Fluorescence response of selected tissues in the canine heart: an attempt to find the conduction system

David J. Aziz; Anthony Caruso; Maria Aguirre; Arthur F. Gmitro

doi:10.1117/12.137301

28 August 1992 Fluorescence response of selected tissues in the canine heart: an attempt to find the conduction system

David J. Aziz, Anthony Caruso, Maria Aguirre, Arthur F. Gmitro

Proceedings Volume 1642, Diagnostic and Therapeutic Cardiovascular Interventions II; (1992) https://doi.org/10.1117/12.137301
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

Fluorescence response of canine heart tissue is studied in an attempt to localize the conduction system atrioventricular (AV) node. Data is collected for 364 nm and 308 nm illumination via a 750 micrometers diameter fiber placed against the tissue. This is done for sample locations in the right atrium, AV ring, and right ventricle, and for a rectilinear grid of sample locations in the AV node region. Sample locations are marked via tissue ablation with a 2.1 micrometers Ho:YAG laser and removed for histological analysis. Fluorescence responses are given for 364 nm and 308 nm illumination. No evidence of distinguishable fluorescence by the AV node is seen at either wavelength.

Citation Download Citation

David J. Aziz, Anthony Caruso, Maria Aguirre, and Arthur F. Gmitro "Fluorescence response of selected tissues in the canine heart: an attempt to find the conduction system", Proc. SPIE 1642, Diagnostic and Therapeutic Cardiovascular Interventions II, (28 August 1992); https://doi.org/10.1117/12.137301

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