Table 2.
CR relative percentage difference between no-array and the anterior (A) part of each array for each sphere size. The CR was estimated for both reconstruction methods (MRAC and off-line DCTAC)
| Sphere size (mm) | 10 | 13 | 17 | 22 | 28 | 37 | |
|---|---|---|---|---|---|---|---|
| MRAC | PET/MRI 32ch (%) | 4.8 | 2.8 | 5.2 | 3.8 | 2.1 | − 1.5 |
| mMR12ch (%) | 15.1 | 2.6 | − 4.0 | − 5.4 | 2.0 | 5.2 | |
| MRI 32ch (%) | − 20.2 | − 17.9 | − 22.7 | − 16.4 | − 13.1 | − 17.3 | |
| p value | 0.003 | 0.01 | 0.00 | 0.001 | 0.00 | 0.00 | |
| DCTAC | PET/MRI 32ch (%) | 3.8 | 0.9 | 3.6 | 2.0 | 3.7 | 2.4 |
| mMR12ch (%) | 6.0 | 8.0 | 4.1 | 3.5 | 4.2 | 6.6 | |
| MRI 32ch (%) | − 10.6 | − 7.7 | − 9.5 | − 11.1 | − 6.8 | − 6.2 | |
| p value | 0.007 | 0.011 | 0.129 | 0.053 | 0.050 | 0.001 |