Table 2.
PET/CT Parameter Comparison: Prone Versus Supine
| Mean Prone | Mean Supine | Mean difference | Wilcoxon Test | Spearman Correlation(p value) | |
|---|---|---|---|---|---|
| (±SD) | (±SD) | (±SD) | |||
| Absolute Metrics | |||||
| SUVmax | 8.21 (±6.97) | 9.78 (±8.54) | −1.57 (±2.08) | P < .001 | 0.985 (<0.001) |
| SUVpeak | 6.68 (±5.81) | 7.95 (±7.03) | −1.27 (±1.54) | P < .001 | 0.991 (<0.001) |
| SULmax | 5.15 (±4.16) | 6.11 (±5.01) | −0.96 (±1.23) | P < .001 | 0.986 (<0.001) |
| SULpeak | 4.19 (±3.49) | 4.96 (±4.16) | −0.78 (±0.91) | P < .001 | 0.989 (<0.001) |
| PERCIST Measurements | |||||
| SUVmax | −0.53 (±0.34) | −0.54 (±0.34) | 0.00 (±0.13) | P = .639 | 0.911 (<0.001) |
| SUVpeak | −0.52 (±0.36) | −0.53 (±0.34) | 0.02 (±0.13) | P = .848 | 0.931 (<0.001) |
| SULmax | −0.54 (±0.34) | −0.54 (±0.33) | 0.00 (±0.13) | P = .609 | 0.916 (<0.001) |
| SULpeak | −0.52 (±0.36) | −0.54 (±0.33) | 0.02 (±0.13) | P = .831 | 0.930 (<0.001) |
SD: standard deviation; means include all time points with corresponding prone and supine data; mean difference is prone − supine.