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 Cohort
Background/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 Study
Background/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.…