RADIOFREQUENCY ABLATION FOR SPHERICALLY-SHAPED HEPATIC TUMORS

Yilmaz G. H., Yay U. T., TURGUT O., Tigli B., Turkoglu N. E.

ISI BILIMI VE TEKNIGI DERGISI-JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY, cilt.40, sa.1, ss.167-175, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 1
  • Basım Tarihi: 2020
  • Dergi Adı: ISI BILIMI VE TEKNIGI DERGISI-JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Compendex, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.167-175
  • Gazi Üniversitesi Adresli: Evet

Özet

The purpose of this study is to destroy spherical shape hepatic tumors using radiofrequency ablation method. Three-dimensional finite elements method has been employed. Five different radiofrequency probes for liver tissue have been used to create a spherical-shaped lesion. Investigated parameters are the electrical voltage, ablation time, geometry and number of electrodes. Results have been given as lesion volume and temperature distribution. Results have been compared with the literature results, and it is seen that present results are in good agreement with the literature results. Results show that a spherical shape hepatic tumor can be destroyed using a hybrid electrode construction consisting of four Christmas-tree and four umbrella-shaped electrodes. It is seen that approximately 20 mm-diameter of lesion can be destroyed using hybrid electrode design after eight minutes. It is hoped that hybrid electrode configuration can be used for treatment of spherical shape hepatic tumors in clinical applications.