Clinical Evaluation of a Digital Biomarker for Joint Swelling in Inflammatory Arthritis based on Automated Quantification of Dorsal Finger Fold Patterns
This study demonstrates that the Finger Fold Index (FFI), a digital biomarker derived from automated analysis of smartphone hand photographs, shows a significant association with clinical joint swelling and disease activity in patients with rheumatoid and psoriatic arthritis, suggesting its potential utility for remote patient monitoring.