The Leeds Dactylitis Index (LDI)
The Leeds dactylitis index (LDI) is a tool for measuring the activity of dactylitis in psoriatic arthritis. Dactylitis is a key feature of this disease, a poor prognostic marker, and a target for treatment. Almost all new pharmaceuticals tested for psoriatic arthritis are tested against this metric
Technology No. 22024
The Leeds dactylitis index measures the severity and activity of dactylitis. It incorporates a measurement instrument (dactylometer – currently manufactured outside the University) and utilises an algorithm for calculation of the index. A guide for the LDI is available.
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swap_vertical_circlelibrary_booksReferences (3)
- Philip S Helliwell, Jill Firth, Gamal H Ibrahim, Richard D Melsom, Irfan Shah, Deborah E Turner , Development of an assessment tool for dactylitis in patients with psoriatic arthritis
- Paul J Healy, Philip S Helliwell , Measuring dactylitis in clinical trials: which is the best instrument to use?
- P J Healy, C Groves, M Chandramohan, P S Helliwell , MRI changes in psoriatic dactylitis--extent of pathology, relationship to tenderness and correlation with clinical indices
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