Laser-induced fluorescence imaging of coronary arteries for open-heart surgery applications

Roderick S. Taylor; D. Gladysz; Derek W. Brown; Lyall A. J. Higginson

doi:10.1117/12.43880

1 July 1991 Laser-induced fluorescence imaging of coronary arteries for open-heart surgery applications

Roderick S. Taylor, D. Gladysz, Derek W. Brown, Lyall A. J. Higginson

Proceedings Volume 1420, Optical Fibers in Medicine VI; (1991) https://doi.org/10.1117/12.43880
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

A technique utilizing laser induced fluorescence has been developed to obtain direct real-time imaging of the coronary artery network for open heart surgery applications. Both excimer pumped dye and cw argon-ion laser radiation transmitted through a fused silica fiber were used as laser sources to irradiate swine, bovine, and human cadaver hearts whose coronary arteries had been injected with strongly fluorescent dyes. The laser induces fluorescence originating from within the coronary arteries and detected by the surgeon's eye, allows the entire coronary network to be directly viewed. A comparison between laser induced fluorescence and the use of direct visual inspection of arteries following injection of the dye Cardio-Green(R) as well as conventional thermal imaging is presented. The limitations imposed on each technique by layers of fat on top of the coronary arteries are also described. The possibility of using these techniques to detect mechanical or laser beam perforations during laser endarterectomy procedures is discussed.

Citation Download Citation

Roderick S. Taylor, D. Gladysz, Derek W. Brown, and Lyall A. J. Higginson "Laser-induced fluorescence imaging of coronary arteries for open-heart surgery applications", Proc. SPIE 1420, Optical Fibers in Medicine VI, (1 July 1991); https://doi.org/10.1117/12.43880

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