Mid-infrared lasers for transmyocardial laser revascularization

Helena Jelinkova; Michal Nemec; Jan Sulc; Daniel Dvoracek; Vaclav Kubecek; Miroslav Vrbova; Pavel Cerny; Jan Kvasnicka; Milan R. Kokta; Mitsunobu Miyagi

doi:10.1117/12.413700

31 January 2001 Mid-infrared lasers for transmyocardial laser revascularization

Helena Jelinkova, Michal Nemec, Jan Sulc, Daniel Dvoracek, Vaclav Kubecek, Miroslav Vrbova, Pavel Cerny, Jan Kvasnicka, Milan R. Kokta, Mitsunobu Miyagi

Author Affiliations +

Proceedings Volume 4156, Clinical Lasers and Diagnostics; (2001) https://doi.org/10.1117/12.413700
Event: EOS/SPIE European Biomedical Optics Week, 2000, Amsterdam, Netherlands

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.

Citation Download Citation

Helena Jelinkova, Michal Nemec, Jan Sulc, Daniel Dvoracek, Vaclav Kubecek, Miroslav Vrbova, Pavel Cerny, Jan Kvasnicka, Milan R. Kokta, and Mitsunobu Miyagi "Mid-infrared lasers for transmyocardial laser revascularization", Proc. SPIE 4156, Clinical Lasers and Diagnostics, (31 January 2001); https://doi.org/10.1117/12.413700

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