Electrical impedance scanning: a new approach to skin cancer diagnosis

Abstract

The animal study showed that electrical impedance measurements reflect morphological changes related to the growth of a cancerous skin lesion. These findings are in agreement with a preliminary clinical study. Electrical Impedance Scanning can therefore be considered as an objective and non-invasive tool for differentiation between benign and malignant skin lesions.

Mapping Electrical Impedance Spectra of the Healthy Oral Mucosa: a Pilot Study

“…Posljednjih godina ove se metode sve češće primjenjuju u detekciji tumorskih promjena u različitim tkivima. Tako se impedancijskom spektrografijom mogu procjenjivati različite tumorske tvorbe na koži, u dojci i na sluznici ženskih reproduktivnih organa (3,4,10,11). Bioimpedacijska mjerenja već su ustaljena u stomatološ-koj praksi korištenjem različitih apeksnih lokatora za određi-www.ascro.hr…”

“…Lately, these methods have been increasingly used in the detection of tumors in different tissues. Thus, EI spectroscopy can be used to assess different tumor lesions on the skin, breast and female reproductive organs (3,4,10,11). The application of EI measurements has already been established in dentistry through the use of different apex locators for the root canal length de-…”

“…Diagnostic methods based on EI measurement are used in different fields of medicine. EI spectroscopy, which is the most widely used method, has a long history (Fere and Tarhanov 1888.g), and has been mostly used for the assessment of skin lesions (3)(4)(5)(6). EI is also applied in the assessment of the severity of muscle ischaemia (2).…”

Impedance-Based Detection of Tissue Using a Multi-Electrode Device

“…Electrode material for impedance devices usually consists of either gold or silversilver chloride (Ag/AgCl) [28,34]. Gold is a good conductor and used frequently in microelectrode devices.…”

“…The conductance and capacitance of a malignant tumor were 2.65 uS and 0.05 nF, respectively. They used a normalized conductance (GN) value of 6.32 to reach 95% sensitivity and 67% specificity [34].…”