Table 4.
Comparison of the value of color Doppler ultrasonography, CT, and serum AFP alone and in combination in the diagnosis of hepatocellular carcinoma (% (n)).
| Sensibility | Specificity | Accuracy | Positive predictive value | Negative predictive value | |
|---|---|---|---|---|---|
| Color Doppler ultrasonography | 79.59 (78/98) | 92.00 (46/50) | 83.78 (124/148) | 95.12 (78/82) | 69.70 (46/66) |
| CT | 85.71 (84/98) | 90.00 (45/50) | 87.16 (129/148) | 94.38 (84/89) | 76.27 (45/59) |
| AFP | 66.33 (65/98) | 90.00 (45/50) | 74.32 (110/148) | 92.86 (65/70) | 57.69 (45/78) |
| Combined examination | 96.94 (95/98) | 88.00 (44/50) | 93.92 (139/148) | 94.06 (95/101) | 93.62 (44/47) |
| X2 | 33.626 | 0.444 | 22.904 | 0.363 | 19.522 |
| P value | <0.001 | 0.931 | <0.001 | 0.948 | <0.001 |
Compared to single tests, p < 0.05.