Table 2:
Characteristics of Correctly Identified Ablation Site
| All N=59 |
Correctly Class. n=44 |
Incorrect Class. n=15 |
p-value | |
|---|---|---|---|---|
| Viable, n (%) | 23 (39) | 8 (18) | 15 (100) | <0.001 |
| Non-viable, n (%) | 36 (61) | 36 (82) | 0 | |
| ŧLocation | ||||
| II/III | 12 (20) | 10 (23) | 2 (13) | 0.31 |
| IVA/IVB | 5 (9) | 3 (7) | 2 (13) | |
| V/VI | 16 (27) | 14 (32) | 2 (13) | |
| VII/VIII | 26 (44) | 17 (39) | 9 (60) | |
| Year of Ablation, n (%) | ||||
| 2006–2010 | 12 (20.3) | 7 (15.91) | 5 (33.3) | 0.35 |
| 2011–2013 | 29 (49.2) | 23 (52.3) | 6 (40.0) | |
| 2014–2017 | 18 (30.5) | 14 (31.8) | 4 (26.7) | |
| Type of Ablation | ||||
| RFA | 4 (7) | 3 (7) | 1 (7) | 0.98 |
| MWA | 55 (93) | 41 (93) | 14 (93) | |
| Pathfinder | ||||
| Yes | 33 (56) | 26 (59) | 7 (47) | 0.40 |
| No | 26 (44) | 18 (41) | 8 (53) | |
| Number of MRIs Prior to LT, mean (SD) | 2.3 (1.5) | 2.1 (0.6) | 1.5 (0.5) | <0.01 |
| 1 image, n (%) | 13 (29) | 6 (14) | 7 (47) | 0.02 |
| 2 images, n (%) | 19 (42) | 16 (36) | 6 (40) | |
| 3 images, n (%) | 8 (18) | 14 (32) | 2 (13) | |
| ≥ 4 images, n (%) | 5 (11) | 8 (18) | 0 | |
| Size, mean (SD) | 2.2 (1.4) | 2.4 (0.3) | 2.1 (1.7) | 0.58 |
| <1 cm, n (%) | 5 (22) | 0 | 5 (33) | 0.09 |
| 1 cm - 2 cm, n(%) | 7 (30) | 3 (38) | 4 (27) | ref. |
| > 2 cm, n (%) | 11 (48) | 5 (62) | 6 (40) | 0.91 |
| Differentiation | ||||
| Well, n (%) | 3 (13) | 0 | 3 (20) | 0.38 |
| Moderate, n (%) | 18 (78) | 7 (87) | 11 (73) | |
| Poor, n (%) | 2 (9) | 1 (13) | 1 (7) | |
| LVI, n (%) | 3 (13) | 1 (13) | 2 (13) | 0.96 |
| PNI, n (%) | 0 | 0 | 0 | - |
ŧ
Location is based on Couinaud classification of hepatic segments; RFA - radiofrequency ablation; MWA - microwave ablation; Pathfinder - Pathfinder Navigation Guidance; LT - Liver transplant; SD - standard deviation; LVI - lymphovascular invasion; PNI - perineural invasion