Images of Thermal Radiofrequency Ablation (RFA) of Liver Tumors
1. RFA electrode
2. Tumor in liver
3. Thermal ablation in progress
4. Complete tumor destruction
RFA electrode tip
Diagram of RFA procedure
Power is applied until tissue impedance (resistance to electrical current) rises.
Generator detects impedance rise indicating tumor destruction and signals completion of procedure.
Early CT scan follow-up showing post-RFA changes for treated metastatic colon cancer to the liver
Pre-op CT scan: Tumor is circled
Three months post-RFA: Post-ablation changes
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