Dielectric characterization study of liquid‐based materials for mimicking breast tissues

Abstract

The possibility of mimicking different types of breast tissues to realize experimental phantoms has been investigated by measuring the complex permittivity of polyethylene glycol mono phenyl ether (Triton X-100) and distilled water solutions. In this respect, broad band electromagnetic characterization of several mixtures, at different concentrations, has been carried out in the 0.5???12 GHz frequency range. The good fitting between the dielectric properties of mammary tissues and that of the proposed mixtures, and the stability against temperature in the range 18???30 °C, suggest the possibility of mimicking the dielectric characteristics of breast tissues using easily available and low cost materials

Thermal and Microwave Constrained Focusing for Patient-Specific Breast Cancer Hyperthermia: A Robustness Assessment

“…By trading off the different requirements, the relative permittivity and the conductivity of the background medium have been set to 18 and 0.1 S/m, respectively [24]. A matching liquid having these electromagnetic properties can be obtained by mixing a proper concentration of water and Triton X-100 [26].…”

A Feasibility Study on Microwave Imaging for Brain Stroke Monitoring

“…Note this value takes into account those possibly achievable with realistic media [24]. According to the guidelines given in the previous sub-section, this choice represents a sort of "best case" condition.…”

Magnetic nanoparticle enhanced microwave imaging: Towards an experimental feasibility assessment

“…As shown in panel (b), the poles of the electromagnet are placed in such a way to create a PMF in a given portion of the box, where a plastic container hosting the MNP embedded in the biological medium has been properly positioned. The whole box is filled with a mixture of water and Triton-X100 [5], whose properties allow to achieve a suitable coupling between the microwave fields and the breast [4].…”