Table 5 TPF (sensitivity) and The FPF (1 – specificity) for all possible cut points and protocols
Cut point | A. 120 kVp | B. 80 kVp | C. 80 kVp | |||
|---|---|---|---|---|---|---|
TPF (1-FNF) | FPF (1-TNF) | TPF (1-FNF) | FPF (1-TNF) | TPF (1-FNF) | FPF (1-TNF) | |
0-1 | 0.678 | 0.372 | 0.731 | 0.357 | 0.766 | 0.287 |
1-2 | 0.608 | 0.271 | 0.708 | 0.209 | 0.743 | 0.163 |
2-3 | 0.421 | 0.109 | 0.614 | 0.031 | 0.655 | 0.016 |
3-4 | 0.211 | 0.000 | 0.462 | 0.000 | 0.532 | 0.000 |
Cut point | A*. 120 kVp | B*. 80 kVp | C*. 80 kVp | |||
TPF (1-FNF) | FPF (1-TNF) | TPF (1-FNF) | FPF (1-TNF) | TPF (1-FNF) | FPF (1-TNF) | |
0-1 | 0.608 | 0.326 | 0.655 | 0.132 | 0.749 | 0.178 |
1-2 | 0.561 | 0.194 | 0.655 | 0.078 | 0.737 | 0.109 |
2-3 | 0.433 | 0.085 | 0.596 | 0.000 | 0.673 | 0.000 |
3-4 | 0.298 | 0.000 | 0.509 | 0.000 | 0.591 | 0.000 |