Percutaneous angioscopy of sapphire-tip laser angioplasty

Michael Ralph Rees; Abdurrazak A. Gehani; Simon Ashley; Stephen G. Brooks

doi:10.1117/12.17515

1 July 1990 Percutaneous angioscopy of sapphire-tip laser angioplasty

Michael Ralph Rees, Abdurrazak A. Gehani, Simon Ashley, Stephen G. Brooks

Proceedings Volume 1201, Optical Fibers in Medicine V; (1990) https://doi.org/10.1117/12.17515
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

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.

Citation Download Citation

Michael Ralph Rees, Abdurrazak A. Gehani, Simon Ashley, and Stephen G. Brooks "Percutaneous angioscopy of sapphire-tip laser angioplasty", Proc. SPIE 1201, Optical Fibers in Medicine V, (1 July 1990); https://doi.org/10.1117/12.17515

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