title: Principles of the impedance technique.
abstract: A simplified treatment of the electrical impedance of biological tissues is presented, examining the sources of impedance changes and the requirements for recording these changes. The author covers small electrodes, simple models, resistivity of blood, the reactive component in bioimpedance, the use of bioadmittance, the use of the finite-element technique and impedance matching.
authors.affiliation: Biomed. Eng. Program, Texas Univ., Austin, TX.
authors.forename: L E
authors.initials: LE
authors.lastname: Baker