Abstract
This paper describes a new evaluation technique of impedance pneumographic field using the finite element method. The field is calculated on the basis of the inhomogeneous torso model comprising lungs, heart and thoracic layer. In addition, regional changes of the resistivity of lungs are respected.
It was found that the localized impedance change calculated at each lead and its distribution closely correlated with the regional change of lung's resistivity. It was also shown that the lower resistivity of thoracic layer resulted in a lower detection sensitivity.
