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dc.contributor.author Fernandez Corazza, Mariano
dc.contributor.author Beltrachini, Leandro
dc.contributor.author Von Ellenrieder, Nicolás
dc.contributor.author Muravchik, Carlos Horacio
dc.date.available 2017-08-30T22:07:58Z
dc.date.issued 2013-09
dc.identifier.citation Fernandez Corazza, Mariano; Beltrachini, Leandro; Von Ellenrieder, Nicolás; Muravchik, Carlos Horacio; Analysis of parametric estimation of head tissue conductivities using Electrical Impedance Tomography; Elsevier; Biomedical Signal Processing And Control; 8; 6; 9-2013; 830-837
dc.identifier.issn 1746-8094
dc.identifier.uri http://hdl.handle.net/11336/23356
dc.description.abstract We study the theoretical performance of using Electrical Impedance Tomography (EIT) to measure the conductivity of the main tissues of the head. The governing equations are solved using the Finite Element Method for realistically shaped head models with isotropic and anisotropic electrical conductivities. We focus on the Electroencephalography (EEG) signal frequency range since EEG source localization is the assumed application. We obtain the Cramér-Rao Lower Bound (CRLB) to find the minimum conductivity estimation error expected with EIT measurements. The more convenient electrode pairs selected for current injection from a typical EEG array are determined from the CRLB. Moreover, using simulated data, the Maximum Likelihood Estimator of the conductivity parameters is shown to be close to the CRLB for a relatively low number of measurements. The results support the idea of using EIT as a low-cost and practical tool for individually measure the conductivity of the head tissues, and to use them when solving the EEG source localization. Even when the conductivity of the soft tissues of the head is available from Diffusion Tensor Imaging, EIT can complement the electrical model with the estimation of the skull and scalp conductivities.
dc.format application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject ELECTRICAL IMPEDANCE TOMOGRAPHY
dc.subject CRAMÉR-RAO BOUND
dc.subject MAXIMUM LIKELIHOOD ESTIMATOR
dc.subject ELECTRICAL CONDUCTIVITY ESTIMATION
dc.subject SKULL ANISOTROPY
dc.subject FINITE ELEMENT METHOD
dc.title Analysis of parametric estimation of head tissue conductivities using Electrical Impedance Tomography
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-08-30T13:35:01Z
dc.journal.volume 8
dc.journal.number 6
dc.journal.pagination 830-837
dc.journal.pais Países Bajos
dc.journal.ciudad Ámsterdam
dc.description.fil Fil: Fernandez Corazza, Mariano. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Electrotecnia. Laboratorio de Electrónica Industrial, Control e Instrumentación; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Beltrachini, Leandro. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Electrotecnia. Laboratorio de Electrónica Industrial, Control e Instrumentación; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Von Ellenrieder, Nicolás. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Electrotecnia. Laboratorio de Electrónica Industrial, Control e Instrumentación; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Muravchik, Carlos Horacio. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Electrotecnia. Laboratorio de Electrónica Industrial, Control e Instrumentación; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
dc.journal.title Biomedical Signal Processing And Control
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.bspc.2013.08.003
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S174680941300116X


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)