Table 5. Predictive performance of CT features.
| Variables | AUC (95% CI) | Sensitivity (95% CI) | Specificity (95% CI) | P value | Cut-off value |
|---|---|---|---|---|---|
| Borders | 0.583 (0.511–0.653) | 43.1% (30.2–56.8%) | 73.6% (65.5–80.7%) | 0.027 | – |
| Enhancement patterns | 0.609 (0.537–0.677) | 89.7% (78.8–96.1%) | 32.1% (24.5–40.6%) | 0.0001 | – |
| Air density in mass | 0.652 (0.581–0.718) | 39.7% (27.0–53.4%) | 90.7% (84.6–90.7%) | <0.0001 | – |
| Ulceration | 0.646 (0.575–0.712) | 44.8% (31.7–58.5%) | 84.3% (77.2–89.9%) | 0.0001 | – |
| EVFDM | 0.655 (0.585–0.721) | 89.7% (78.8–96.1%) | 41.4% (33.2–50.1%) | <0.0001 | – |
| Necrosis | 0.802 (0.740–0.855) | 69.0% (55.5–80.5%) | 91.4% (85.5–95.5%) | <0.0001 | – |
| Cystic degeneration | 0.563 (0.491–0.633) | 15.5% (7.3–27.4%) | 97.1% (92.8–99.2%) | 0.011 | – |
| Hemorrhage | 0.565 (0.493–0.635) | 17.2% (8.6–29.4%) | 95.7% (90.9–98.4%) | 0.014 | – |
| HYOM | 0.773 (0.709–0.830) | 89.7% (78.8–96.1%) | 65.0% (56.5–72.9%) | <0.0001 | – |
| Adjacent organ invasion | 0.647 (0.576–0.713) | 29.3% (18.1–42.7%) | 100.0% (97.4–100.0%) | <0.0001 | – |
| Lymphadenopathy | 0.539 (0.467–0.610) | 12.1% (5.0–23.3%) | 95.7% (90.9–98.4%) | 0.094 | – |
| Metastasis | 0.534 (0.462–0.606) | 6.9% (1.9–16.7%) | 100.0% (97.4–100.0%) | 0.039 | – |
| Peritonitis | 0.570 (0.498–0.640) | 15.5% (7.3–27.4%) | 98.6% (94.9–99.8%) | 0.004 | – |
| Ascites | 0.610 (0.538–0.678) | 24.1% (13.9–37.2%) | 97.7% (93.9–99.6%) | 0.0001 | – |
| Rupture | 0.639 (0.568–0.706) | 29.3% (18.1–42.7%) | 98.6% (94.9–99.8%) | <0.0001 | – |
| LD (mm) | 0.705 (0.637–0.768) | 86.2% (74.6–93.9%) | 50.0% (41.4–58.6%) | <0.0001 | >38 |
| SD (mm) | 0.684 (0.614–0.748) | 75.9% (62.8–82.1%) | 57.9% (49.2–66.1%) | <0.0001 | >36 |
| LD/SD | 0.576 (0.504–0.645) | 43.1% (30.2–56.8%) | 73.6% (65.5–80.7%) | 0.105 | >1.33 |
| Tp (HU) | 0.639 (0.568–0.706) | 65.5% (51.9–77.5%) | 60.7% (52.1–68.9%) | 0.001 | ≤32 |
| Necrosis degree (%) | 0.795 (0.732–0.849) | 69.0% (55.5–80.5%) | 92.1% (86.3–96.0%) | <0.0001 | >0 |
| Wall thickness of necrosis (mm) | 0.838 (0.627–0.975) | 76.9% (46.2–95.0%) | 80.0% (44.4–97.5%) | 0.0002 | >4 |
| Diameter of EVFDM (mm) | 0.656 (0.586–0.722) | 89.7% (78.8–96.1%) | 41.4% (33.2–50.1%) | 0.0001 | >0 |
AUC, area under the curve; CI, confidential interval; EVFDM, enlarged vasculature feeding or draining the mass; HYOM, hyperenhancement of the overlying mucosa; LD, long diameter; SD, short diameter; Tp, tumor attenuation in plain phase.