electrical impedance tomography

Sensitivity Analysis Highlights the Importance of Accurate Head Models for Electrical Impedance Tomography Monitoring of Intracerebral Hemorrhagic Stroke

Sensitivity Analysis Highlights the Importance of Accurate Head Models for Electrical Impedance Tomography Monitoring of Intracerebral Hemorrhagic Stroke IEEE Transactions on Biomedical Engineering (TBME)
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

Three-Dimensional Electrical Impedance Tomography with Multiplicative Regularization

Author(s): Ke Zhang, Maokun Li, Fan Yang, Shenheng Xu, Aria Abubakar
Three-Dimensional Electrical Impedance Tomography with Multiplicative Regularization 170 177 IEEE Transactions on Biomedical Engineering (TBME)

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…

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Detection of Vesicoureteral Reflux using Electrical Impedance Tomography

Detection of Vesicoureteral Reflux using Electrical Impedance Tomography

Author(s): Eoghan Dunne, Martin O'Halloran, Darren Craven, Prem Puri, Paul Frehill, Sarah Loughney, Emily Porter
Detection of Vesicoureteral Reflux using Electrical Impedance Tomography 170 177 IEEE Transactions on Biomedical Engineering (TBME)

       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…

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Skull Modeling Effects in Conductivity Estimates Using Parametric Electrical Impedance Tomography

Skull Modeling Effects in Conductivity Estimates Using Parametric Electrical Impedance Tomography

Author(s): Mariano Fernández-Corazza, Sergei Turovets, Phan Luu, Nick Price, Carlos Muravchik, Don Tucker
Skull Modeling Effects in Conductivity Estimates Using Parametric Electrical Impedance Tomography 170 177 IEEE Transactions on Biomedical Engineering (TBME)

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…

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Electrical Impedance Tomography: Tissue Properties to Image Measures

Electrical Impedance Tomography: Tissue Properties to Image Measures

Author(s): Andy Adler, Alistair Boyle
Electrical Impedance Tomography: Tissue Properties to Image Measures 170 177 IEEE Transactions on Biomedical Engineering (TBME)

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…

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