Theoretical analysis of equivalency of high-power diode laser (810nm) and Nd:YAG laser (1064nm) for coagulation of tissue: Predictions for prostate coagulation

S. Rastegar, S. L. Jacques, M. Motamedi, B. M. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

36 Citations (Scopus)

Abstract

Profiles of Light, temperature, and thermal damage distributions in tissue based on measured optical properties are examined theoretically for high power diode laser (810 nm) and Nd:YAG laser (1064 nm). Generally higher absorption and effectively lower optical penetration has been experimentally observed at the wavelength of diode laser as compared to that of Nd:YAG laser. Results of this study indicate that similar thermal damage volumes are expected to be obtained by the two lasers, in general. However for same irradiation conditions a larger volume of damage and more charring near the surface is predicted when using the diode laser on prostate tissue, and similarly for myocardial tissue. Role of blood presence throughout tissue, in terms of its optical interaction, as well as the role of a small layer of blood between the laser and the tissue is also investigated for both wavelengths.

Original languageEnglish
Title of host publicationLaser-Tissue Interaction III
EditorsSteven L. Jacques
PublisherSPIE
Pages150-160
Number of pages11
ISBN (Electronic)9780819407924
DOIs
Publication statusPublished - 1992 Aug 7
EventLaser-Tissue Interaction III 1992 - Los Angeles, United States
Duration: 1992 Jan 191992 Jan 24

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1646
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherLaser-Tissue Interaction III 1992
CountryUnited States
CityLos Angeles
Period92/1/1992/1/24

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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    Rastegar, S., Jacques, S. L., Motamedi, M., & Kim, B. M. (1992). Theoretical analysis of equivalency of high-power diode laser (810nm) and Nd:YAG laser (1064nm) for coagulation of tissue: Predictions for prostate coagulation. In S. L. Jacques (Ed.), Laser-Tissue Interaction III (pp. 150-160). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1646). SPIE. https://doi.org/10.1117/12.137454