Table 3.
Diagnostic performance of CT and MRI for tumor characteristics and invasion
| Performance | CT | MRI | P Value |
|---|---|---|---|
| Size >5 cm | |||
| Sensitivity | 83.4 [141/169] (77.8, 89.0) | 83.4 [141/169] (77.8, 89.0) | >0.999 |
| Specificity | 96.4 [159/165] (93.5, 99.2) | 97.6 [161/165] (95.2, 99.9) | 0.155 |
| Accuracy | 89.8 [300/334] (86.6, 93.1) | 90.4 [302/334] (87.3, 93.6) | 0.617 |
| Tumor multiplicity | |||
| Sensitivity | 50.0 [21/42] (34.9, 65.1) | 66.7 [28/42] (52.4, 80.9) | 0.026 |
| Specificity | 80.1 [234/292] (75.6, 84.7) | 78.1 [228/292] (73.3, 82.8) | 0.342 |
| Accuracy | 76.4 [255/334] (71.8, 80.9) | 76.7 [256/334] (72.1, 81.2) | 0.889 |
| Vascular invasion | |||
| Sensitivity | 56.8 [104/183] (49.7, 64.0) | 73.8 [135/183] (67.4, 80.1) | <0.001 |
| Specificity | 60.3 [91/151] (52.5, 68.1) | 47.0 [71/151] (39.1, 55.0) | <0.001 |
| Accuracy | 58.4 [195/334] (53.1, 63.7) | 61.7 [206/334] (56.5, 66.9) | 0.158 |
| Visceral peritoneal invasion | |||
| Sensitivity | 57.0 [45/79] (46.0, 67.9) | 77.2 [61/79] (68.0, 86.5) | <0.001 |
| Specificity | 62.8 [160/255] (56.8, 68.7) | 45.1 [115/255] (39.0, 51.2) | <0.001 |
| Accuracy | 61.4 [205/334] (56.2, 66.6) | 52.7 [176/334] (47.3, 58.1) | 0.001 |
| Extrahepatic organ invasion | |||
| Sensitivity | 38.5 [5/13] (12.0, 64.9) | 23.1 [3/13] (0.2, 46.0) | 0.124 |
| Specificity | 94.7 [304/321] (92.3, 97.2) | 95.3 [306/321] (93.0, 97.6) | 0.683 |
| Accuracy | 92.5 [309/334] (89.7, 95.3) | 92.5 [309/334] (89.7, 95.3) | >0.999 |
Data are performance measures in percentages with numerators and denominators in square brackets and 95% confidence intervals in parentheses.