Table 2 Diagnostic performance of the two different methods for computing tumour-to-nipple-areola complex distance at different cut-off values
Parameters | Automatic | Manual | p value | ||||||
|---|---|---|---|---|---|---|---|---|---|
Best (≤ 30 mm) | ≤ 5 mm | ≤ 10 mm | ≤ 20 mm | Best (≤ 21 mm) | ≤ 5 mm | ≤ 10 mm | ≤ 20 mm | ||
Sensitivity (%) | 78.3 | 8.7 | 26.1 | 34.8 | 73.9 | 43.5 | 43.5 | 73.9 | 0.537 |
Specificity (%) | 71.4 | 100.0 | 100.0 | 85.7 | 61.2 | 95.9 | 85.7 | 61.2 | 0.197 |
PPV (%) | 56.3 | 100. | 100.0 | 53.3 | 47.2 | 83.3 | 58.8 | 47.2 | 0.276 |
NPV (%) | 87.5 | 70.0 | 74.3 | 73.7 | 83.3 | 78.3 | 76.4 | 83.3 | 0.477 |
Accuracy (%) | 73.6 | 70.8 | 76.4 | 69.5 | 65.3 | 79.2 | 72.2 | 65.3 | 0.281 |