Methods for positive emission tomography (PET) target image segmentation
AssigneeCase Western Reserve University
InventorsYiran Zheng, Barry W. Wessels
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Abstract
A method for positive emission tomography (PET) target image segmentation is provided. The method comprises capturing and digitizing image data of a selected target, determining an initial concentration ratio based on an initial source background ratio and an initial volume estimate of the selected target employing a concentration ratio table, determining a desired threshold from the initial concentration ratio and the initial volume estimate employing a threshold table, and determining a final volume estimate of the selected target based on the determined desired threshold.
Claims18
A method for positive emission tomography (PET) target image segmentation, the method comprising:
- receiving, by a computer system, captured and digitized image data of a selected target;
- determining, by the computer system, an initial volume estimate of the selected target based on the image data of the selected target;
- determining, by the computer system, an initial concentration ratio based on an initial source background ratio and the initial volume estimate of the selected target employing a concentration ratio table;
- determining, by the computer system, a desired threshold from the initial concentration ratio and the initial volume estimate employing a threshold table;
- and
- determining, by the computer system, a final volume estimate of the selected target based on the determined desired threshold.
A non-transitory computer readable medium having computer executable instructions for performing a method for positive emission tomography (PET) target image segmentation, the method comprising:
- receiving captured and digitized image data of a selected target;
- determining an initial volume estimate of the selected target based on the image data of the selected target;
- determining an initial concentration ratio based on an initial source background ratio and the initial volume estimate of the selected target employing a concentration ratio table;
- determining a desired threshold from the initial concentration ratio and the initial volume estimate employing a threshold table;
- and
- determining a final volume estimate of the selected target based on the determined desired threshold.
A computer system comprising:
- a memory for storing computer executable instructions;
- and
- a processor for accessing the memory and executing the computer executable instructions, the computer executable instructions being configured to perform a method for positive emission tomography (PET) target image segmentation, the method comprising:
- receiving captured and digitized image data of a selected target;
- determining an initial volume estimate of the selected target based on the image data of the selected target;
- determining an initial concentration ratio based on an initial source background ratio and the initial volume estimate of the selected target employing a concentration ratio table;
- determining a desired threshold from the initial concentration ratio and the initial volume estimate employing a threshold table;
- and
- determining a final volume estimate of the selected target based on the determined desired threshold.
Dependencies are inferred from the claim text.