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Proceedings Paper

Percutaneous angioscopy of sapphire-tip laser angioplasty
Author(s): Michael Ralph Rees; Abdurrazak A. Gehani; Simon Ashley; Stephen G. Brooks
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Paper Abstract

Percutaneous angioscopy using flexible steerable 2.2mm diameter and non-steerable 1.4 mm. angioscopes together with a guiding catheter system was used to evaluate the endoluminal appearances before and after laser angioplasty using ND-YAG laser energy modified by 1.8,2.2 and 3.0 mm rounded sapphire probes in 8 patients with occlusive peripheral vascular disease. Prior to laser angioplasty, angioscopy demonstrated endoluminal findings that were not detected by angiography. Following laser angioplasty it was observed that the probes predominantly recanalised via the true lumen of the vessel with charring and other evidence of thermal damage being infrequent (3/8 cases) . Where the procedure had been painful, angioscopy demonstrated significant sub-intirnal dissections (2/8 cases) . Angioscopy provides valuable clinical information to support in-vitro experimental evidence of the mode of action of sapphire probes.

Paper Details

Date Published: 1 July 1990
PDF: 6 pages
Proc. SPIE 1201, Optical Fibers in Medicine V, (1 July 1990); doi: 10.1117/12.17515
Show Author Affiliations
Michael Ralph Rees, Killingbeck Hospital (United Kingdom)
Abdurrazak A. Gehani, Killingbeck Hospital (United Kingdom)
Simon Ashley, Killingbeck Hospital (United Kingdom)
Stephen G. Brooks, Killingbeck Hospital (United Kingdom)


Published in SPIE Proceedings Vol. 1201:
Optical Fibers in Medicine V
Abraham Katzir, Editor(s)

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