Variation in reported human head tissue electrical conductivity values

H McCann, G Pisano, L Beltrachini - Brain topography, 2019 - Springer
Electromagnetic source characterisation requires accurate volume conductor models
representing head geometry and the electrical conductivity field. Head tissue conductivity is …

Skull modeling effects in conductivity estimates using parametric electrical impedance tomography

M Fernández-Corazza, S Turovets… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
Objective: To estimate scalp, skull, compact bone, and marrow bone electrical conductivity
values based on electrical impedance tomography (EIT) measurements, and to determine …

Scalp-mounted electrical impedance tomography of cerebral hemodynamics

T Ouypornkochagorn, N Terzija, P Wright… - IEEE sensors …, 2022 - ieeexplore.ieee.org
An Electrical Impedance Tomography (EIT) system has been developed for dynamic three-
dimensional imaging of changes in conductivity distribution in the human head, using scalp …

Estimation method for the anisotropic electrical conductivity of in vivo human muscles and fat between 10 kHz and 1 MHz

O Kangasmaa, I Laakso - Physics in Medicine & Biology, 2022 - iopscience.iop.org
Objective. In low frequency dosimetry the variability in the electrical conductivity values
assigned to body model tissues represents a major source of uncertainty. The aim of this …

Effects of head model inaccuracies on regional scalp and skull conductivity estimation using real EIT measurements

M Fernández-Corazza, S Turovets… - II Latin American …, 2016 - Springer
Abstract we estimate the scalp and skull conductivities on two healthy adults, based on
bounded (or parametric) Electri-cal Impedance Tomography (bEIT) measurements, and …

In Vivo Estimation of Head Tissue Conductivities Using Bound Constrained Optimization

T Ouypornkochagorn, S Ouypornkochagorn - Annals of Biomedical …, 2019 - Springer
The conductivity of head tissues was noninvasively estimated using electrical impedance
tomography technique. Instead of using conventional unconstrained optimization method to …

Constrained modeling for image reconstruction in the application of Electrical Impedance Tomography to the head

T Ouypornkochagorn - 2017 IEEE 14th International …, 2017 - ieeexplore.ieee.org
Electrical Impedance Tomography (EIT) is an alternative way to image brain functions, in the
form of conductivity distribution image, by using the boundary voltage information while a …

Tackling modelling error in the application of electrical impedance tomography to the head

T Ouypornkochagorn, H McCann… - 2015 37th Annual …, 2015 - ieeexplore.ieee.org
In the head application of Electrical Impedance Tomography (EIT), reconstruction of voltage
measurements for a conductivity distribution image using an ordinary method, the absolute …

Potential for Stroke Monitoring using Electrical Impedance Tomography with Scalp-Mounted Electrodes.

T Ouypornkochagorn, N Terzija… - International …, 2022 - search.ebscohost.com
Abstract Electrical Impedance Tomography of the human head using scalp-mounted
electrodes may be of value for stroke diagnosis and/or monitoring. To image the relevant …

Variability of head tissues' conductivities and their impact in electrical brain activity research

H McCann - 2022 - orca.cardiff.ac.uk
The presented thesis endeavoured to establish the impact that the variability in electrical
conductivity of human head tissues has on electrical brain imaging research, particularly …