대한의용생체공학회:학술대회논문집 (Proceedings of the KOSOMBE Conference)

대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
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Pulsed Laser를 이용한 생체조직 가열을 위한 모델링 : Skin Resurfacing을 위한 연관성

Modeling of Pulsed Laser Heating of Tissue: Implications or Skin Resurfacing

  • Kwon, Y.H. (Biomedical Engineering Program, Texas A&M University, College Station) ;
  • Rastegar, S. (Biomedical Engineering Program, Texas A&M University, College Station)
  • 발행 : 1997.11.28
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초록

Pulsed Er:YAG and $CO_2$ lasers induced temperature rise of tissue are studied using axisymmetric, two-dimensional, and transient Pennes' bio-heat equation or the implications of skin resurfacing. Model results indicate that Er:YAG laser induced temperature has much higher but more shallow distribution in tissue than that of the $CO_2$ laser because of its higher absorption coefficient. The increase of repetition rate does not affect the temperature rise too much because these laser modalities have much shorter heat diffusion time than the temporal length of each off-pulse. This model works as a tool to understand the photothermal effect in the laser-tissue interaction.

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