Department of Radiology, Ghent University Hospital, Ghent, Belgium.
Curr Opin Rheumatol. 2022 Jul 1;34(4):187-194. doi: 10.1097/BOR.0000000000000871. Epub 2022 Jun 9.
Imaging of the sacroiliac joints is one of the cornerstones in the diagnosis and monitoring of axial spondyloarthritis. We aim to present an overview of the emerging imaging techniques for sacroiliac joint assessment and provide an insight into their relevant benefits and pitfalls.
Evaluation of structural and active inflammatory lesions in sacroiliitis are both important for understanding the disease process. Dual-energy computed tomography (CT) can detect inflammatory bone marrow edema in the sacroiliac joints and provides an alternative for magnetic resonance imaging (MRI). Three-dimensional gradient echo sequences improve the visualization of erosions on MRI. Susceptibility weighted MRI and deep learning-based synthetic CT are innovative MRI techniques that allow for generating 'CT-like' images and better depict osseous structural lesions than routine MRI sequences.
New imaging innovations and developments result in significant improvements in the imaging of spondyloarthritis. Advanced MRI techniques enhance its potential for the accurate detection of structural and active inflammatory lesions of sacroiliitis in one single imaging session.
骶髂关节影像学检查是诊断和监测中轴型脊柱关节炎的基石之一。本综述旨在介绍新兴的骶髂关节评估影像学技术，并深入探讨其相关的优势和不足。
评估骶髂关节炎的结构和活动性炎症病变对于了解疾病进程都很重要。双能 CT 能在骶髂关节中检测到炎性骨髓水肿，并为磁共振成像（MRI）提供了一种替代方法。三维梯度回波序列可提高 MRI 上侵蚀的可视化效果。磁共振敏感加权成像和基于深度学习的合成 CT 是创新的 MRI 技术，可生成“类似 CT”的图像，比常规 MRI 序列更能清晰地描绘骨结构病变。
新的成像创新和发展使得脊柱关节炎的成像有了显著的改善。高级 MRI 技术增强了在单次成像检查中准确检测骶髂关节炎结构和活动性炎症病变的潜力。
