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Comparison of RFA and MWA
| RFA | MWA | |
|---|---|---|
| Mechanism | Electric current | Electromagnetic energy |
| Heating | Nonuniform | Uniform |
| Procedure time | More | Less |
| Intratumoral Temperature | Less | More |
| Ablation zone | Unpredictable | Predictable |
| Heat sink effect | Present | Less susceptible |
| Periprocedure pain | More | Less |
| Lesion treated at one time | Single | Multiple |
| Ablation volume | Small | Large |
| Grounding pad | Present thus can lead to thermal burns | Absent |
