Method for evaluating optical characteristics of endoscopes for recording fluorescence-related cardiac electrical activity.
Appl Opt
; 41(31): 6725-30, 2002 Nov 01.
Article
en En
| MEDLINE
| ID: mdl-12412663
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 degrees, 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.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Endoscopios
/
Electrofisiología
/
Corazón
Idioma:
En
Revista:
Appl Opt
Año:
2002
Tipo del documento:
Article
País de afiliación:
Estados Unidos