Objectives To review and update the existing definition of a positive MRI for classification of
axial spondyloarthritis (SpA). Methods The Assessment in SpondyloArthritis International …

Fibrosis plays an important role in many different pathologies. It results from tissue injury,
chronic inflammation, autoimmune reactions and genetic alterations, and it is characterized …

A taskforce comprised of an expert group of 21 rheumatologists, radiologists and
methodologists from 11 countries developed evidence-based recommendations on the use …

Objective The aim of this study was to define characteristic MRI findings in the spine of
patients with axial spondyloarthritis (SpA) and provide a definition of a positive spinal MRI …

Objective Fat metaplasia in bone marrow on T1‐weighted magnetic resonance imaging
(MRI) scans may develop after resolution of inflammation in patients with ankylosing …

Background Structural damage of the spine in ankylosing spondylitis (AS) is associated with
worse physical function and impaired spinal mobility. Knowledge about predictors of new …

Objective To evaluate active inflammatory lesions (AIL) and structural changes (SC) in
patients with active non-radiographic axial spondyloarthritis (nr-axSpA) compared with …

Spondyloarthritis (SpA) defines a group of interrelated diseases, including ankylosing
spondylitis (AS), psoriatic arthritis, reactive arthritis, enteropathic-related spondylitis and …

Objective Magnetic resonance imaging (MRI) plays a pivotal role in spondyloarthritis (SpA)
diagnosis. However, a detailed description of MRI findings of the sacroiliac (SI) joints and …

OBJECTIVE. Low back pain is one of the most common causes of physician visits in the
United States with an enormous socioeconomic burden. Because of this burden, numerous …