Comparisons between Circle and Structural Models in Lung Ventilation Reconstruction by Electrical Impedance Tomography

In this paper, a set of electrical impedance tomography (EIT) system, EIT_TJU II system is presented. A physical model regarding the prior information of human thorax has been illustrated, and the sensitivities distribution comparing with the circle model is analyzed. By numerical analyzing the uniformity and the nonlinearity of the structural model are improved. The lung ventilation experiments are undertaken on the different models. The visualization results of lung ventilation indicate that EIT incorporating prior information is a promising technique which has the potential to be applied in future clinical diagnoses and monitoring.