Table 1b.
Comparisons of radiological features in the training and validation sets.
| Characteristic | Training set (N = 133) | Validation set (N = 57) | Pinter | ||||
|---|---|---|---|---|---|---|---|
| ER (N = 56) | non-ER (N = 77) | Pintra | ER (N = 24) | non-ER (N = 33) | Pintra | ||
| Tumor size (cm), mean (range) |
3.15 (2.70, 4.10) | 3.00 (2.27, 4.00) | 0.219 | 3.60 (2.95, 4.50) | 3.10 (2.30, 4.05) | 0.089 | 0.288 |
| Cirrhosis, no. (%) | 0.011 | 0.001 | 0.922 | ||||
| Present | 42 (75.00%) | 41 (53.25%) | 21 (87.50%) | 15 (45.45%) | |||
| Absent | 14 (25.00%) | 36 (46.75%) | 3 (12.50%) | 18 (54.55%) | |||
| Intratumoral fat, no. (%) | 0.234 | 0.838 | 0.664 | ||||
| Present | 6 (10.71%) | 14 (18.18%) | 5 (20.83%) | 5 (15.15%) | |||
| Absent | 50 (89.29%) | 63 (81.82%) | 19 (79.17%) | 28 (84.85%) | |||
| Lesion location, no. (%) | 0.337 | 0.085 | 0.181 | ||||
| Left lobe | 8 (14.29%) | 20 (25.97%) | 2 (8.33%) | 7 (21.21%) | |||
| Right lobe | 44 (78.57%) | 53 (68.83%) | 22 (91.67%) | 22 (66.67%) | |||
| Left and right lobes | 1 (1.79%) | 2 (2.60%) | 0 (0.00%) | 4 (12.12%) | |||
| Caudate lobe | 3 (5.36%) | 2 (2.60%) | 0 (0.00%) | 0 (0.00%) | |||
| Shape, no. (%) | 0.753 | 0.426 | 0.727 | ||||
| Regular | 29 (51.79%) | 42 (54.55%) | 12 (50.00%) | 20 (60.61%) | |||
| Irregular | 27 (48.21%) | 35 (45.45%) | 12 (50.00%) | 13 (39.39%) | |||
| Radiological capsule | 0.753 | 0.93 | 0.498 | ||||
| Complete | 32 (57.14%) | 45 (58.44%) | 15 (62.50%) | 21 (63.64%) | |||
| Absence or incomplete | 24 (42.86%) | 32 (41.56%) | 9 (37.50%) | 12 (36.36%) | |||
| Lesion margin, no. (%) | 0.007 | 0.929 | 0.352 | ||||
| Smooth | 35 (62.50%) | 64 (83.12%) | 20 (83.33%) | 26 (78.79%) | |||
| Non-smooth | 21 (37.50%) | 13 (16.88%) | 4 (16.67%) | 7 (21.21%) | |||
| DWI intensity, no. (%) | 0.494 | 0.919 | 0.79 | ||||
| Hyperintense | 47 (83.93%) | 65 (84.42%) | 21 (87.50%) | 28 (84.85%) | |||
| Slightly hyperintense | 9 (16.07%) | 12 (15.58%) | 3 (12.50%) | 5 (15.15%) | |||
| Enhancement pattern, no. (%) | 0.046 | 0.181 | 0.432 | ||||
| Wash in and wash out | 42 (75.00%) | 57 (74.03%) | 22 (91.67%) | 24 (72.73%) | |||
| Gradual enhancement | 4 (7.14%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | |||
| Persistent enhancement | 3 (5.36%) | 11 (14.29%) | 1 (4.17%) | 2 (6.06%) | |||
| No or minimal enhancement | 7 (12.50%) | 9 (11.69%) | 1 (4.17%) | 7 (21.21%) | |||
| Arterial peritumoral enhancement, no. (%) | 0.037 | 0.204 | 0.606 | ||||
| Present | 9 (16.07%) | 4 (5.19%) | 5 (20.83%) | 2 (6.06%) | |||
| Absent | 47 (83.93%) | 73 (94.81%) | 19 (79.17%) | 31 (93.94%) | |||
PIntra indicates whether significant differences exist between the two groups. PInter represents whether significant differences exist between the two sets.
AFP, alpha-fetoprotein; ALT, alanine transaminase; AST, aspartate aminotransferase; LDH, lactate dehydrogenase; GGT, gamma-glutamyl transpeptidase; TBIL, total bilirubin; DBIL, direct bilirubin; IBIL, indirect bilirubin; TP, total protein; ALB, albumin; G, globulin; PLT, platelets; PT, prothrombin time; MVI, microvascular invasion; ER, early recurrence; IQR, interquartile range.