Locations evaluated for cartilage loss and bone erosion with magnetic resonance imaging. (A) Cartilage loss was scored in proximal interphalangeal joints 1 to 5, metacarpophalangeal joints (MCP) 1 to 5, and 15 joints in the wrist. (B) Bone erosion was scored in the 10 bones of MCP 1-5 and all 15 bones of the wrist.
Peterfy et al. Arthritis Research & Therapy 2013 15:R44 doi:10.1186/ar4202