Table 6 Signal to noise ratio summary for 7.5:1 contrast sphere
From: Minimum lesion detectability as a measure of PET system performance
Scan time | Scanner | 1 × 1 × 1 mm voxel | 2 × 2 × 2 mm voxel | 4 × 4 × 4 mm voxel | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
500 μL | 250 | 125 | 63 | 31 | 500 | 250 | 125 | 63 | 31 | 500 | 250 | 125 | 63 | 31 | ||
16 min | Gemini TF | NA | NA | NA | NA | NA | 15.1 | 12.4 | 9.8 | 5.4 | 5.6 | 78.5 | 32.9 | 18.5 | 5.6 | 0.6 |
Vereos | 18.4 | 15.9 | 12.9 | 8.1 | 9.3 | 15.3 | 12.9 | 10.8 | 10.3 | 8.4 | 82.5 | 46.8 | 23.5 | 11.1 | 7.1 | |
710 | 20.1 | 20.3 | 15.5 | 8.9 | 2.9 | 69.5 | 21.2 | 9.7 | 10.0 | 2.8 | 73.8 | 58.2 | 21.5 | 9.1 | 1.1 | |
mCT | 19.0 | 17.3 | 12.9 | 10.3 | 6.8 | 12.2 | 15.4 | 11.4 | 8.1 | 4.7 | 89.2 | 51.1 | 25.0 | 9.9 | 4.2 | |
HRRT | 18.0 | 15.9 | 12.6 | 10.9 | 4.4 | 10.5 | 13.8 | 10.2 | 7.7 | 1.9 | 32.5 | 20.1 | 11.1 | 3.9 | 0.0 | |
8 min | Gemini TF | NA | NA | NA | NA | NA | 15.7 | 12.0 | 8.9 | 4.4 | 2.3 | 28.7 | 14.2 | 10.3 | 2.3 | 1.7 |
Vereos | 18.0 | 15.4 | 12.3 | 6.9 | 7.1 | 15.8 | 13.0 | 10.1 | 6.7 | 5.8 | 57.7 | 26.4 | 14.6 | 8.6 | 4.7 | |
710 | 16.9 | 18.6 | 13.9 | 7.7 | 1.4 | 73.2 | 17.7 | 18.4 | 6.9 | 1.0 | 47.3 | 42.4 | 12.2 | 6.1 | 0.2 | |
mCT | 19.0 | 16.3 | 13.4 | 9.5 | 3.6 | 12.7 | 15.1 | 11.5 | 7.2 | 3.4 | 67.7 | 40.8 | 20.4 | 8.8 | 2.4 | |
HRRT | 17.7 | 15.1 | 10.1 | 7.1 | 3.6 | 14.9 | 15.2 | 10.0 | 5.3 | 1.6 | 21.5 | 15.3 | 9.2 | 2.6 | 1.3 | |
4 min | Gemini TF | NA | NA | NA | NA | NA | 13.8 | 10.3 | 7.7 | 3.5 | 2.5 | 22.9 | 9.6 | 5.3 | 2.9 | 1.3 |
Vereos | 17.4 | 14.3 | 10.6 | 5.9 | 6.0 | 14.4 | 12.9 | 9.3 | 4.0 | 4.9 | 38.2 | 22.1 | 10.3 | 5.6 | 2.4 | |
710 | 17.2 | 14.6 | 14.0 | 8.4 | 4.8 | 11.5 | 12.0 | 30.7 | 8.5 | 4.5 | 39.7 | 27.1 | 12.2 | 8.4 | 1.7 | |
mCT | 18.4 | 16.6 | 10.1 | 6.5 | 3.7 | 16.6 | 12.9 | 9.5 | 5.1 | 2.9 | 55.6 | 28.7 | 10.8 | 4.3 | 1.7 | |
HRRT | 16.9 | 14.9 | 11.3 | 5.5 | 2.7 | 12.5 | 31.1 | 20.5 | 4.1 | 1.5 | 14.3 | 8.5 | 6.8 | 3.6 | 0.8 | |
2 min | Gemini TF | NA | NA | NA | NA | NA | 11.7 | 13.8 | 8.4 | 3.4 | 1.5 | 14.8 | 8.2 | 4.3 | 3.2 | 0.5 |
Vereos | 16.2 | 13.6 | 7.0 | 3.8 | 5.5 | 14.8 | 12.7 | 6.6 | 2.2 | 4.2 | 28.6 | 13.9 | 10.2 | 3.8 | 1.3 | |
710 | 14.4 | 14.9 | 8.8 | 4.9 | 1.5 | 58.8 | 17.2 | 6.8 | 4.5 | 0.0 | 27.9 | 19.1 | 6.3 | 0.9 | 0.0 | |
mCT | 18.4 | 16.5 | 10.8 | 5.1 | 6.9 | 19.6 | 13.0 | 11.1 | 3.7 | 6.9 | 32.4 | 17.7 | 10.4 | 2.6 | 5.1 | |
HRRT | 15.3 | 14.5 | 11.0 | 3.3 | 2.1 | 12.8 | 13.4 | 8.5 | 2.4 | 0.2 | 12.7 | 9.4 | 5.6 | 0.5 | 0.8 | |
1 min | Gemini TF | NA | NA | NA | NA | NA | 13.0 | 11.0 | 4.7 | 3.0 | 0.9 | 10.2 | 4.3 | 2.3 | 0.2 | 0.5 |
Vereos | 14.5 | 11.8 | 8.6 | 3.8 | 4.2 | 13.4 | 12.0 | 7.8 | 1.9 | 2.9 | 22.9 | 11.3 | 6.3 | 4.0 | 1.1 | |
710 | 14.8 | 13.3 | 10.7 | 2.0 | 2.8 | 14.0 | 13.5 | 7.2 | 1.6 | 1.1 | 18.8 | 20.2 | 10.9 | 1.8 | 0.5 | |
mCT | 17.2 | 11.4 | 9.3 | 5.3 | 1.2 | 12.4 | 10.2 | 7.4 | 4.3 | 0.5 | 25.8 | 11.9 | 8.3 | 2.7 | 0.3 | |
HRRT | 13.9 | 14.9 | 7.7 | 3.9 | 9.7 | 9.4 | 12.1 | 7.3 | 1.4 | 3.2 | 11.1 | 3.9 | 1.6 | 0.5 | 2.2 | |