Imaging of metallic foreign body in organism by microwave

In the paper, an experiment is introduced to carry out imaging detection when there is a metallic foreign body in organism, which is a kind of microwave medical penetrating imaging technique commonly used in medicine, breast cancer and stroke. The main contents of the paper are as follows: firstly, several methods of biomedical imaging are briefly introduced. The advantages of microwave medical imaging are illustrated by comparison. Then, the electromagnetic characteristics of the biological tissue are described, in which the two important parameters are relative permittivity and conductivity. The following is a description of the experiment. The biological tissues used in the experiment are simulated biological tissues made of oil, gelatin, sodium chloride and other materials. The advantage of using simulated biological tissue is to reduce the uncertainties, to facilitate control of the relative permittivity and conductivity, and ensure the success of subsequent biologic imaging. Finally, the biomedical imaging results are analyzed, which shows that microwave imaging of metallic foreign bodies in the organism is feasible.