A wideband model to evaluate the dielectric properties of biological tissues from magnetic resonance acquisitions.

The use of medical techniques based on the application of electromagnetic fields is significantly increasing. To provide safe and effective treatments, it is necessary to know how human tissues react to the applied electromagnetic field. Since this information is embedded in the dielectric properties of biological tissues, an accurate and precise dielectric characterization is needed. Biological tissues are heterogenous, and their characteristics depend on several factors. Consequently, it is necessary to characterize dielectric properties in vivo for each specific patient. While this aim cannot be reached with traditional measurement techniques, through the adopted model these properties can be reconstructed in vivo on a wide frequency band from non-invasive MRI acquisitions.