The purpose of this study is to analyse the usability of ultrasonography together with biomarkers in the investigation of patients diagnosed with juvenile idiopathic arthritis. The investigators hypothesize that serum and urine markers of cartilage and bone synthesis and degradation, together with ultrasound measurements of joint cartilage thickness, are useful tools in the early evaluation of JIA patients, - as diagnostic, prognostic and monitoring methods.
Study Type
OBSERVATIONAL
Enrollment
95
Scanning 5 joints bilaterally with an ultrasound scanner
Pediatric research dept, Aarhus Universityhospital, Skejby
Aarhus, Region Midt, Denmark
Joint cartilage thickness
Joint catilage thickness measured by ultrasonography: knee, ankle, wrist, metacarpophalangeal and proximal interphalangeal joints by MRI: one knee by plain radiographs: knee, ankel and wrist
Time frame: 1.5 years
Level of different biomarkers in serum and urine
Level of bone- and cartilage-degradation biomarkers in serum and urine. COMP, CTX-II, RANKL/OPG, PYD/DPD
Time frame: 1.5 years
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