Table 4

‚ÄÉComparison of inflammation or structural changes observed on MRI with structural changes on the conventional radiography based on the modified New York criteria

Inflammation and/orRadiographs of SI joint*Total
structural changes on MRISacroiliitisNormal
*Radiographs of the sacroiliac joints were scored according to the modified New York criteria, which were met if bilateral grade 2 or unilateral grade 3 or 4 sacroiliitis was scored.
MRI, magnetic resonance imaging; SI, sacroiliac.
(a) Per joint analysis
Present241438
Absent138598
Total3799136
(b) Per patient analysis
Present in both SI joints11516
Present in one SI joint156
Absent24446
Total145468