Quantification of differences in bone texture from plain radiographs in knees with and without osteoarthritis J. Hirvasniemi, J. Thevenot, V. Immonen,

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Quantification of differences in bone texture from plain radiographs in knees with and without osteoarthritis J. Hirvasniemi, J. Thevenot, V. Immonen, T. Liikavainio, P. Pulkkinen, T. Jämsä, J. Arokoski, S. Saarakkala Osteoarthritis and Cartilage Volume 22, Pages S268-S269 (April 2014) DOI: 10.1016/j.joca.2014.02.505 Copyright © 2014 Terms and Conditions

Fig. 1 Regions-of-interest (ROIs) and illustrative presentation of unprocessed, local binary pattern (LBP), and Laplacian-based ROIs. Black rectangles with dotted line = subchondral bone plate ROIs, black-colored rectangles with continuous line = trabecular bone ROIs, white circle = soft tissue ROI. Osteoarthritis and Cartilage 2014 22, S268-S269DOI: (10.1016/j.joca.2014.02.505) Copyright © 2014 Terms and Conditions

Fig. 2 Statistically significant differences between KL groups in medial and lateral tibial subchondral bone plate (SBP) and trabecular bone (TB) using mean grayscale value (GV) and entropy from both Laplacian- based (ELap) and local binary patterns images (ELBP). * = Studied KL group differs significantly from the indicated KL group (LSD post-hoc test). Osteoarthritis and Cartilage 2014 22, S268-S269DOI: (10.1016/j.joca.2014.02.505) Copyright © 2014 Terms and Conditions