Güven Hasret YILMAZ
(Gazi Üniversitesi, Mühendislik Fakültesi, Makina Mühendisliği,Ankara,Türkiye)
Oğuz TURGUT
(Gazi Üniversitesi,Mühendislik Fakültesi,Makina Mühendisliği,Ankara,Türkiye)
Burak TIĞLI
(Gazi Üniversitesi,Mühendislik Fakültesi,Makina Mühendisliği,Ankara,Türkiye)
Nuri Eren TÜRKOĞLU
(Politecnico di Milano, Department of Electrical EngineeringMilano, Italy,)
Yıl: 2020Cilt: 40Sayı: 1ISSN: 1300-3615Sayfa Aralığı: 167 - 175İngilizce

20 0
RADIOFREQUENCY ABLATION FOR SPHERICALLY-SHAPED HEPATIC TUMORS
The purpose of this studyis to destroy sphericalshape hepatic tumorsusing radiofrequency ablation method. Three-dimensional finite elementsmethod has been employed. Five different radiofrequencyprobes 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 showthat a spherical shape hepatic tumor can be destroyed using ahybrid electrode construction consistingof four Christmas-tree and four umbrella-shaped electrodes. It is seen that approximately 20 mm-diameter of lesion can be destroyed using hybridelectrode design after eightminutes. It is hoped that hybridelectrode configuration can be usedfor treatment of spherical shape hepatic tumors in clinical applications.
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