TABLE 3.
Diagnostic Agreement of 68Ga-FAPI Uptake Cutoff Values with Favorable Pathologic Response of Primary Tumor
| Variable | pCR | Concentric withdrawal | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | κ-index | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | κ-index | |
| ΔSUVmax1 | 75 | 92.9 | 85.7 | 86.7 | 0.697 | 83.3 | 70 | 76.9 | 77.8 | 0.538 |
| SUVmax2 | 100 | 88.2 | 71.4 | 100 | 0.773 | 76.5 | 100 | 100 | 55.6 | 0.596 |
| ΔSUVmax2 | 87.5 | 100 | 100 | 93.3 | 0.899 | 100 | 64.3 | 61.5 | 100 | 0.567 |
| SUVmax3 | 87.5 | 100 | 100 | 93.3 | 0.899 | 91.7 | 80 | 84.6 | 88.9 | 0.723 |
| TBR2 | 85.7 | 80 | 66.7 | 92.3 | 0.611 | 76.9 | 77.8 | 83.3 | 70 | 0.538 |
| TBR3 | 100 | 93.3 | 85.7 | 100 | 0.899 | 76.9 | 88.9 | 90.9 | 72.7 | 0.636 |
PPV = positive predictive value; NPV = negative predictive value.