Table 2.
Univariate analysis of different predetermined 3D safety margins as possible risk factors for LTP.
| Predetermined SM (mm) | Assessment with Ablation-fitTM | p value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 100% SM | 95–100% SM | 90–95% SM | < 90% SM | Residual tumor | |||||||
| Total (LTP) | % | Total (LTP) | % | Total (LTP) | % | Total (LTP) | % | Total (LTP) | % | ||
| 10 | 8 (0) | 0 | 7 (0) | 0 | 16 (0) | 0 | 43 (7) | 16.3 | 2 (2) | 100 | < 0.001 |
| 9 | 9 (0) | 0 | 11 (0) | 0 | 14 (0) | 0 | 40 (7) | 17.5 | 2 (2) | 100 | < 0.001 |
| 8 | 13 (0) | 0 | 10 (0) | 0 | 20 (0) | 0 | 31 (7) | 22.6 | 2 (2) | 100 | < 0.001 |
| 7 | 14 (0) | 0 | 14 (0) | 0 | 20 (0) | 0 | 26 (7) | 26.9 | 2 (2) | 100 | < 0.001 |
| 6 | 18 (0) | 0 | 19 (0) | 0 | 20 (0) | 0 | 17 (7) | 41.2 | 2 (2) | 100 | < 0.001 |
| 5 | 34 (0) | 0 | 11 (0) | 0 | 18 (1) | 55.5 | 11 (6) | 54.5 | 2 (2) | 100 | < 0.001 |
| 4 | 43 (0) | 0 | 16 (1) | 6.3 | 10 (1) | 10 | 5 (5) | 100 | 2 (2) | 100 | < 0.001 |
| 3 | 55 (0) | 0 | 13 (2) | 15.4 | 3 (2) | 66.7 | 3 (3) | 100 | 2 (2) | 100 | < 0.001 |
| 2 | 70 (5) | 7.1 | 2 (0) | 0 | 2 (2) | 100 | - | - | 2 (2) | 100 | < 0.001 |
| 1 | 73 (6) | 8.2 | 1 (1) | 100 | - | - | - | - | 2 (2) | 100 | < 0.001 |
Significant values (p ≤ 0.05) are italicized
SM, safety margin