- Abstract Number: 590 • 2019 ACR/ARP Annual Meeting - What Is the Impact of MRI on the Performance of the ASAS Classification Criteria in Patients Presenting with Undiagnosed Back Pain?Background/Purpose: Classification criteria for axSpA comprise an imaging and a clinical arm, the former requiring radiographic or MRI evidence of sacroiliitis. Several cohorts have reported…
- Abstract Number: 592 • 2019 ACR/ARP Annual Meeting - Replacement of Radiographic Sacroilitis by MRI Structural Lesions: What Is the Impact on Classification of Axial Spondyloarthritis in the ASAS Classification Cohort?Background/Purpose: xClassification of axial spondyloarthritis is based on the application of either an imaging or clinical arm. Radiographic or MRI evidence of sacroiliitis can be…
- Abstract Number: 593 • 2019 ACR/ARP Annual Meeting - Performance of the ASAS Classification Criteria Presenting with Undiagnosed Back Pain: Data from the Screening in Axial Spondyloarthritis in Psoriasis, Iritis, and Colitis CohortBackground/Purpose: Classification criteria for axial spondyloarthritis (axSpA) that capture the spectrum of disease present challenges due to the frequency of back pain, the relative infrequency…
- Abstract Number: 595 • 2019 ACR/ARP Annual Meeting - What Is the Impact of Discrepancy Between Central and Local Readers in Evaluation of MRI Scans on the Classification of Axial Spondyloarthritis? Data from the ASAS Classification Cohort StudyBackground/Purpose: Active MRI lesions typical of axSpA were reported in 61.6% and 2.2% of axSpA and not-axSpA patients, respectively, from the ASAS classification cohort (ASAS-CC)1.…
