Table 3.
Comparison of frequency of imaging features among groups of observations
| Characteristics | HCC (n = 368) | Non-HCC (n = 64) |
|---|---|---|
| Echogenicity (hyper, hypo) | 100:268 | 47:17 |
| Tumor size (cm) | 4.1 (2.7–6.5) | 4.7 (2.5–7.6) |
| Blood flow signal (yes, no) | 270 (73.4) | 40 (62.5) |
| Arterial phase | ||
| No APHE | 1 (0.3) | 2 (3.1) |
| APHE | 367 (99.7) | 62 (96.9) |
| Non-rim APHE | 367 (99.7) | 46 (71.9) |
| Rim APHE | 0 (0) | 16 (25.0) |
| Portal venous or late phase | ||
| No washout | 44 (12.0) | 28 (43.8) |
| Washout | 324 (88.0) | 36 (56.3) |
| Early washout (< 60 s) | 37 (10.1) | 28 (43.8) |
| Late-onset washout (≥ 60 s) | 287 (78.9) | 8 (12.5) |
| Late and mild washout (≥ 60 s) | 287 (78.9) | 4 (6.3) |
| Marked washout (< 2 min) | 0 (0) | 4 (6.3) |
| Kupffer phase | ||
| Presence of Kupffer defect | 360 (97.8) | 37 (57.8) |
APHE arterial phase hyperenhancement