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

doi:10.1117/12.137454

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 proceeding › Conference contribution

43 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 language	English
Title of host publication	Laser-Tissue Interaction III
Editors	Steven L. Jacques
Publisher	SPIE
Pages	150-160
Number of pages	11
ISBN (Electronic)	9780819407924
DOIs	https://doi.org/10.1117/12.137454
Publication status	Published - 1992 Aug 7
Externally published	Yes
Event	Laser-Tissue Interaction III 1992 - Los Angeles, United States Duration: 1992 Jan 19 → 1992 Jan 24

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1646
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Laser-Tissue Interaction III 1992
Country/Territory	United States
City	Los Angeles
Period	92/1/19 → 92/1/24

Bibliographical note

Funding Information:
This research was supported by a grant from Texas Higher Education

Funding Information:
Coordination Board ATP-004952030 the Department of Energy Grant No.

ASJC Scopus subject areas

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

Access to Document

10.1117/12.137454

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 (pp. 150-160). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1646). SPIE. https://doi.org/10.1117/12.137454

Theoretical analysis of equivalency of high-power diode laser (810nm) and Nd:YAG laser (1064nm) for coagulation of tissue: Predictions for prostate coagulation. / Rastegar, S.; Jacques, S. L.; Motamedi, M. et al.
Laser-Tissue Interaction III. ed. / Steven L. Jacques. SPIE, 1992. p. 150-160 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1646).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Rastegar, S, Jacques, SL, Motamedi, M & Kim, BM 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 SL Jacques (ed.), Laser-Tissue Interaction III. Proceedings of SPIE - The International Society for Optical Engineering, vol. 1646, SPIE, pp. 150-160, Laser-Tissue Interaction III 1992, Los Angeles, United States, 92/1/19. https://doi.org/10.1117/12.137454

Rastegar S, Jacques SL, Motamedi M, Kim BM. Theoretical analysis of equivalency of high-power diode laser (810nm) and Nd:YAG laser (1064nm) for coagulation of tissue: Predictions for prostate coagulation. In Jacques SL, editor, Laser-Tissue Interaction III. SPIE. 1992. p. 150-160. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.137454

Rastegar, S. ; Jacques, S. L. ; Motamedi, M. et al. / Theoretical analysis of equivalency of high-power diode laser (810nm) and Nd:YAG laser (1064nm) for coagulation of tissue : Predictions for prostate coagulation. Laser-Tissue Interaction III. editor / Steven L. Jacques. SPIE, 1992. pp. 150-160 (Proceedings of SPIE - The International Society for Optical Engineering).

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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.",

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

Abstract

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Bibliographical note

ASJC Scopus subject areas

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