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3D and fully 4D dynamic PET iterative image reconstructions are usually performed with a predefined set of reconstruction parameters (number of iterations, level of smoothing, number and type of basis functions used in the 4D reconstruction). These parameters are often chosen without due attention to i) the specific task (reason for the scan) and ii) the unique characteristics of the acquired data...
Task-based selection of image reconstruction methodology in emission tomography is a critically important step when designing a PET protocol. This work concerns optimizing performance for a range of quantification tasks: finding the radioactivity concentration for different sizes of region of interest (ROI) and different group sizes. It is shown that there is a tremendous impact of ROI and group size...
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