A Low-Cost High-Efficiency Fiber-Optic Coupler for Recording Action Potentials Within the Myocardial Wall

Author

Idriss, S.F. ; Pitruzzello, A.M.

Author_Institution

Dept. of Pediatrics, Duke Univ. Med. Center, Durham, NC

Volume

53

Issue

8

fYear

2006

Firstpage

1708

Lastpage

1711

Abstract

We present a high-efficiency, low-cost wavelength division multiplexer to record cardiac optical action potentials (APs) within the myocardial wall using optical fibers. APs with signal-to-noise ratio as high as 60, without spatial or temporal averaging, and as high as 200, with median-filtering, were recorded in rabbit ventricle

Keywords

bio-optics; bioelectric potentials; biomedical equipment; cardiology; fibre optic sensors; optical fibre couplers; wavelength division multiplexing; cardiac optical action potentials; low-cost high-efficiency fiber-optic coupler; median filtering; myocardial wall; optical fibers; rabbit ventricle; wavelength division multiplexer; Biomedical optical imaging; Connectors; Fluorescence; Myocardium; Optical fiber couplers; Optical fiber devices; Optical fibers; Optical filters; Optical recording; Photodiodes; Cardiac electrophysiology; electrooptic transducers; fluorescence; optical mapping; voltage-sensitive dye; Action Potentials; Animals; Body Surface Potential Mapping; Equipment Design; Equipment Failure Analysis; Heart Conduction System; Microscopy, Fluorescence; Rabbits; Spectrometry, Fluorescence; Ventricular Function;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/TBME.2006.873758

Filename

1658168