Directional polarization sensitivity of articular cartilage by optical coherence tomography

Tuqiang Xie; Shouguang Guo; Jun Zhang; Zhongping Chen; George M. Peavy

doi:10.1117/12.649112

20 February 2006 Directional polarization sensitivity of articular cartilage by optical coherence tomography

Tuqiang Xie, Shouguang Guo, Jun Zhang, Zhongping Chen, George M. Peavy

Proceedings Volume 6079, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine X; 60792E (2006) https://doi.org/10.1117/12.649112
Event: SPIE BiOS, 2006, San Jose, California, United States

Abstract

In this paper, the polarization sensitivity of articular cartilage was investigated by using polarization sensitivity optical coherence tomography (PS-OCT) obtained by varying the angel of incident illumination. Experimental results show that when the incident light is perpendicular to the tissue surface, normal articular cartilage demonstrates little polarization sensitivity. Significant variations in birefringence of articular cartilage observed when the angle of incident light was adjusted between 0° and 90° relative to the tissue surface. Directional polarization sensitivity of articular cartilage as obtained by PS-OCT imaging using variations in the angle of incident illumination can be used to access the orientation and organization of the collagen matrix of these tissues. The polarization sensitivity and the birefringence images obtained can be explained by the angle of illumination relative to the unique microstructure and orientation of the collagen fibrils and fibers of articular cartilage.

Citation Download Citation

Tuqiang Xie, Shouguang Guo, Jun Zhang, Zhongping Chen, and George M. Peavy "Directional polarization sensitivity of articular cartilage by optical coherence tomography", Proc. SPIE 6079, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine X, 60792E (20 February 2006); https://doi.org/10.1117/12.649112

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KEYWORDS

Cartilage

Polarization

Collagen

Natural surfaces

Birefringence

Optical coherence tomography

Tissues

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