TABLE I.

Reconstruction time for the images shown in Figure 10. The overall reconstruction time includes the time used for the calculation of sensitivity image, image reconstruction, reading data files, and writing images into a file. The GPU computation time includes the actual calculation time and data transferring time. Times shown in the table are all for 10 iterations of list-mode TOF-PET image reconstruction.

Images	Overall Reconstruction time	GPU computation time
Figure 10(a): Group 1	62.61 seconds	2.45 seconds
Figure 10(b): Group 1+5	63.46 seconds	2.93 seconds
Figure 10(c): Group 1+5+3	64.65 seconds	3.38 seconds
Figure 10(d): Group 1+5+3+6	64.92 seconds	3.74 seconds
Figure 10(e): Group 1+5+3+6+4	65.17 seconds	4.15 seconds
Figure 10(f): Group 1+5+3+6+4+2	65.91 seconds	4.51 seconds