Evaluation of electrical properties of ex vivo human hepatic tissue with metastatic colorectal cancer.

Objective: To probe the distribution of electrical properties in tumor-bearing human hepatic tissues with metastatic colorectal cancer.

Approach: Electrochemical impedance spectroscopy (EIS) and a non-contact electromagnetic probe were used for distinguishing spatial heterogeneities in fresh, unfixed human hepatic tissues ex vivo from patients with metastatic colorectal cancer (CRC).

Main Results: Point-wise EIS measurements reported over a frequency range of 100 Hz-1 MHz showed that the interface tissue between visible tumor and normal tissue exhibits an electrically different domain (p < 0.