Jans Lennart, Egund Niels, Eshed Iris, Sudoł-Szopińska Iwona, Jurik Anne Grethe
Ghent University Hospital, Gent, Belgium.
Department of Radiology, Aarhus University Hospital, Aarhus, Denmark.
Semin Musculoskelet Radiol. 2018 Apr;22(2):180-188. doi: 10.1055/s-0038-1639470. Epub 2018 Apr 19.
To review the strengths, limitations, and new insights in the anatomy and magnetic resonance imaging (MRI) features of active and structural lesions of sacroiliitis in spondyloarthritis.
MRI plays a key role in the diagnosis and follow-up of sacroiliitis in spondyloarthritis. MRI of the sacroiliac joints in affected patients may show active lesions such as bone marrow edema, capsulitis, enthesitis, or synovitis as well as structural changes such as erosion, fat infiltration, sclerosis, backfill, and ankylosis. Active lesions of sacroiliitis on MRI are particularly important for the diagnosis and assessment of ongoing active inflammation. Structural lesions increasingly gain importance for diagnosis and follow-up.
Active lesions remain the hallmark for assessment of inflammation in sacroiliitis. Structural lesions increasingly play a role in the diagnosis of spondyloarthritis.
回顾脊柱关节炎中骶髂关节炎活动期和结构损伤的解剖学及磁共振成像（MRI）特征的优势、局限性和新见解。
MRI在脊柱关节炎骶髂关节炎的诊断和随访中起关键作用。受累患者骶髂关节的MRI可能显示骨髓水肿、囊炎、附着点炎或滑膜炎等活动期损伤，以及侵蚀、脂肪浸润、硬化、骨质填充和强直等结构改变。骶髂关节炎在MRI上的活动期损伤对正在进行的活动性炎症的诊断和评估尤为重要。结构损伤在诊断和随访中越来越重要。
活动期损伤仍然是评估骶髂关节炎炎症的标志。结构损伤在脊柱关节炎的诊断中发挥着越来越重要的作用。
