Heat sink effects in thyroid bipolar radiofrequency ablation: an ex vivo study.

ABSTRACT: The study aimed to investigate heat sink effects in radiofrequency ablation (RFA) under thyroid-specific conditions. In an ex vivo model, bovine thyroid lobes were ablated using bipolar RFA with 2.0 kJ energy input at a power level set to 10 W (n = 35) and 25 W (n = 35). Glass vessels (3.0 mm outer diameter) placed within the ablation zone were used to deliver tissue perfusion at various flow rates (0, 0.25, 0.5, 1, 5, 10, 20 ml/min). Temperature was measured in the proximity of the vessel (T_v) and in the non-perfused contralateral region of the ablation zone (T_c), at equal distances to the ablation electrode (d = 8 mm). Maximum temperature within the perfused zone was significantly lowered with T_v ranging from 54.1 ± 1.5 °C (20 ml/min) to 56.9 ± 1.5 °C (0.

SUBMITTER: Klimek K 

PROVIDER: S-EPMC10630443 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature