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, Massoud Motamedi, B. M. Kim

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

35 Scopus citations

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 (US)
Title of host publicationLaser-Tissue Interaction III
EditorsSteven L. Jacques
PublisherSPIE
Pages150-160
Number of pages11
Volume1646
ISBN (Electronic)9780819407924
DOIs
StatePublished - Aug 7 1992
EventLaser-Tissue Interaction III 1992 - Los Angeles, United States
Duration: Jan 19 1992Jan 24 1992

Other

OtherLaser-Tissue Interaction III 1992
CountryUnited States
CityLos Angeles
Period1/19/921/24/92

    Fingerprint

ASJC Scopus subject areas

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

Cite this

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 (Vol. 1646, pp. 150-160). SPIE. https://doi.org/10.1117/12.137454