Fiber Optic Versus Direct Laser Delivery For Endarterectomy Of Experimental Atheromas

John Eugene; Marc E. Pollock; Stephen J. McColgan; Marie Hammer-Wilson; Michael W. Berns

doi:10.1117/12.950728

14 January 1986 Fiber Optic Versus Direct Laser Delivery For Endarterectomy Of Experimental Atheromas

John Eugene, Marc E. Pollock, Stephen J. McColgan, Marie Hammer-Wilson, Michael W. Berns

Proceedings Volume 0576, Optical Fibers in Medicine and Biology I; (1986) https://doi.org/10.1117/12.950728
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

Direct laser energy delivery was compared to fiber optic laser energy delivery by the performance of open laser endarterectomy in the rabbit arteriosclerosis model. In Group I, 6 open laser endarterectomies were performed with a hand-held CO₂ laser (10.6 pm). In Group II, 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 μm quartz fiber optic. Gross and light microscopic examination revealed uneven endarterectomy surfaces and frequent perforations at the end points in Group I. In Group II, the endarterectomy surfaces were even and the end points were fused with a tapered transition. Energy density for Group I was 38 ±5 J/cm². Energy density for Group II was 110±12 J/cm². CO₂ laser energy was better absorbed by arteriosclerotic rabbit aortas than argon ion laser energy, but it could not be as easily controlled. We conclude that a more precise endarterectomy can be performed with fiber optic delivery of laser energy.

Citation Download Citation

John Eugene, Marc E. Pollock, Stephen J. McColgan, Marie Hammer-Wilson, and Michael W. Berns "Fiber Optic Versus Direct Laser Delivery For Endarterectomy Of Experimental Atheromas", Proc. SPIE 0576, Optical Fibers in Medicine and Biology I, (14 January 1986); https://doi.org/10.1117/12.950728

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