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This paper is focused on the influence of the inhomogeneous and anisotropic conductivity of white matter on magnetic and electric field distribution. The simulation is performed on a realistic human head with five-layer tissues. The results show that the magnetic flux density measurement is more similar in sensitivity with the conductivity perturbation than the potential measurement. Some electric...
In this study, forward problem of contactless electrical conductivity imaging is solved by using realistic-head model. Realistic-head model is modelled by a single volume with the ANSYS software and divided into hexahedral elements. Conductivity information for each element is obtained from MR gray-scale images obtained as a result of segmentation.For realistic-head model, a coil of radius 1 cm, 1...
Electric generators of an EEG are well approximated by a single current dipole when they are localized in the brain. The location and vector moment of this equivalent current dipole was estimated from scalp potentials measured with 16 to 32 electrodes arranged on the scalp, where the realistic head model with uniform, homogeneous electric conductivity was used for numerical calculations. The equivalent...
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