Inverse Problem of 2D Lung Electrical Impedance Tomography

Electrical impedance tomography is a technique that allows to image the distribution of the conductivity of a domain from impedance measurements made at several points on its surface. The method was initially developed by geophysicists for mineral prospecting (Maillet, 1947). However, its biomedical applications were quickly recognized (Brown and Barber, 1984). Electrical Impedance Tomography (EIT) is a non-invasive imaging technology that estimates the electrical conductivity distribution in a domain. In this study, the conductivity is reconstructed from boundary voltage measurements by using a reconstructing algorithm known as the forward problem. Simultaneously, the image reconstruction can be obtained using the inverse problem to detect regional lung ventilation.