Paper by ECE-NTUA Ph.D. candidates C.Dimas, V. Alimisis and I. Georgakopoulos, Research Assosiate Dr. N. Voudoukis, Emeritus Prof. N. Uzunoglu and Prof. P.P. Sotiriadis is selected as the cover of the scientific journal "Technologies"

The paper "Evaluation of Thoracic Equivalent Multiport Circuits Using an Electrical Impedance Tomography Hardware Simulation Interface", by Christos Dimas, Vassilis Alimisis, Ioannis Georgakopoulos, Nikolaos Voudoukis, Nikolaos Uzunoglu and Paul P. Sotiriadis, was selected for the cover of the MDPI scientific journal “Technologies” 2021, 9 (3).

Abstract: Electrical impedance tomography (EIT) is a low-cost, safe, and high-temporal-resolution medical imaging modality which is applied extensively in real-time thoracic impedance imaging. Thoracic impedance changes can reveal important information about the patients’ physiological condition, making EIT a valuable medical monitoring tool. However, EIT is very sensitive to measurements’ noise and modeling errors making the design of EIT hardware setup challenging. In this work, we introduce a simulation approach for EIT system hardware and reconstruction algorithm evaluation. It combines the system’s hardware with equivalent circuits of 3D finite-element models based on CT images of thoracic cavities. The 3D models are converted to equivalent RLC networks which are embedded into the system’s hardware. The measured voltage data are used to perform image reconstruction considering different hardware configurations.

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