BRAIN THERMAL AND ELECTRICAL PROPERTIES ESTIMATION USING EXPERIMENTAL DATA FROM DEEP BRAIN STIMULATION LEAD

Lucas Correia da Silva Jardim, Luiz Alberto da Silva Abreu, Diego Campos Knupp, Antônio José da Silva Neto

Resumo


Deep Brain Stimulation (DBS) is a well-established neurosurgery that alleviates the symptoms of several movement disorders and other brain related conditions. It works by placing a small lead containing electrodes inside the patient's brain and using them to electrically stimulate that area. Although this procedure is very common, little is known about its physiological effects on the brain and, on top of that, injuries caused from burning have been reported. The present work intends to formulate and solve a bioheat transfer model of the brain containing a DBS lead and, furthermore, to use this solution for solving an inverse problem of determining the thermal and electrical conductivities of the brain tissue using measurements supposedly obtained with a sensor inside the DBS lead.The results revealed that it is possible to estimate the both parameters especially when the measurements uncertainties are relatively small.

Palavras-chave


Deep Brain Stimulation; Bioheat Transfer; Inverse Problem; Parameter Estimation; Electrical Heating

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DOI: http://dx.doi.org/10.21575/25254782rmetg2020vol5n61349

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Direitos autorais 2020 Lucas Correia da Silva Jardim, Luiz Alberto da Silva Abreu, Diego Campos Knupp, Antônio José da Silva Neto

Revista Mundi Engenharia, Tecnologia e Gestão ISSN 2525-4782

Qualis: B4 - Interdisciplinar, B5 - Geografia, B5 - Administração Pública e de Empresas, Ciências Contábeis e Turismo, B5 - Comunicação e Informação, B5 - Engenharias III