Three‐Dimensional Monitoring of Thawing of Biological Tissue Using Electrical Impedance Tomography

SUMMARY In this study, thawing of biological tissue was tried monitoring using three‐dimensional (3D) electrical impedance tomography (EIT). To measure 3D throwing process, a printed circuit board was developed. It contained a circular measurement hole with 5 mm in diameter and included four layers of eight electrodes arrays individually. A frozen columned beef was set at the center of the measurement hole and thawing process could be observed real‐timely. The EIT measured from bottom layer showed the fastest throwing of frozen columned beef where it had highest thermal conductivity. And other EITs from upper layers showed slower thawing. Results showed feasibility of 3D monitoring of thawing using EIT.