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People with early inflammatory arthritis could benefit from faster and more accurate diagnosis following a major international study that has established, for the first time, age-specific ultrasound standards to distinguish normal joint changes from the earliest signs of disease.
Published in Lancet Rheumatology, the research analyzed more than 28,000 joints from 802 healthy volunteers across 13 countries and developed new ultrasound reference values based on both age and joint type. The findings are expected to help clinicians identify inflammatory arthritis more confidently, reducing the risk of both delayed diagnosis and unnecessary treatment.
Researchers from the University of Birmingham, supported by the National Institute for Health and Care Research (NIHR) Biomedical Research Center (BRC): Birmingham, played a leading role in the study alongside international collaborators.
Andrew Filer said, "Early diagnosis is critical in inflammatory arthritis because prompt treatment can prevent irreversible joint damage and substantially improve long-term outcomes for patients.
"Ultrasound has become an increasingly important tool in rheumatology, but until now we lacked robust international reference standards that reflected what is normal at different ages and in different joints. This study provides that evidence base.
"By establishing clear thresholds for normal and abnormal findings, we can give clinicians greater confidence when assessing patients with suspected inflammatory arthritis and help ensure that people who need treatment are identified as early as possible."
The international project was conducted through the OMERACT (Outcome Measures in Rheumatology) Ultrasound Working Group and jointly led by Filer, professor of translational rheumatology at the University of Birmingham and director of the NIHR BRC: Birmingham, and Maria Antonietta D'Agostino of Università Cattolica del Sacro Cuore and Fondazione Policlinico Universitario Agostino Gemelli IRCCS in Rome.
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