Table 3.
Immunostaining performances of PSMA, Glypican 3, HSP70, and GS alone or in combination for diagnosing HCC in small nodules (≤2 cm).
| Markers | Minimum positive markers required | Test cohort (n = 287) |
Validation cohort (n = 106) |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Se | Spe | PPV | NPV | Accuracy | Se | Spe | PPV | NPV | Accuracy | ||
| PSMA | 1 | 0.77 | 0.85 | 0.75 | 0.86 | 0.82 | 0.92 | 0.77 | 0.54 | 0.97 | 0.80 |
| Glypican 3 | 1 | 0.40 | 0.98 | 0.91 | 0.73 | 0.76 | 0.38 | 0.99 | 0.90 | 0.84 | 0.85 |
| HSP70 | 1 | 0.42 | 0.93 | 0.78 | 0.73 | 0.74 | 0.67 | 0.54 | 0.30 | 0.85 | 0.57 |
| GS | 1 | 0.21 | 0.99 | 0.96 | 0.68 | 0.70 | 0.33 | 1 | 1 | 0.84 | 0.85 |
| Glypican 3, HSP70, GS | 2 | 0.30 | 0.99 | 0.94 | 0.70 | 0.73 | 0.38 | 0.99 | 0.90 | 0.84 | 0.85 |
| PSMA, Glypican 3, HSP70, GS | 2 | 0.57 | 0.99 | 0.97 | 0.79 | 0.83 | 0.79 | 0.87 | 0.63 | 0.93 | 0.85 |
Best performance for each metric is highlighted in bold. GS, glutamine synthetase; HSP70, heat shock protein 70; NPV, negative predictive value; PPV, positive predictive value; PSMA, prostate-specific membrane antigen; Se, sensitivity; Spe, specificity.