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Proceedings Paper

Imaging of laser-induced strain in biological tissue: pulsed holmium laser ablation of bovine cornea
Author(s): Guy P. Delacretaz; Joseph T. Walsh; Didier Beghuin
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Paper Abstract

Laser ablation of tissue can be accompanied by deleterious training. A polaroscopic technique was used to image induced strain. In a bovine cornea model, we demonstrate that strain induced by a cavitation bubble occurs over an area larger than the bubble. Further, although the bubble lifetime is only about 400 microseconds and the cornea tissue is strained greatly by the expanding and collapsing bubble, there is substantial strain for several milliseconds after the bubble collapse. The results indicate the utility of polaroscopic imaging as well as the magnitude and spatial extent of mechanical events at times long after the initiating mechanical insult.

Paper Details

Date Published: 14 January 1998
PDF: 5 pages
Proc. SPIE 3195, Laser-Tissue Interaction, Tissue Optics, and Laser Welding III, (14 January 1998); doi: 10.1117/12.297899
Show Author Affiliations
Guy P. Delacretaz, Ecole Polytechnique Federale de Lausanne (Switzerland)
Joseph T. Walsh, Northwestern Univ. (United States)
Didier Beghuin, Ecole Polytechnique Federale de Lausanne (Switzerland)

Published in SPIE Proceedings Vol. 3195:
Laser-Tissue Interaction, Tissue Optics, and Laser Welding III
Guy P. Delacretaz; Guilhem Godlewski; Roberto Pini; Rudolf W. Steiner; Lars Othar Svaasand, Editor(s)

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