Table 2.
Tabulation of the processing time of the different steps in estimation and reconstruction on a linux platform with two dual core 3.0 GHz CPU’s (4 CPU’s)
Activity | Time (minutes) |
---|---|
Rebin list-mode data | 1.5 |
Synchronization | 3.5 |
Separate body and respiratory motion | 4.5 |
Reconstruct with only resolution compensation to check attenuation map alignment | 1.5 |
Check attenuation map alignment | 2.0 |
Reconstruct with attenuation, resolution, and scatter compensation for heart mask definition | 1.5 |
Define heart mask | 1.5 |
Reconstruct 6 reference and 6 non-reference respiratory projection sets | 8.5 |
Estimate respiratory amplitude (6DOF) | 0.25 |
Reconstruct simultaneously and in sequence 7 respiratory projections sets | 10.0 |
Reorientation and generation of polar maps | 5.0 |
Total | 38.75 |
Note that reconstructing without attenuation compensation to check the alignment of the attenuation map is not described in the text. Such QC is also done clinically