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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