Table 2.
Morphological and enhancement features of ICC and HCC.
| HCC (n = 74) | ICC (n = 39) | p value* | |
|---|---|---|---|
| Shape | <0.0001† | ||
|
Round
Lobulated Irregular |
62 (83.8%) 7 (9.5%) 5 (6.8%) |
14 (35.9%) 15 (38.5%) 10 (25.6%) |
|
| Demarcation | <0.0001† | ||
|
Indistinct
Well-defined area <50% of tumor margin Well-defined area >50% of tumor margin Sharp |
4 (5.4%) 7 (9.5%) 5 (6.8%) 58 (78.4%) |
9 (23.1%) 11 (28.2%) 8 (20.5%) 11 (28.2%) |
|
| Arterial enhancement pattern | <0.0001† | ||
|
Homogeneous
Heterogeneous Peripheral rim Not enhanced |
33 (44.6%) 37 (50.0%) 4 (5.4%) 0 (0%) |
7 (18.0%) 7 (18.0%) 21 (53.8%) 4 (10.3%) |
|
| Washout | 73 (98.6%) | 8 (20.5%) | <0.0001† |
| Bile duct dilatation | 5 (6.8%) | 16 (41.0%) | <0.0001† |
| Tortuous tumoral vessels | 14 (18.9%) | 3 (7.7%) | 0.1664 |
| fECV, mean ± SD, % | 31.6 ± 9.0 | 43.8 ± 13.2 | <0.0001† |
fECV, extracellular volume fraction.
*Chi-square test or Fisher’s exact test or Welch’s t-test.
†Statistically significant.