ĐẶC ĐIỂM X QUANG VÀ CỘNG HƯỞNG TỪ KHỚP CÙNG CHẬU TRONG BỆNH LÝ VIÊM KHỚP CỘT SỐNG THỂ TRỤC

Abstract

Objectives: To evaluate the imaging features and the roles of radiography and magnetic resonance imaging (MRI) of the sacroiliac joints in diagnosing axial spondyloarthritis (AxSpA). Subjects and Methods: A cross-sectional, descriptive study was conducted on 53 patients diagnosed with AxSpA according to the 2009 ASAS criteria, at the University Medical Center at Ho Chi Minh City from November 2023 to May 2024. Clinical features, laboratory tests, sacroiliac joint X-rays and MRI findings were analyzed. Results: Bone marrow edema was the most common acute inflammatory lesion on MRI (67.9%), predominantly affecting distributed in the main body, middle third, and lower third of the sacroiliac joints, mainly on the iliac side. Common chronic structural lesions included bone erosion (83.3%) and sclerosis (63.3%). MRI identified an additional 16.9% AxSpA cases with negative X-ray and HLA-B27 results. Conclusion: When clinical suspicion of AxSpA arises, sacroiliac joints MRI is essential. A comprehensive assessment of both acute inflammatory and chronic structural lesions is necessary, with detailed descriptions of lesion locations on various planes during MRI image analysis for this condition.