Table 2 Parameters of CT, FDG PET/CT, and 4DST PET/CT
Modality | Parameter | Baseline (n = 22) | Baseline (n = 18) | Interim CT or PET (n = 18) | p value |
|---|---|---|---|---|---|
CT | Sum of uni-dimensional measurements of target lesion (cm) | 71.9 ± 33.7 | 71.5 ± 28.7 | 61.5 ± 28.7 | 0.24 |
FDG | Highest SUVmax | 12.8 ± 5.0 | 13.7 ± 5.0 | 11.1 ± 7.0 | 0.36 |
Sum of SUVmax | 35.2 ± 33.4 | 40.5 ± 34.8 | 29.0 ± 29.9 | 0.29 | |
MTV | 101.6 ± 106.3 | 115.0 ± 112.5 | 77.7 ± 87.6 | 0.35 | |
TLG | 618.1 ± 787.8 | 717.7 ± 838.4 | 408.1 ± 517.9 | 0.26 | |
SUL | 8.9 ± 4.3 | 9.5 ± 4.4 | 7.5 ± 4.4 | 0.14 | |
Mean SUL of liver | 1.8 ± 0.3 | 1.8 ± 0.3 | 2.0 ± 0.3 | 0.38 | |
SD of mean SUL of liver | 0.2 ± 0.05 | 0.2 ± 0.05 | 0.2 ± 0.03 | 0.16 | |
4DST | Highest SUVmax | 6.6 ± 2.6 | 6.1 ± 2.6 | 6.0 ± 2.7 | 0.73 |
Sum of SUVmax | 19.6 ± 16.6 | 20.9 ± 17.8 | 19.7 ± 20.0 | 0.38 | |
MTV | 145.9 ± 268.5 | 161.9 ± 286.3 | 80.6 ± 86.1 | 0.33 | |
TLP | 507.6 ± 1107.3 | 553.9 ± 1187.1 | 232.6 ± 235.5 | 0.42 |