Table 1. Statistical data for sensitivity, specificity, and accuracy of PCI-CT in the detection of bile duct, portal vein, hepatic vein, and ductular proliferation.
| Prevalence* | Sensitivity (%)† | Specificity (%)† | Accuracy (%)† | k Value | |
|---|---|---|---|---|---|
| Bile duct | 153 (85) | 94.1 (89.1,97.3) | 92.6 (75.7,99.1) | 93.9(90.4,97.4) | 0.78 |
| Portal vein | 128 (71.1) | 97.7 (93.3,99.5) | 84.6 (71.9,93.1) | 93.9(90.4,97.4) | 0.85 |
| Hepatic vein | 132 (73.3) | 97.7 (93.5,99.5) | 81.3 (67.4,91.1) | 92.8(89.0,96.6) | 0.82 |
| Ductular proliferation | 45 (25) | 93.3 (81.7,98.6) | 99.3 (95.9,99.9) | 98.3(96.5,99.9) | 0.94 |
Note: Data are based on 180 ROIs. For all comparisons, P was less than 0.001.
*Prevalence was determined according to histological findings. Data are numbers of ROIs. Numbers in parentheses are percentages.
†Numbers in parentheses are the 95% confidence intervals.