Table 1.
Variation in kinetic parameters as calculated from 2 baseline DCE-CT scans
| Double baseline DCE-CT (patient 4) | ||||||
|---|---|---|---|---|---|---|
| ROI | Ktrans (L/min) | Ktrans (% error) | ve (L/min) | ve (% error) | AUC (HU/s) | AUC (% error) |
| Tumor 4A | 0.310 ± 0.032 | 10.23 | 0.26 ± 0.03 | 12.03 | 14,777 ± 1491 | 10.09 |
| Tumor 4B | 0.509 ± 0.012 | 2.45 | 0.26 ± 0.01 | 5.21 | 15,472 ± 2995 | 19.36 |
| Tumor 4C | 0.329 ± 0.020 | 6.09 | 0.22 ± 0.05 | 21.72 | 12,498 ± 465 | 3.72 |
| Liver control | 0.309 ± 0.013 | 4.12 | 0.22 ± 0.02 | 9.92 | 12,425 ± 1544 | 12.43 |
| Mean | 5.72 | 11.40 | 12.22 | |||
AUC, area under the curve; DCE-CT, dynamic contrast-enhance computed tomography; HU, Hounsfield units; Ktrans, kinetic parameters of perfusion; ve, extracellular volume.