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Abstract #2785

Assessment of  Ankylosing Spondylitis Activity with Intravoxel Incoherent Motion Diffusion Weighted and Dynamic Contrast-Enhanced MR Imaging

Mengyue Wang1, Wentao Wang2, Lei Xu1, Liang Qi1, and Yuefen Zou1
1Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China, 2The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China

Effective diagnosis of ankylosing spondylitis (AS) activity plays an important role for clinical treatment and prognosis. In our study, we used intravoxel incoherent motion (IVIM) and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) to differentiate the active and chronic stage of AS. As a result, we found that Dslow, Ktrans and Ve had a high diagnostic sensitivity and specificity.

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