Translator Disclaimer
28 August 1992 Comparison of holmium:YSGG versus Nd:YAG in an artificial circulation model
Author Affiliations +
The effects of pulsed Holmium:Yttrium Scandium Gallium Garnet (Ho:YSGG) laser energy on cadaveric human arterial tissue were compared with our current clinical laser energy source -- Neodymium:Yttrium Aluminum Garnet (Nd:YAG). Dose response, arterial recanalization in an artificial circulation model, and debris formation were assessed. Ho:YSGG was found to be more efficient at ablation than the Nd:YAG, and created a similar quantity of debris during recanalization. Ho:YSGG was also able to ablate calcified arterial occlusions which the Nd:YAG could not. However, Ho:YSGG led to more arterial perforations during the attempted recanalization of very curved vessels, most likely due to the combination of a heavily absorbed wavelength and the relative inflexibility of the 600 micrometers optical fiber used in the experiments. In spite of this shortcoming, Ho:YSGG remains an attractive source for laser angioplasty.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roy N. Lawrence, Jonathan A. Michaels M.D., and Stephen G. Bown "Comparison of holmium:YSGG versus Nd:YAG in an artificial circulation model", Proc. SPIE 1642, Diagnostic and Therapeutic Cardiovascular Interventions II, (28 August 1992);


The Thulium Holmium Chromium YAG Laser A New Tool...
Proceedings of SPIE (September 11 1989)
In-vivo holmium laser angioplasty
Proceedings of SPIE (August 28 1992)
Human Laser Angioplasty: Clinical Applications
Proceedings of SPIE (April 01 1987)

Back to Top