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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
Attenuation Coefficient Estimation in Thermal Ablation Procedures
Submission Author:
Ingrid Mabel Ventura , RJ
Co-Authors:
Ingrid Mabel Ventura, Luiz A. S. Abreu, Bruna Loiola
Presenter: Ingrid Mabel Ventura
doi://10.26678/ABCM.ENCIT2020.CIT20-0810
Abstract
The goal of this study is to estimate the attenuation coefficient related to a external heat source used in thermal ablation procedures. To achieve this, the classical bioheat equation and a laser source was considered to model the problem under investigation. Seeking simulated temperature measurements, the generalized integral transform technique is used to solve the direct problem and this solution is verified against others direct solution methodologies. The sensitivity of the parameters is examined and the Markov Chain Monte Carlo method with the Metropolis-Hastings algorithm is used in the inverse analysis. The comparison between direct approach solutions shows an excellent agreement and the attenuation coefficient is accurately estimated.
Keywords
Attenuation coefficient, bioheat transfer, GITT, Inverse analysis, MCMC
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