The measures of electrical impedance for scanning are based on the distribution of the electrical field of specific tissues and in the measurability of one of the electrical parameters on the surface of the body at the area of interest

The Electrical Transimpedance Scanning is a new modality of image based on the differences in electrical properties of tissues. It is an extremely promising technique to complement other conventional image examinations. Areas presenting abnormalities and/or malignant neoplasia evidence exhibit conductive changes that cause an impedance variation between cancerous ant health tissues. Since there are very few commercial devices available that use the new Electrical Transimpedance Scanning technology, this paper describers the design of a prototype using this technique aiming to contribute somehow in the evaluation of the parameters involved.