Figure 2 | Scientific Reports

Figure 2

From: Combination of optical coherence tomography and near infrared spectroscopy enhances determination of articular cartilage composition and structure

Figure 2

Representative examples of ICRS0, ICRS1 and ICRS2 grades visualized using light microscopy (a, Safranin-O stained) and OCT (b), along with the cartilage surface and cartilage-subchondral bone interface (c) automatically segmented from the OCT image. Followed by PLM (d,e) images with depth-wise collagen orientation angle (solid line) and birefringence (Bir., dashed line) profiles, DD (f,g) images with depth-wise OD profile, and FTIR-based (h,i) depth-wise profiles of collagen and PG contents. The interface between the superficial and deep zones is presented with the black triangle.

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