UDK: 616.36:615.849

RADIO FREQUENCY ABLATION OF THE LIVER. AN EXPERIMENTAL VERIFICATION OF TECHNICAL PARAMETERS OF THE PROCEDURE

A. G. Beburishvily, E. N. Zubina, E. G . Spiridonov, V. V. Yatsishen, P. V. Mozgovoi, O. U. Evsiukov, E. S. Aleinikova

Волгоградский государственный медицинский университет, Волгоградский государственный университет

Abstract

Radio Frequency ablation of the liver is one of the components of loco-regional therapy including an integrated effect on the tumor; it is recommended by the World Health Organization in management of hepatocellular carcinoma and metastatic lesion of the liver. To determine the working mode and definitive characteristics of the radio frequency impact on the tissue with an experimental use of Cool-tip RF Ablation System generator we examined some parameters of the generator function. Input characteristics include: Power (W), Electric current (I), Electric impedance (Z), Temperature of cooling liquid (T of the liquid),exposure time. Output characteristics are: Temperature, Geometric specification, Histologic specification. The mode and condition of the work of the generator were determined in order to get the maximum values of the cross-section area and volume of tissues of the ablation field with a maximum tissue damage both in the center and at the periphery of the focus. Practical recommendations for the use of a specific model of RFA generator are offered.

Keywords

radio frequency ablation, hepatocellular carcinoma, secondary metastasis of liver, loco regional therapy.

Contacts

Спиридонов Евгений Геннадиевич — к. м. н., асс. кафедры факультетской хирургии с курсом эндоскопии и эндоскопической хирургии ФУВ и с курсом сердечно-сосудистой хирургии ФУВ, Волгоградский государственный медицинский университет, e-mail: seg-s@mail.ru