Recent progress on Frequency Difference Electrical Impedance Tomography

Jin Keun Seo, Bastian Harrach, Eung Je Woo, H. Ammari
2009 ESAIM: Proceedings and Surveys  
Although time-difference EIT(tdEIT) has shown promise as a medical EIT imaging technique such as monitoring lung function, static EIT has suffered from forward computational model errors including boundary geometry and electrode positions uncertainty combined with the ill-posed and highly nonlinear nature of the corresponding inverse problem. Since 1980s, there has been great endeavor to create forward computational models with the necessary accuracy required for EIT reconstruction, but these
more » ... forts were not successful in clinical environment. This is the main reason why we consider frequency-difference EIT (fdEIT) where we take advantage of frequency dependance of biological tissue by injecting currents with at least two different frequencies. In this article, we review recent progress in fdEIT. Article published by EDP Sciences and available at or http://dx.
doi:10.1051/proc/2009011 fatcat:j2l5jru7sbecze3seuddanjab4