Table 1. Time-enhancement curve characteristics comparisons of enlargement and stable groups.
| Parameter | Enlargement group n = 4 |
Stable group n = 6 |
p -Value |
|---|---|---|---|
| Arrival time (s) | 15 (13–22) | 9 (7–10) | 0.106 |
| Arrival delay time (s) | 13 (12–16) | 7 (6–10) | 0.133 |
| Time to peak enhancement (s) | 17 (14–19) | 12 (11–14) | 0.234 |
| CT peak (HU) | 192 (130–262) | 265 (227–319) | 0.352 |
| Upslope (HU/s) | 7 (7–8) | 24 (17–30) | 0.0247 |
| Upslope index | 0.21 (0.18–0.26) | 0.72 (0.49–1.04) | 0.0243 |
| EC washout (HU/s) | 1.96 (1.31–3.38) | 16.6 (14.6–21.2) | 0.019 |
| EC washout index | 0.07 (0.05–0.12) | 0.70 (0.57–0.82) | 0.019 |
| Peak to peak time (s) | 17 (16–19) | 5 (4–6) | 0.108 |
| 80% enhancement duration (s) | 14.8 (13.7–16.1) | 7.4 (6.1–7.4) | 0.0195 |
| 70% enhancement duration (s) | 20.7 (18.9–22.2) | 8.4 (8.3–8.6) | 0.0159 |
| 60% enhancement duration (s) | 29.9 (27.3–33.0) | 10.6 (10.1–11.7) | 0.0159 |
| AUC (HU × s) | 11,909 (11,642–12,117) | 12,815 (9,766–15,661) | 1 |
| CT equilibrium phase (HU) | 90 (75–103) | 27 (22–39) | 0.019 |
Abbreviations: AUC, area under curve; CT, computed tomography; EC, endoleak cavity; TEC, time-enhancement curve.
Note: all data are medians. Numbers in parentheses are the interquartile range (lower quartile[Q1]–upper quartile[Q3]).