Frequency Domain Modelling of Interrelation between Dielectric and Viscoelastic Properties of Soft Tissues

Abstract

Pathological variation in biological soft tissues are commonly interrelated with changes in their mechanical as well as electrical and properties, which helps to distinguish abnormalities. The interrelation between the dielectric and viscoelastic properties is not well established in the biological soft tissue analysis. In this work, an effort has been made to develop a mathematical model to interrelate the dielectric properties and viscoelastic properties of the soft tissues, in frequency domain. The proposed mathematical models have been derived using standard rheological model namely Zener model and dielectric model known as the Debye model. This work is highly useful for predicting the viscoelastic characteristics of the soft tissues using measurements of dielectric quantities as a function of frequency.