A 55-year-old female patient is undergoing radiofrequency thermal ablation of her primary liver tumor. What does this treatment entail?
A) A tube is inserted into the tumor and ablation is done by superheated water.
B) A needle electrode is inserted into the tumor and heated by radiofrequency.
C) A tube is inserted into the tumor and chemotherapy is placed into the tumor.
D) A needle electrode is inserted into the tumor and killed by laser.
Ans: B
Feedback: In radiofrequency thermal ablation, a needle electrode is inserted into the liver tumor under imaging guidance. Radiofrequency energy passes through to the noninsulated needle tip, causing heat and tumor cell death from coagulation necrosis. No tube is inserted into the tumor.
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