Table 3 Test positivity criteria for progressive disease on different imaging modalities; ≤1 cm of the ablation zone (LTP) / >1 cm of the ablation zone (new intrahepatic recurrence)
ceCT | Â | Newly detectable hypodense lesion |
MRI | T1 | New focal hypo-intense lesion |
| Â | T2 | New focal hyper-intense lesion |
| Â | Contrast enhanced | Irregular peripheral enhancement pattern of a circumscribed lesion |
| Â | Diffusion weighed | Lesion with high signal intensity on b800 |
FDG PET | Â | Lesion with clearly increased focal uptake as compared to liver background |