Fig. 2From: Structural changes in the sacroiliac joint on MRI and relationship to ASDAS inactive disease in axial spondyloarthritis: a 2-year study comparing treatment with etanercept in EMBARK to a contemporary control cohort in DESIRCumulative probability of change in MRI structural lesion score in patients with axial spondyloarthritis for erosion (a) and backfill (b) over 104 weeks, average of the readers. MRI magnetic resonance imagingBack to article page