Table 1 Reconstruction parameters and options investigated
From: Development of a bespoke phantom to optimize molecular PET imaging of pituitary tumors
Parameter/correction | Algorithm | Options | Expert evaluation |
|---|---|---|---|
Time of flight | OSEM, BPL* | Off and On | Not applicable |
Point spread function correction (PSF) | OSEM, BPL* | Off and On | Off and On |
Matrix size (with 30 cm2 FOV) | OSEM, BPL* | 128 × 128 and 256 × 256 | 128 × 128 and 256 × 256 |
Post-reconstruction smoothing (Gaussian—full width half maximum [FWHM]) | OSEM | 1, 2 and 3 mm | 2 mm |
OSEM Iterations (all with 24 subsets) | OSEM | 3, 5, 7 and 9 | 3, 5, 7 and 9 |
Regularization parameter (β) | BPL | 50, 100, 200, 300, 400, 500, 600, 700, 800, 900 and 1000 | 50, 100, 200, 300, 400, 500, 600, 800 and 1000 |