IEEE Transactions on Biomedical Engineering

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Sensitivity Analysis Highlights the Importance of Accurate Head Models for Electrical Impedance Tomography Monitoring of Intracerebral Hemorrhagic Stroke
In this study, we investigate the role of accurate head modeling in electrical impedance tomography (EIT) monitoring of intracerebral hemorrhagic stroke. We compared anatomically detailed six-layer and simplified three-layer finite element models and computed and visualized scalp potentials, lead fields and sensitivity distributions with various perturbations. In addition, inverse imaging was examined with selected cases. Our results show that detailed anatomy and realistic tissue conductivities have significant effect on the simulated measurements, the sensitivities and the EIT images reconstructed from the simulated measurement data. We conclude it’s important to consider the anatomical details such as cerebrospinal fluid in EIT research... Read more