PT  - JOURNAL ARTICLE
AU  - Fiona McQueen
AU  - Marissa Lassere
AU  - Paul Bird
AU  - Espen A Haavardsholm
AU  - Charles Peterfy
AU  - Philip G Conaghan
AU  - Bo Ejbjerg
AU  - Harry Genant
AU  - Philip O'Connor
AU  - Paul Emery
AU  - Mikkel Østergaard
TI  - Developing a magnetic resonance imaging scoring system for peripheral psoriatic arthritis.
DP  - 2007 Apr 01
TA  - The Journal of Rheumatology
PG  - 859--861
VI  - 34
IP  - 4
4099  - http://www.jrheum.org/content/34/4/859.short
4100  - http://www.jrheum.org/content/34/4/859.full
SO  - J Rheumatol2007 Apr 01; 34
AB  - We describe the first steps in developing an OMERACT magnetic resonance imaging (MRI) scoring system for peripheral psoriatic arthritis (PsA). A preexisting MRI dataset (finger joints) from 10 patients with PsA was scored by 4 readers for bone erosion, bone edema, synovitis, tendinopathy, and extracapsular features of inflammation (including enthesitis) according to specified criteria. Scoring reliability between readers was moderate to high for bone edema and erosion, but lower for soft tissue inflammation. Measures to improve reliability for future exercises will include reviewing definitions of pathological features and prior reader calibration.