Potential role of collagen in optical behaviour of arterial tissue during laser irradiation

Ramtin Agah, Massoud Motamedi, Praveen Dalmia, Emile Ettedgui, Leon Song, J. Richard Spears

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

9 Citations (Scopus)

Abstract

The optical properties diffuse reflection and transmission of normal porcine aorta and thermally coagulated aorta were measured using low power laser irradiation at 1060 nm, 633 nm, 514 nm, and 325 nm (reflection measurements only). The results from three of the wavelengths (1060nm, 633nm, and 514 nm) were used with a Delta-Eddington diffusion approximation model1,2 to calculate absorption coefficients, μa, and effective scattering coefficients, μs, of the normal and thermally coagulated aorta at these wavelengths. The results show a strong wavelength dependency of irreversible changes in optical properties of thermally damaged aorta, with a trend of increasing changes in reflection approaching smaller wavelengths.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsSteven L. Jacques
Place of PublicationBellingham, WA, United States
PublisherPubl by Int Soc for Optical Engineering
Pages246-252
Number of pages7
Volume1202
ISBN (Print)0819402435
StatePublished - 1990
Externally publishedYes
EventProceedings of Laser-Tissue Interaction - Los Angeles, CA, USA
Duration: Jan 15 1990Jan 17 1990

Other

OtherProceedings of Laser-Tissue Interaction
CityLos Angeles, CA, USA
Period1/15/901/17/90

Fingerprint

aorta
Laser beam effects
collagens
Collagen
Tissue
Wavelength
irradiation
wavelengths
lasers
Optical properties
optical properties
scattering coefficients
absorptivity
Scattering
trends
approximation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Agah, R., Motamedi, M., Dalmia, P., Ettedgui, E., Song, L., & Spears, J. R. (1990). Potential role of collagen in optical behaviour of arterial tissue during laser irradiation. In S. L. Jacques (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1202, pp. 246-252). Bellingham, WA, United States: Publ by Int Soc for Optical Engineering.

Potential role of collagen in optical behaviour of arterial tissue during laser irradiation. / Agah, Ramtin; Motamedi, Massoud; Dalmia, Praveen; Ettedgui, Emile; Song, Leon; Spears, J. Richard.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Steven L. Jacques. Vol. 1202 Bellingham, WA, United States : Publ by Int Soc for Optical Engineering, 1990. p. 246-252.

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

Agah, R, Motamedi, M, Dalmia, P, Ettedgui, E, Song, L & Spears, JR 1990, Potential role of collagen in optical behaviour of arterial tissue during laser irradiation. in SL Jacques (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 1202, Publ by Int Soc for Optical Engineering, Bellingham, WA, United States, pp. 246-252, Proceedings of Laser-Tissue Interaction, Los Angeles, CA, USA, 1/15/90.
Agah R, Motamedi M, Dalmia P, Ettedgui E, Song L, Spears JR. Potential role of collagen in optical behaviour of arterial tissue during laser irradiation. In Jacques SL, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1202. Bellingham, WA, United States: Publ by Int Soc for Optical Engineering. 1990. p. 246-252
Agah, Ramtin ; Motamedi, Massoud ; Dalmia, Praveen ; Ettedgui, Emile ; Song, Leon ; Spears, J. Richard. / Potential role of collagen in optical behaviour of arterial tissue during laser irradiation. Proceedings of SPIE - The International Society for Optical Engineering. editor / Steven L. Jacques. Vol. 1202 Bellingham, WA, United States : Publ by Int Soc for Optical Engineering, 1990. pp. 246-252
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