A Combined Invasive-noninvasive Conductivity Profile Reconstruction Approach For Thermal Imaging In Hyperthermia

In this paper reconstructions of a continuous conductivity profile using surface only and surface plus internal recordings are compared. It is shown that in a simple test case an order of magnitude improvement in the reconstructed conductivity distribution can be expected in the region where the invasive measurements are supplied when such internal recordings are used to supplement standard surface electrode measurements in impedance imaging. This surface plus internal measurement approach is potentially useful in impedance imaging applications where a limited number of invasive recordings are possible such as when monitoring complete temperature distributions in tumors through changing conductivity patterns during hyperthermia cancer therapy.