Evaluation of the Feasibility and Quantitative Accuracy of a Generalized Scatter 2D PET Reconstruction Method

Figure 8

The CRC curves for the #3 (largest hot) disk calculated when only trues are present and with 50% scatter fraction calculated using the conventional LOR-MLEM approach and with the GS-MLEM approach using different thresholds defined by the ratio of the area of intersection between the TCA and image matrix to the total image matrix area. Points #1, #2, and #3 identify the evaluation points for reconstructions using GS-MLEM method, only trues, and the LOR-MLEM, respectively.