Measurements of ligament and cartilage optical properties at 351 nm, 365 nm, and in the visible range (440 to 800 nm)

Marie-Anne Descalle; Steven L. Jacques; Scott A. Prahl; Timothy J. Laing; William R. Martin

doi:10.1117/12.297911

14 January 1998 Measurements of ligament and cartilage optical properties at 351 nm, 365 nm, and in the visible range (440 to 800 nm)

Marie-Anne Descalle, Steven L. Jacques, Scott A. Prahl, Timothy J. Laing, William R. Martin

Author Affiliations +

Proceedings Volume 3195, Laser-Tissue Interaction, Tissue Optics, and Laser Welding III; (1998) https://doi.org/10.1117/12.297911
Event: BiOS Europe '97, 1997, San Remo, Italy

Abstract

To further evaluate the potential for intra-articular phototherapy, the optical properties of normal porcine ligament and cartilage were determined in vitro. The diffuser reflectance, Rd, was measured with an integrating sphere at 351, 365 nm and in the range 440 - 800 nm. The lateral spread of light introduced by a 400 mm optical fiber was measured and analyzed to yield the optical penetration depth, (delta) . The two measurements, Rd and (delta) yielded the absorption coefficient (mu) _a (cm^-1), and the reduced scattering (mu) _s' equals (mu) _s (1-g) (cm^-1) at 351, 365 nm and in the range 440 - 800 nm.

Citation Download Citation

Marie-Anne Descalle, Steven L. Jacques, Scott A. Prahl, Timothy J. Laing, and William R. Martin "Measurements of ligament and cartilage optical properties at 351 nm, 365 nm, and in the visible range (440 to 800 nm)", Proc. SPIE 3195, Laser-Tissue Interaction, Tissue Optics, and Laser Welding III, (14 January 1998); https://doi.org/10.1117/12.297911

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