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dc.contributor.authorDhiman, M.-
dc.contributor.authorKumawat, A. K.-
dc.contributor.authorRepaka, R.-
dc.date.accessioned2021-07-28T17:17:03Z-
dc.date.available2021-07-28T17:17:03Z-
dc.date.issued2021-07-28-
dc.identifier.urihttp://localhost:8080/xmlui/handle/123456789/2246-
dc.description.abstractPurpose: To analyse the feasibility of directional ablation using a multi-tine electrode. Methods: A multi-tine electrode capable of operating in multipolar mode has been used to study the directional ablation. In addition to the basic design, similar to commercially available FDA approved multi-tine electrode, tines have been insulated from each other inside the probe base and tip using a thin insulating material of thickness 0.25 mm. A cylindrical single-compartment model of size 6 cm × 6 cm has been used to model normal liver tissue. The temperature-controlled radiofrequency ablation has been employed to maintain the tine-tips at different temperatures. Electro-thermal simulations have been performed by using a commercial multi-physics software package based on finite element methods. To make this study feasible a new approach to predict the ablations have been proposed and used in this study. Results: Asymmetric ablation zone with up to 5 mm difference in ablation boundary between the intended and non-intended direction has been observed along the transverse direction. Reduction in ablation up to 5 mm along the axial direction in comparison to the monopolar mode has also been observed. Conclusion: Multi-tine electrode modified to operate in multipolar mode can create directional ablations of different shapes and can be used to target position and shape specific tumours.en_US
dc.language.isoen_USen_US
dc.subjectRadiofrequency ablationen_US
dc.subjectDirectional ablationen_US
dc.subjectTemperature-controlled RFAen_US
dc.subjectMulti-tine electrodeen_US
dc.subjectMultipolar mode RFAen_US
dc.titleDirectional ablation in radiofrequency ablation using a multi-tine electrode functioning in multipolar mode: an in-silico study using a finite set of statesen_US
dc.typeArticleen_US
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