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Proceedings Paper

Fiber Optic Laser Delivery For Endarterectomy Of Experimental Atheromas
Author(s): John Eugene; Marc E. Pollock; Stephen J. McColgan; Marie Hammer-Wilson; Michael W. Berns
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Paper Abstract

Fiber optic delivery of argon ion laser energy and Nd-YAG laser energy were compared by the performance of open laser endarterectomy in the rabbit arteriosclerosis model. In Group I, 6 open laser endarterectomies were performed with an argon ion laser (488 nm and 514.5 nm) with the laser beam directed through a 400 pm quartz fiber optic. In Group II, 6 open laser endarterectomies were performed with a Nd-YAG laser (1.06 pm) with the laser beam directed through a 600 pm quartz fiber optic. Gross and light microscopic examination revealed smooth endarterectomy surfaces with tapered end points in Group I. In Group II, the endarterectomy surfaces were uneven and perforation occurred at 5/6 end points. Although energy could be precisely delivered with each laser by fiber optics, satisfactory results could only be achieved with the argon ion laser because argon ion energy was well absorbed by atheromas. Successful intravascular laser use requires a strong interaction between wavelength and atheroma as well as a precise delivery system.

Paper Details

Date Published: 5 August 1986
PDF: 3 pages
Proc. SPIE 0605, Optical and Laser Technology in Medicine, (5 August 1986); doi: 10.1117/12.956343
Show Author Affiliations
John Eugene, University of California (United States)
Marc E. Pollock, University of California (United States)
Stephen J. McColgan, University of California (United States)
Marie Hammer-Wilson, University of California (United States)
Michael W. Berns, University of California (United States)

Published in SPIE Proceedings Vol. 0605:
Optical and Laser Technology in Medicine
Robert J. Landry; David H. Sliney; Robert Scott, Editor(s)

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