The T-SCAN (TM) technology: electrical impedance as a diagnostic tool for breast cancer detection

In this paper we present the T-SCAN(TM) technology and its use as a diagnos tic tool for breast cancer detection. We show, using theoretical models wit h simplified geometries, that displaying planar two-dimensional maps of the currents detected at the breast's surface relate to the electric field dis tribution within the breast. This distribution is a manifestation of the bu lk spatial inhomogeneities in the complex dielectric constant that represen t the various tissue types. These differences may be used to discriminate b etween various pathological states. We furthermore illustrate a useful clas sifier, based on admittance data measured up to 2 kHz, and we argue that lo w frequency impedance measurements can be used successfully in breast cance r diagnosis.