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The timely diagnosis and treatment of melanoma, during the earliest stages of its evolution, is of critical importance to patient survival.

We know that electrical impedance measurements can provide information about the physiological condition of living tissue. The electrical impedance of biological tissue (bio impedance) is dependent on many parameters, including tissue dimensions, the ratio between extra and intra cellular volume, the ionic composition of cells and the manner in which the cells are packed. Some of these parameters are influenced by the pathological condition of the tissue. Accordingly, bioimpedance measurements may be used to diagnose abnormal tissue states, such as cancer.

Since the commercial use of electrical impedance techniques is attracting increased interest, there is a desire to provide an improved electrical impedance probe, monitoring system, and method of measuring that can provide accurate results at high resolution. While some early devices exist, they have not yet been widely accepted by the medical field mainly due to the partially invasive nature of the products. A compact and reliable device remains elusive that can be used by medical practitioners and scientists alike to make electrical impedance measurements on biological material.