An Innovative Approach to MR-based Electrical Properties Tomography

Electrical Properties Tomography is a non-invasive imaging technique that allows the reconstruction of dielectric properties of human tissues, i.e. conductivity and permittivity, from the processing of magnetic resonance images. This study presents an innovative two-step approach to tackle this problem. In the first step, the goal is the simultaneous estimation of the current distribution induced by the radiofrequency (RF) source in the target and the corresponding electric field. In the second step, the constitutive relationship between the current and the field is exploited to estimate the electrical properties from the retrieved current and field distributions. Notably, the splitting of the problem into two steps allows to turn the solution of a non-linear inverse problem to the solution of a linear inverse problem, without introducing approximations. Preliminary results will be presented at the conference to demonstrate the method’s capabilities.