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 Reichenbach^1,4,5,6

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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