Table 2 The SNR, SUVmax, and TBR of different acquisition durations images with Gaussian and deep learning filter
Parameter | Gaussian filter | Deep learning filter | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
10S | 20S | 30S | 60S | 120S | 300S | 10S | 20S | 30S | 60S | 120S | |
SNR | |||||||||||
Liver | 3.3 ± 0.7 | 4.6 ± 1.0 | 5.6 ± 1.2 | 8 ± 1.9 | 11.1 ± 3.3 | 17.0 ± 4.4 | 8.4 ± 4.0 | 14.7 ± 6.2 | 18.7 ± 6.7 | 26.4 ± 8.1 | 32.8 ± 9.2 |
Aorta | 3.7 ± 0.9 | 5.1 ± 1.2 | 6.2 ± 1.5 | 8.6 ± 2.2 | 11.9 ± 3.7 | 18.8 ± 6.9 | 11.0 ± 5.2 | 16.7 ± 6.9 | 19.4 ± 7.3 | 24.6 ± 7.5 | 30.5 ± 12.5 |
SUVmax | |||||||||||
Lesion of CRCs | 26.1 ± 14.8 | 24.0 ± 14.0 | 23.4 ± 13.9 | 22.8 ± 14.5 | 22.3 ± 14.8 | 21.6 ± 13.9 | 21.7 ± 13.4 | 20.4 ± 13.1 | 19.9 ± 12.9 | 19.5 ± 13.3 | 19.1 ± 13.4 |
Liver metastases | 10.3 ± 6.0 | 9.6 ± 5.9 | 9.4 ± 5.8 | 8.8 ± 5.3 | 8.5 ± 5.1 | 8.4 ± 5.2 | 8.3 ± 5.2 | 7.8 ± 5.2 | 7.6 ± 5.0 | 7.3 ± 4.9 | 7.2 ± 4.9 |
TBR | |||||||||||
Lesion of CRCs | 10.5 ± 5.3 | 9.7 ± 5.0 | 9.4 ± 4.9 | 9.2 ± 5.1 | 9.0 ± 5.2 | 8.8 ± 4.9 | 8.7 ± 4.5 | 8.2 ± 4.6 | 8.1 ± 4.5 | 7.9 ± 4.6 | 7.8 ± 4.7 |
Liver metastases | 4.5 ± 2.7 | 4.2 ± 2.6 | 3.9 ± 2.3 | 3.8 ± 2.3 | 3.7 ± 2.2 | 3.7 ± 2.2 | 3.6 ± 2.3 | 3.9 ± 2.2 | 3.3 ± 2.2 | 3.2 ± 2.1 | 3.2 ± 2.1 |
TAR | 6.5 ± 4.1 | 6.9 ± 4.4 | 6.9 ± 4.2 | 7.1 ± 4.1 | 7.1 ± 4.2 | 7.5 ± 4.4 | 7.4 ± 4.9 | 7.5 ± 5.0 | 7.4 ± 5.0 | 7.2 ± 4.7 | 7.1 ± 4.6 |