Table 2.
Enhancement in liver segments for the weight groups.
| Enhancement | Group ≤ 70 kg | Group 70–90 kg | Group ≥ 90 kg | Total | p-Value |
|---|---|---|---|---|---|
| S2 blanco | 60.5 (±5.77) | 56.7 (±5.02) | 53.6 (±6.30) | 56.8 (±5.83) | 0.000 |
| S2 PV | 120.6 (±11.6) | 109.8 (±11.7) | 105.7 (±9.86) | 111.1 (±12.3) | 0.000 |
| S2 SD | 9.57 (±1.43) | 11.1 (±1.89) | 12.1 (±1.91) | 11.0 (±1.92) | 0.000 |
| Δ S2 | 60.0 (±10.6) | 53.1 (±10.7) | 52.1 (±6.73) | 54.3 (±10.3) | 0.014 |
| S8 blanco | 60.7 (±5.24) | 55.7 (±5.84) | 51.0 (±6.61) | 55.7 (±6.61) | 0.000 |
| S8 PV | 120.9 (±14.2) | 109.2 (±10.9) | 104.4 (±9.52) | 110.5 (±12.5) | 0.000 |
| S8 SD | 9.19 (±0.981) | 10.2 (±1.47) | 11.2 (±2.18) | 10.3 (±1.75) | 0.000 |
| Δ S8 | 60.1 (±12.6) | 53.5 (±10.8) | 53.4 (±8.18) | 54.8 (±10.9) | 0.043 |
| S7 blanco | 59.5 (±5.56) | 54.5 (±5.35) | 50.8 (±6.82) | 54.7 (±6.32) | 0.000 |
| S7 PV | 118.7 (±10.8) | 107.8 (±10.1) | 103.1 (±8.34) | 109.0 (±11.1) | 0.000 |
| S7 SD | 9.29 (±1.10) | 10.6 (±1.70) | 12.2 (±2.35) | 10.7 (±2.09) | 0.000 |
| Δ S7 | 60.1 (±12.6) | 53.3 (±9.25) | 52.4 (±7.45) | 54.3 (±9.30) | 0.022 |
| Δ S2 Δ S8 Δ S7 | 0.667 | 0.939 | 0.520 | 0.114 | |
| Mean Δ | 60.7 (±12.4) | 53.3 (±9.75) | 52.6 (±6.63) | 54.6 (±10.2) | 0.007 * |
| Mean (± SD) |
Enhancement values for the liver segments S2, S8, and S7 for the different weight groups. Values are given as means with ± SDs; p-values are calculated using a one-way ANOVA or repeated measures ANOVA. The blanco scans are non-enhanced scans, PV scans are scans made in the portal venous phase, the SD is given for the mean region of interest (ROI) SD, and lastly the mean enhancement is given; ΔS2 ΔS8 ΔS7 is the significance of enhancement between the three liver segments. The mean enhancement (mean ΔHU) is the average of ΔS2 ΔS8 ΔS7. Note: * Post hoc analysis showed a significant difference between ≤70 kg and 70–90 kg weight categories and between ≤70 kg and ≥90 kg weight categories.