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Cr:Tm:Ho:YAG (2.1 μm) and Nd:YAG (1.444 μm) pulsed-laser lithotripsy of bile duct stones

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Czechoslovak Journal of Physics Aims and scope

Abstract

The Nd:YAG (1.444 μm) and Cr:Tm:Ho:YAG (2.1 μm) free-running laser systems of the output energy of 300 mJ per pulse and repetition rate 1 Hz have been developed and used for bile duct stones fragmentation study in vitro. A total of 67 human bile duct stones of known sizes, collected from surgical sources were used in the experiments. Insensitivity of the stones fragmentation to the type of the laser used, and insensitivity of the fragmentation efficiency to the type of stone, was observed. No pathological changes of the tissue were observed for non-human soft tissue laser irradiation (in vitro) by 1, 2, and 5 pulses of the Cr:Th:Ho:YAG radiation of the fluency of 1.6 J/cm2. The lasers are found to be good candidates for laser lithotripsy.

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Authors and Affiliations

  1. Department of Physical Electronics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19, Praha 1, Czech Republic

    J. Pánek, V. Kubeček & H. Jelínková

  2. Department of Physical Electronics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19, Praha 1, Czech Republic

    P. Hříbek

  3. Postgraduate Institute of Gastroenterology, 2nd Department of Internal Medicine, General Military Hospital Prague, U vojenské nemocnice 1200, 160 00, Praha 6, Czech Republic

    M. Zavoral

Authors
  1. J. Pánek
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  2. P. Hříbek
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  4. H. Jelínková
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  5. M. Zavoral
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Pánek, J., Hříbek, P., Kubeček, V. et al. Cr:Tm:Ho:YAG (2.1 μm) and Nd:YAG (1.444 μm) pulsed-laser lithotripsy of bile duct stones. Czechoslovak Journal of Physics 50, 1027–1041 (2000). https://doi.org/10.1023/A:1022879302188

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