Table 6.
Image contrast and background variability for different sphere diameters (whole-body PET), with sphere-to-background ratio of 4:1
| PET system | Image Contrast % (Background Variability%) | |||||
|---|---|---|---|---|---|---|
| 10 mm | 13 mm | 17 mm | 22 mm | 28 mm | 37 mm | |
| RefleXion | N/A | 29.6 (14.8) | 64.9 (12.4) | 66.5 (10.3) | 81.8 (8.8) | 81.2 (8.3) |
| Philips-Vereos | 38.4 (8.4) | 61.3 (7.1) | 65.9 (5.9) | 68.5 (4.6) | 83.4 (3.5) | 86.4 (2.8) |
| GE-Discovery MI | 51.7 (10.0) | 61.5 (7.8) | 66.2 (6.0) | 81.3 (3.8) | 86.6 (3.8) | 90.0 (3.0) |
| Siemens-Biograph Vision | 93.1 (6.4) | 73.5 (5.0) | 79.0 (4.0) | 87.0 (3.1) | 86.3 (2.7) | 89.4 (2.2) |
| Toshiba- Celesteion | 27.9 (6.2) | 48.6 (5.3) | 52.0 (4.6) | 60.5 (4.1) | 72.9 (3.9) | 77.1 (3.8) |