Percutanous radiofrequency ablation (thermoablation, RFA) is presently a routine method not only in Western Europe and the U.S.A., but also in this country. Although the funding of this intervention is not covered by general medical insurance it has been performed at a series of hospitals from more than two years. The optimal indication for this intervention is particularly in patients with malignant tumors of the liver (primary and secondary), where the size reached 5 cm at the maximum and the number is three, five foci in case of smaller sizes. The larger the focus is the lower number can be successfully destroyed. At the presented time the literature indicates that it is possible to destroy a large solitary locus of colorectal cancer metastasis up to 8 cm in diameter and up to 9 cm large hepatocellular cancer in a cirrhotic terrain (if the nodular form is concerned). The intervention is performed less frequently in malignant tumors of the kidney, lungs and bones. In this review the authors present the present state of RFA, modern trends and describe their first experience with multipolar thermoablation of liver metastases.

        Key words: RFA, thermoablation – liver – monopolar, bipolar, multipolar – HCC – metastasis