Response to: 'Correspondence on 'MRI lesions in the sacroiliac joints of patients with spondyloarthritis: an update of definitions and validation by the ASAS MRI working group'' by Jibri et al .

We thank Dr Jibri and colleagues1 for their comments on our recently published article in the Annals of the Rheumatic Diseases entitled ‘MRI lesions in the sacroiliac joints of patients with spondyloarthritis: an update of definitions and validation by the ASAS MRI working group’.2 In their study, two musculoskeletal radiologists evaluated MRI scans from 94 cases selected from the department of radiology database of a tertiary care academic hospital who had dedicated sacroiliac joint (SIJ) MRI for the assessment of axial spondyloarthritis (axSpA). Information on final diagnosis in these cases, detection of bone marrow oedema (BME) considered highly suggestive of axSpA as opposed to just the presence/absence of BME and reader calibration activities prior to the reliability exercise are not reported. The electronic case report form (eCRF) for Assessment of Spondyloarthritis International Society (ASAS) readers in our report included links to consensus reference images for each lesion and calibration modules with examples of MRI lesions on Digital Imaging Communications in Medicine (DICOM) images, …