RT Journal Article SR Electronic T1 Psoriatic arthritis imaging: a review of scoring methods JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP ii61 OP ii64 DO 10.1136/ard.2004.030809 VO 64 IS suppl 2 A1 van der Heijde, D A1 Sharp, J A1 Wassenberg, S A1 Gladman, D D YR 2005 UL http://ard.bmj.com/content/64/suppl_2/ii61.abstract AB Structural damage assessed on conventional radiographs is an important outcome measure in psoriatic arthritis. This article reviews the available scoring methods. A full description of the methods is given as well as information on various aspects of validity.