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