Comparative Study on the Dielectric Properties between Living and Nonliving from Human and Animal Livers

Abstract

Abstract-The data of dielectric properties of human tissues mainly comes from animal tissues or human corpse at present. Up to now there has not been a report of dielectric properties of human living liver. Our objective is to study the dielectric properties of human living liver and compare the results with those of animal living liver as well as the human nonliving liver. In vitro measurements of living and nonliving livers from human and rabbit are shown in the 10 Hz to 100 MHz range. Analysis of the conductivity, permittivity and characteristic parameters from the data were made. The conductivity of three kinds of liver were markedly different at low frequency: 0.06 S/m (living rabbit liver), 0.13 S/m (living human liver) and 0.24 S/m (nonliving human liver); The Cole parameters that best characterize the liver of human and rabbit are R0 fc1 R1 and R∞ The Cole parameters that best characterize the living and nonliving liver of human are R0 fc1 R1 R2 and R∞. In conclusion, we can't substitute the dielectric properties of animal or human corpse liver for the living human liver. The results suggest that studying the dielectric properties of living human tissues has great significance.

Correlation between the dielectric properties and biological activities of humanex vivohepatic tissue

“…human liver). Differing animal species would cause some scatter of data (Raicu et al 1998), and our previous study also found a significant difference between the dielectric properties of human liver and animal (rabbit) liver from 10 Hz to 100 MHz during the first half-hour after excision (Wang et al 2013). Hence it is our belief that any additional measurement data on human hepatic tissue are a welcome contribution to the field.…”