Table 2.
Characteristics of malignant liver tumors in patients who underwent ablation using manual or stereotactic guidance.
| Manual | Stereotactic | p | |
|---|---|---|---|
| Lesion size | |||
| < 3 cm | 119 (87.5) | 243 (84.7) | 0.531 |
| ≥ 3 cm | 17 (12.5) | 44 (15.3) | |
| Liver segment | |||
| I | 2 (1.5) | 6 (2.1) | 0.200 |
| II | 15 (11.0) | 38 (13.2) | |
| III | 18 (13.2) | 17 (5.9) | |
| IVa | 18 (13.2) | 27 (9.4) | |
| IVb | 9 (6.6) | 17 (5.9) | |
| V | 16 (11.8) | 37 (12.9) | |
| VI | 21 (15.4) | 38 (13.2) | |
| VII | 15 (11.0) | 42 (14.6) | |
| VIII | 22 (16.2) | 65 (22.6) | |
| Subcapsular location | |||
| No | 48 (35.3) | 119 (41.5) | 0.269 |
| Yes | 88 (64.7) | 168 (58.5) | |
| Subphrenic location | |||
| No | 93 (68.4) | 223 (77.7) | 0.052 |
| Yes | 43 (31.6) | 64 (22.3) | |
| Proximity to vessel | |||
| No | 106 (77.9) | 199 (69.3) | 0.084 |
| Yes | 30 (22.1) | 88 (30.7) | |
| Primary efficacy | |||
| Incomplete | 34 (25.0) | 45 (15.7) | 0.030 |
| Complete | 102 (75.0) | 242 (84.3) | |
Subphrenic and subcapsular location are defined as a distance less than 10 mm to the diaphragm or liver capsule.
IQR interquartile range.