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Proceedings Paper

Mid-infrared lasers for transmyocardial laser revascularization
Author(s): Helena Jelinkova; Michal Nemec; Jan Sulc; Daniel Dvoracek; Vaclav Kubecek; Miroslav Vrbova; Pavel Cerny; Jan Kvasnicka; Milan R. Kokta; Mitsunobu Miyagi
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Paper Abstract

Transmyocardial laser revascularization was fount to be a new emerging technique for the treatment of end-stage coronary artery diseases. In our study, a comparison has been made of mid-IR solid-state laser radiation interaction with a myocardium tissue. For this purpose, the Tm:YAG, CTH:YAG and Er:YAG laser systems were designed, constructed and used for the interaction experiments. The ablation coefficients were measured to be 3 mm/J for Tm:YAG; 0.03 mm/J for CTH:YAG, and 10.5 mm/J for Er:YAG interacting laser radiation. From the histological examination follows that the channels ablated by Er:YAG laser radiation are without any thermal damage of the surrounding tissue and with the minimal mechanical injury, therefore Er:YAG laser could be considered as a good candidate for the TMLR.

Paper Details

Date Published: 31 January 2001
PDF: 6 pages
Proc. SPIE 4156, Clinical Lasers and Diagnostics, (31 January 2001); doi: 10.1117/12.413700
Show Author Affiliations
Helena Jelinkova, Czech Technical Univ. (Czech Republic)
Michal Nemec, Czech Technical Univ. (Czech Republic)
Jan Sulc, Czech Technical Univ. (Czech Republic)
Daniel Dvoracek, Czech Technical Univ. (Czech Republic)
Vaclav Kubecek, Czech Technical Univ. (Czech Republic)
Miroslav Vrbova, Czech Technical Univ. (Czech Republic)
Pavel Cerny, Czech Technical Univ. (Czech Republic)
Jan Kvasnicka, Charles Univ. (Czech Republic)
Milan R. Kokta, Bicron Crystal Products (United States)
Mitsunobu Miyagi, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4156:
Clinical Lasers and Diagnostics
Patrick Brouwer, Editor(s)

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