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Technical possibilities of creating thermal fields of various configurations using bipolar multi-electrode systems

The existing radiofrequency electrode-heating systems are unsuitable for the treatment of large-diameter tumors due to insufficient heating volume. It is proposed to solve this problem by increasing the number of electrodes and implementing a bipolar mode of operation. The aim of the work was to dev...

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Bibliographic Details
Main Authors: Makarov, V. N., Boos, N. A.
Format: Conference Proceeding
Language:English
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Summary:The existing radiofrequency electrode-heating systems are unsuitable for the treatment of large-diameter tumors due to insufficient heating volume. It is proposed to solve this problem by increasing the number of electrodes and implementing a bipolar mode of operation. The aim of the work was to develop designs for multi-electrode heating systems to create the required thermal fields. For this, mathematical calculations of possible configurations of heating systems were carried out in the COMSOL Multiphysics software environment, after which tests were carried out on a biological tissue simulator. It was found that, depending on the method of connecting the electrode system to the generator, the shape of the thermal field was either cylindrical or rectangular. Established that with the use of new multi-electrode systems, it is possible to create large-volume thermal fields in no more than 15 minutes. The developed systems are intended for implementation in the field of treatment of head and neck tumors.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0125031