Table 1.
Overview of a number of images and patients/lesions as well as PET image reconstruction parameters before image harmonization for the different PET scanners
| Systema | Images | Number of patient | Early and/or late images | Number of lesions | Emission time (min)b | Iteration/Subs. | Voxel size (mm3) | 3D Gaussian filter (mm) | Resolution (mm)c |
|---|---|---|---|---|---|---|---|---|---|
| Duo | 10 | 5 | 24 h + 120 h | 24 | 3.5 | 4/16 | 1.73 × 1.73 × 2.43 | 0 | 6.6 |
| 7 | 7 | 24 h | 20 | 3.5 | 4/16 | 1.53 × 1.53 × 2.43 | 0 | 6.6 | |
| mCT | 2 | 1 | 24 h + 120 h | 8 | 2 | 6/12 | 2.04 × 2.04 × 2.03 | 4 | 6.8 |
| 6 | 3 | 24 h + 120 h | 22 | 2 | 6/12 | 1.45 × 1.45 × 1.50 | 4 | 6.8 | |
| mMR | 12 | 6 | 24 h + 120 h | 32 | 8 | 3/21 | 2.09 × 2.09 × 2.03 | 5 | 7.0 |
| 6 | 3 | 24 h + 120 h | 22 | 8 | 3/21 | 2.09 × 2.09 × 2.03 | 4 | 6.3 | |
| 5 | 5 | 24 h | 16 | 8 | 3/21 | 1.74 × 1.74 × 2.03 | 4 | 6.3 | |
| 2 | 2 | 24 h | 4 | 8 | 3/21 | 2.09 × 2.09 × 2.03 | 4 | 6.3 |
aBiograph Duo PET/CT, Biograph mCT PET/CT, and Biograph mMR PET/MR
bEmission time per bed
cEstimated reconstructed PET spatial resolution