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
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Three-Dimensional Electrical Impedance Tomography with Multiplicative Regularization
It is known that the image reconstruction problem of electrical impedance tomography (EIT) is ill-posed. As a result, a regularization scheme is usually applied to alleviate the ill-posedness. In the commonly used Tikhonov regularization scheme, a regularization function is added... Read more
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Detection of Vesicoureteral Reflux using Electrical Impedance Tomography
       Vesicoureteral Reflux (VUR) is characterized by the backflow of urine from the bladder to the kidneys and is the most common congenital urinary tract abnormality in children. The condition predisposes children to urinary tract infections (UTIs) and kidney damage. Typically,... Read more
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Skull Modeling Effects in Conductivity Estimates Using Parametric Electrical Impedance Tomography
We estimate scalp, skull, compact bone and marrow bone electrical conductivity values using Electrical Impedance Tomography (EIT) measurements and assess the influence of skull modeling details on the estimates. We collected high density EIT data with 128- and 256-channel EEG... Read more
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Electrical Impedance Tomography: Tissue Properties to Image Measures
Interpretation of Electrical Impedance Tomography (EIT) -based measures is complex. This review focuses on clarifying the various processes starting from the tissue electrical properties, through to diagnostic EIT measures, in order to support accurate interpretation of EIT results. The image... Read more