Lung ventilation functional monitoring based on electrical impedance tomography

Abstract

Medically, electrical impedance tomography (EIT) is a relatively inexpensive, safe, non-invasive and portable technique compared with computerized tomography (CT) and magnetic resonance imaging (MRI). In this paper, EIT_TJU_II system is developed including both the data collection system and image reconstruction algorithm. The testing approach of the system performance, including spatial resolution and sensitivity, is described through brine tank experiments. The images of the thorax physical model verify that the system can reconstruct the interior resistivity distribution. Finally, the lung ventilation functional monitoring in vivo is realized by EIT, and the visualized images indicate that the configuration and performance of EIT_TJU_II system are feasible and EIT is a promising technique in clinical monitoring application.

Keywords

electrical impedance tomography (EIT) / lung ventilation / image reconstruction / spatial resolution / sensitivity

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