Szczegóły publikacji
Opis bibliograficzny
Influence of the radiofrequency applicators arrangement on the sizes of ablative zones inside hepatic tumor / Piotr GAS, Arkadiusz Miaskowski // Archives of Electrical Engineering ; ISSN 1427-4221. — Tytuł poprz.: Archiwum Elektrotechniki ; ISSN: 0004-0746. — 2024 — vol. 73 no. 3, s. 557-571. — Bibliogr. s. 568–571, Abstr. — Publikacja dostępna online od: 2024-09-24
Autorzy (2)
- AGHGas Piotr
- Miaskowski Arkadiusz
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 155527 |
|---|---|
| Data dodania do BaDAP | 2024-09-25 |
| Tekst źródłowy | URL |
| DOI | 10.24425/aee.2024.150883 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Archives of Electrical Engineering |
Abstract
Radiofrequency (RF) ablation is a popular therapeutic technique for heating solid tumors that are medically unsuitable for resection or other treatments. Thermal ablation applicators create high-frequency electromagnetic fields (EMFs) within the tumor site, which causes heating, coagulation, and ultimately death of the cancer cells. The aim of this study is the numerical analysis of the temperature distributions, ablation zones, and specific absorption rates (SAR) during RF ablation in relation to an ellipsoidal shaped tumor placed in the model of liver tissue. The source of heat is a three-element system of RF needle applicators operating at a frequency 100 kHz, with a given electrode potential, inserted into the tumor. In order to obtain an appropriate temperature distribution in the target area, the Laplace equation coupled with the Pennes equation were solved using the finite element method (FEM). The arrangement effect of three needle-type applicators on the resultant thermal profiles and the volumes of ablation zones were analyzed and compared. In addition, the ablation zones for various angles of the RF applicator placed in the center of the tumor were analyzed. The paper shows that in order to control temperature distribution and ablation zones the proposed system of RF applicators and the arrangement of electrodes can be successfully applied in hepatocellular carcinoma treatment.
