Imaging Features on US | Training set (n = 80) | Testing set (n = 40) | P* | ||
---|---|---|---|---|---|
HAE(n = 36) | ICC(n = 44) | HAE(n = 24) | ICC(n = 16) | ||
Conventional US | |||||
Location | |||||
Right lobe | 30 (83.3) | 24 (54.5) | 20 (83.3) | 9 (56.3) | 0.252 |
Left lobe | 6 (16.7) | 20 (45.5) | 4 (16.7) | 7 (43.7) | 0.393 |
Lesion size | |||||
≤ 5.0 cm | 14 (38.9) | 17 (38.6) | 8 (33.3) | 7 (43.7) | 0.755 |
> 5.0 cm | 22 (61.1) | 27 (61.4) | 16 (66.7) | 9 (56.3) | 0.145 |
Echogenicity | |||||
Hyper or Iso | 5 (13.8) | 3 (6.8) | 5 (20.8) | 4 (25.0) | 1.000 |
Mixed | 25 (69.4) | 14 (31.8) | 18 (75.0) | 5 (31.3) | 0.271 |
Hypo | 6 (16.7) | 27 (61.4) | 1 (4.2) | 7 (43.7) | 1.000 |
Margin | |||||
Clear | 17 (47.2) | 20 (45.5) | 11 (45.8) | 8 (50.0) | 0.573 |
Unclear | 19 (52.8) | 24 (54.5) | 13 (54.2) | 8 (50.0) | 0.287 |
Bile duct dilatation | 1 (2.8) | 16 (36.4) | 1 (4.2) | 5 (31.3) | 0.462 |
Pseudocystic appearance | 9 (25.0) | 1 (2.3) | 5 (20.8) | 0 (0) | 1.000 |
Calcification | 16 (44.4) | 0 (0) | 13 (54.2) | 0 (0) | NA |
CEUS | |||||
Arterial phase | |||||
Hyper- | 23 (63.9) | 35 (79.5) | 16 (66.7) | 15 (93.8) | 0.370 |
Iso- | 5 (13.9) | 8 (18.2) | 5 (20.8) | 1 (6.3) | 0.141 |
Hypo- or Non- | 8 (22.2) | 1 (2.3) | 3 (12.5) | 0 (0) | 1.000 |
Enhancement pattern | |||||
Regular rim | 33 (91.7) | 4 (9.0) | 20 (8.3) | 2 (12.5) | 1.000 |
Irregular rim | 2 (5.6) | 22 (50.0) | 4 (16.7) | 7 (43.8) | 0.063 |
Heterogeneous | 1 (2.7) | 9 (20.5) | 0 (0) | 5 (31.2) | 1.000 |
Homogeneous | 0 (0) | 9 (20.5) | 0 (0) | 2 (12.5) | NA |
Portal phase | |||||
Hyper- | 1 (2.8) | 0 (0) | 0 (0) | 0 (0) | NA |
Iso- | 9 (25.0) | 0 (0) | 10 (41.7) | 1 (6.3) | 1.000 |
Hypo- or Non- | 26 (72.2) | 44 (100) | 14 (58.3) | 15 (93.7) | 0.3670 |
Late phase | |||||
Hyper- | 1 (2.8) | 0 (0) | 0 (0) | 0 (0) | NA |
Iso- | 7 (19.4) | 0 (0) | 9 (37.5) | 1 (6.3) | 1.000 |
Hypo- or Non- | 28 (77.8) | 44 (100) | 15 (62.5) | 15 (93.7) | 0.380 |
Enhancement duration# | 197.4 ± 138.2 | 23.7 ± 16.2 | 205.9 ± 137.6 | 19.9 ± 5.3 | |
Marked wash-out | 10 (27.8) | 32 (72.7) | 5 (20.8) | 12 (75.0) | 0.745 |