Objective To estimate the prevalence of rheumatoid arthritis (RA) from international
population-based studies and investigate the influence of prevalence definition, data sources, …

Objectives: Painful osteoarthritis (OA) of the hand is common and a validated ultrasound (US)
scoring system would be valuable for epidemiological and therapeutic outcome studies. …

Gout is one of the most common inflammatory arthritides. The literature reveals that management
of this condition is often suboptimal. Imaging techniques, such as ultrasound (US), may …

Objective To evaluate the efficacy of infliximab in HLA–B27–positive patients with magnetic
resonance imaging (MRI)–determined early sacroiliitis, using both clinical and MRI …

Objective Few studies have examined hand osteoarthritis (OA) pathology using sensitive
imaging techniques. The aim of this study was to determine the extent of ultrasound (US)–…

Objective. The Outcome Measures in Rheumatology (OMERACT) Ultrasound (US) Working
Group (WG) operates research activities for the validation of US as an outcome …

Objective. To produce consensus-based definitions of the US elementary lesions in gout and
to test their reliability in a web-based exercise. Methods. The process consisted of two steps…

Objectives: Ultrasonography (US) is used in rheumatology to assess small joints in
inflammatory arthritis. Recently there has been some investigation into the utility of US in …

Gout is a common inflammatory arthritis and is caused by accumulation of monosodium
urate crystals in joints and soft tissues. Apart from joint damage, untreated gout is associated …

Objectives To develop an Outcome Measures in Rheumatology (OMERACT) ultrasonography
score for monitoring disease activity in giant cell arteritis (GCA) and evaluate its metric …