the method comprising:
- tracking annihilation photons produced by one of (i) external emitting sources placed onto a body of a person being imaged or (ii) an object of interest in the body, wherein said tracking includes tracking all coincident lines of response detected at a detector element, in medical imaging data, wherein each coincident line of response corresponds to a pair of annihilation photons detected at connecting points of the coincident line of response;
- generating motion information based on the tracking of each of said coincident lines of response, wherein the motion information includes motion vectors between static regions corresponding to locations of limited or no motion;
- and
- forming a motion-corrected image from recorded image data using the motion information.
1 more element
A system for correcting motion during medical imaging, the system comprising:
- a detector device that tracks annihilation photons produced by one of (i) external emitting sources placed onto a body of a person being imaged or (ii) an object of interest in the body, wherein tracking includes tracking all coincident lines of response detected at a detector element, in medical imaging data, wherein each coincident line of response corresponds to a pair of annihilation photons detected at connecting points of the coincident line of response;
- and
- a hardware processor that generates motion information based on the tracking of each of said coincident lines of response, and forms a motion-corrected image from raw line of response data using the motion information, wherein the motion information includes motion vectors between static regions corresponding to locations of limited or no motion.
Dependencies are inferred from the claim text.