Comparative examination of fiber tips in myocardium using a holmium:YAG laser

Shi-Ming Zheng; Robert A. Kloner M.D.; Peter Whittaker

doi:10.1117/12.137479

7 August 1992 Comparative examination of fiber tips in myocardium using a holmium:YAG laser

Shi-Ming Zheng, Robert A. Kloner M.D., Peter Whittaker

Proceedings Volume 1646, Laser-Tissue Interaction III; (1992) https://doi.org/10.1117/12.137479
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

We sought to compare the properties of cylindrical and ball tip fibers (in conjunction with a holmium:YAG laser) by examining both their beam characteristics and the characteristics of the channels formed when the fibers passed through myocardial tissue. We found that the cylindrical fiber tip was able to produce a wider, more uniform channel with less surrounding thermal damage than the ball tip fiber. We attribute these findings to the shorter focal length, smaller beam spot size, and greater beam divergence produced by the ball tip fiber.

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Shi-Ming Zheng, Robert A. Kloner M.D., and Peter Whittaker "Comparative examination of fiber tips in myocardium using a holmium:YAG laser", Proc. SPIE 1646, Laser-Tissue Interaction III, (7 August 1992); https://doi.org/10.1117/12.137479

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KEYWORDS

Tissues

Laser tissue interaction

Injuries

Collagen

Fiber lasers

Laser ablation

Natural surfaces

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