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Fig. 3 | BMC Musculoskeletal Disorders

Fig. 3

From: Metacarpal bone loss in patients with rheumatoid arthritis estimated by a new Digital X-ray Radiogrammetry method – initial results

Fig. 3

Examples of BoneXpert analyses of three images with relatively advanced RA showing how the borders of metacarpals have been located. These three cases were “self-validated” by BoneXpert. a strong erosion at caput 5, b Strong erosion at caput 5 and a slight segmentation error at caput 2 and 4, c Strong erosions at all four caputs, but despite this, a rater accurate segmentation of the metacarpal bones

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