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Indexed by:会议论文

Date of Publication:2018-03-26

Page Number:8496461-8496461

Abstract:In biomedical engineering, radio-frequency(RF) ablation therapy is a widely utilized technique. As the size and shape of lesions during RF catheter ablation is dependent on the temperature reached in muscular tissue, a computer model for heat transfer during the process can prove to be quite beneficial in improving the accuracy of the therapy procedure. In this work, a finite element analysis based calculation is performed to determine the joule heating induced temperature increase in endocardial tissue subjected to ablation with stainless steel electrode for 50 s. The discontinuous interface between the muscle and electrode has been represented by a heat gap boundary condition. For a root mean square voltage drop of 15.1 V, the peak temperature attained in the tissue at the vicinity of electrode tip is obtained as 57.98 °C. © 2018 IEEE.