The treatment of Hemangioma by Dye laser

DOI

Bibliographic Information

Other Title
  • 血管腫の色素レーザー治療
  • examination by a computer simulation of the temperature change of the wall of blood vessel depending on the diameter
  • 血管径をパラメーターとした血管壁の温度変化のコンピューターシミュレーションによる検討

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Description

Diseases of the blood vessel anomaly group can now be treated by a number of lasers, including the pulsed dye laser. Blood vessels have a variety of diameters, which will in turn affect the result of laser haemocoagulation. We have designed a computer simulation which can calculate the temperature rise in target vessels dependent on the diameter of the vessel. Seven simulations have been carried out, based on the following parameters: exposure time, 400 usec; energy density, 5J/cm2; and the inner diameter of the blood vessels ranging from 10um-640um. For vessels of 10um in diameter, the maximum temperature rise was 2.36°K. For vessels of 640um in diameter, the maximum rise was 18.3°K. We also calculated the time for the temperature to fall by half (temperature half fall time). It was 0.92ms and 225ms for 10um and 640um vessels, respectively. From these data it is easy to infer that the greater efficacy of the dye laser in the treatment of smaller diameter vessels compared to those of a larger diameter is the low temperature rise and shorter duration in the smaller diameter vessels.

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Details 詳細情報について

  • CRID
    1390001205455684736
  • NII Article ID
    130004702478
  • DOI
    10.2530/jslsm1980.15.supplement_359
  • ISSN
    02886200
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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