Role of ultrasonography in the diagnosis of rheumatic diseases in light of ACR/EULAR guidelines DOI: 10.15557/JoU.2016.0006 MRI of the sacroiliac joints, TIRM sequence (turbo inversion recovery magnitude) (A) and T1FS sequence (T1 fat-suppressed sequence) after contrast agent administration (B): bilateral bone marrow edema in the subchondral layer of the iliac and sacral bone with changes prevailing on the left side undergoes contrast enhancement; and (B) bilateral inflammation of the anterior joint capsule and synovitis