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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 31 — Nov. 1, 2002
  • pp: 6725–6730

Method for evaluating optical characteristics of endoscopes for recording fluorescence-related cardiac electrical activity

Soma Sau, Howard I. Bassen, and Victor Krauthamer  »View Author Affiliations


Applied Optics, Vol. 41, Issue 31, pp. 6725-6730 (2002)
http://dx.doi.org/10.1364/AO.41.006725


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Abstract

Nondestructive methods were used to evaluate marketed fiber-optic endoscopes (intended for simple viewing) for fluorescence recording. Our application is for optical recording from the heart. For one angioscope, we measured a focal length of 0.33 mm, a field of view of 45°, an aperture of 0.26 mm, and an efficiency of 43%. We calculated that the angioscope would give a signal-to-noise ratio of 1.0 for a cardiac action potential, if its field of view were divided into a nine-pixel array (for safe continuous illumination). Our methods are useful in designing and evaluating fluorescence fiber-optic systems with superior signal quality and spatial resolution.

© 2002 Optical Society of America

OCIS Codes
(170.2150) Medical optics and biotechnology : Endoscopic imaging
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine
(170.5380) Medical optics and biotechnology : Physiology
(260.2510) Physical optics : Fluorescence

History
Original Manuscript: January 10, 2002
Revised Manuscript: June 3, 2002
Published: November 1, 2002

Citation
Soma Sau, Howard I. Bassen, and Victor Krauthamer, "Method for evaluating optical characteristics of endoscopes for recording fluorescence-related cardiac electrical activity," Appl. Opt. 41, 6725-6730 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-31-6725

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