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Abstract #1395

Time-resolved mapping of T2* in the patellar tendon during active knee flexion using multi-echo ultra-short echo-time (UTE) imaging

Martin Krämer1, Nicholas M Brisson2, Stefan Zachow3, Georg N Duda2, and Jürgen R Reichenbach1,4,5,6

1Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University Jena, Jena, Germany, 2Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité – Universitätsmedizin Berlin, Berlin, Germany, 3Zuse Institute Berlin, Berlin, Germany, 4Michael Stifel Center for Data-driven and Simulation Science Jena, Friedrich Schiller University Jena, Jena, Germany, 5Abbe School of Photonics, Friedrich Schiller University Jena, Jena, Germany, 6Center of Medical Optics and Photonics, Friedrich Schiller University Jena, Jena, Germany

To investigate the distribution of T2* in the patellar tendon, and its dependency on factors such as tendon rotation angle and tendon composition, real-time ultra-short echo-time (UTE) imaging was performed during active knee flexion. While T2* is known to depend on the magic angle, it may also be influenced by the underlying tendon structure, which changes its composition when approaching the entheses.

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