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Potential risk factors for insufficient treatment outcomes following RFA
| Risk factor | Strategies to overcome |
|---|---|
| Morphometric variable | |
| Tumor size | Liver transplantation |
| Tumor number | Surgical resection |
| Technical feasibility | |
| Subcapsular area, near adjacent organ | Artificial ascites |
| Near major vessel or bile duct | Microwave ablation |
| Unable to detect B-mode ultrasound | C-EUS, fusion imaging |
| Microvascular invasion | Surgical resection |
RFA, radiofrequency ablation; C-EUS, contras-enhanced ultrasound.
