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Article

Three-Phase-Lag Bio-Heat Transfer Model of Cardiac Ablation

1
Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
2
MS2Discovery Interdisciplinary Research Institute, Wilfrid Laurier University, 75 University Avenue West, Waterloo, ON N2L 3C5, Canada
3
Department of Mechanical Engineering, Politecnico di Milano, 20156 Milan, Italy
4
BCAM—Basque Center for Applied Mathematics, Alameda de Mazarredo 14, E-48009 Bilbao, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Eduardo Divo, Alain Kassab, Ray Prather and Arka Das
Fluids 2022, 7(5), 180; https://doi.org/10.3390/fluids7050180
Received: 15 April 2022 / Revised: 13 May 2022 / Accepted: 19 May 2022 / Published: 21 May 2022
(This article belongs to the Special Issue Cardiovascular Hemodynamics)
Significant research efforts have been devoted in the past decades to accurately modelling the complex heat transfer phenomena within biological tissues. These modeling efforts and analysis have assisted in a better understanding of the intricacies of associated biological phenomena and factors that affect the treatment outcomes of hyperthermic therapeutic procedures. In this contribution, we report a three-dimensional non-Fourier bio-heat transfer model of cardiac ablation that accounts for the three-phase-lags (TPL) in the heat propagation, viz., lags due to heat flux, temperature gradient, and thermal displacement gradient. Finite element-based COMSOL Multiphysics software has been utilized to predict the temperature distributions and ablation volumes. A comparative analysis has been conducted to report the variation in the treatment outcomes of cardiac ablation considering different bio-heat transfer models. The effect of variations in the magnitude of different phase lags has been systematically investigated. The fidelity and integrity of the developed model have been evaluated by comparing the results of the developed model with the analytical results of the recent studies available in the literature. This study demonstrates the importance of considering non-Fourier lags within biological tissue for predicting more accurately the characteristics important for the efficient application of thermal therapies. View Full-Text
Keywords: hyperthermia; cardiac ablation; bio-heat transfer; non-Fourier heat transfer; TPL model; numerical simulations hyperthermia; cardiac ablation; bio-heat transfer; non-Fourier heat transfer; TPL model; numerical simulations
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MDPI and ACS Style

Singh, S.; Saccomandi, P.; Melnik, R. Three-Phase-Lag Bio-Heat Transfer Model of Cardiac Ablation. Fluids 2022, 7, 180. https://doi.org/10.3390/fluids7050180

AMA Style

Singh S, Saccomandi P, Melnik R. Three-Phase-Lag Bio-Heat Transfer Model of Cardiac Ablation. Fluids. 2022; 7(5):180. https://doi.org/10.3390/fluids7050180

Chicago/Turabian Style

Singh, Sundeep, Paola Saccomandi, and Roderick Melnik. 2022. "Three-Phase-Lag Bio-Heat Transfer Model of Cardiac Ablation" Fluids 7, no. 5: 180. https://doi.org/10.3390/fluids7050180

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