Design of electrode systems for measuring cardiac micro-impedances using optical sensors

Author

Barr, Roger C. ; Plonsey, Robert

Author_Institution

Dept. of Biomed. Eng., Duke Univ., Durham, NC, USA

Volume

4

fYear

2003

fDate

17-21 Sept. 2003

Firstpage

3756

Abstract

The cardiac electrical substrate is a challenge to direct measurement of its properties. Optical technology together with the capability to fabricate small electrodes at close spacing opens new possibilities. Here those possibilities are explored from a theoretical viewpoint. It appears that with careful measurements from a well designed set of electrodes one can obtain micro-impedances, that is, the impedances of individual components of the tissue measured at a microscopic scale.

Keywords

biological tissues; biomedical electrodes; biomedical measurement; cardiology; electric impedance measurement; optical sensors; cardiac electrical substrate; cardiac micro-impedances measurement; electrode fabrication; electrode systems design; microscopic scale; optical sensors; tissue; Biomedical measurements; Biomedical optical imaging; Biomembranes; Conductivity; Electric variables measurement; Electrodes; Impedance measurement; Optical design; Optical sensors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7789-3

Type

conf

DOI

10.1109/IEMBS.2003.1280977

Filename

1280977