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Abstract #3428

B-value influence on IVIM MRI for juvenile idiopathic arthritis in the knee

Kilian Stumpf1, Anna-Katinka Bracher2, Thomas Hüfken1, Britta Huch2, Meinrad Beer2, Henning Neubauer2, and Volker Rasche1
1Department of Internal Medicine II, Ulm University Medical Center, Ulm, Germany, 2Department of Diagnostic and Interventional Radiology, Ulm University Medical Center, Ulm, Germany

Intravoxel incoherent motion imaging allows the quantification of diffusion and pseudo-perfusion in tissues and can be used as an alternative to conventional T1-weighted scans that require the use of contrast agents. Its benefits for diagnosing juvenile idiopathic arthritis(JIA) in the knee has previously be demonstrated, but usually requires multi-b-value DWI scans with long scan times. In this work we investigate the influence of different b-value combinations on the calculated diffusion and perfusion fraction values and explore the possibility for IVIM MRI of JIA with fewer b-values and shorter scan times.

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