Parameter | Protocol A | Protocol B |
Algorithm | OSEM | OSEM |
Time of flight | Yes | Yes |
Point-spread function | No | No |
Iterations (n) | 2 | 2 |
Subsets (n) | 21 | 21 |
Postreconstruction filter | 3-dimensional gaussian, 5 mm FWHM | None |
Matrix size | 200 × 200 | 256 × 256 |
Pixel size (mm) | 4.0 | 2.0 |
Slice separation (mm) | 3.3 | 3.3 |
Scatter correction | Single-scatter simulation | Single-scatter simulation |
Attenuation correction | CT-based | CT-based |
Randoms correction | Delayed-event subtraction | Delayed-event subtraction |