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Abstract #1491

T1 and T2* mapping of sheep forelimb aponeuroses with high-resolution ultra-short echo time (UTE) imaging

Marta B. Maggioni1, Martin Krämer1,2, Heiko Stark3, and Jürgen R. Reichenbach1,2,4,5,6
1Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich-Schiller-University, Jena, Germany, 2Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University, Jena, Germany, 3Institute of Zoology and Evolutionary Research with Phyletic Museum, Friedrich-Schiller-University, Jena, Germany, 4Michael Stifel Center for Data-driven and Simulation Science Jena, Friedrich Schiller University, Jena, Germany, 5Abbe School of Photonics, Friedrich Schiller University, Jena, Germany, 6Center of Medical Optics and Photonics, Friedrich Schiller University, Jena, Germany

Synopsis

Aponeuroses play a crucial role in the transmission of mechanical load in the muscle-tendon unit. Their contribution is, however, still under debate and they are difficult to image with MRI due to their short T2* decay. In this work, we use high-resolution 3D ultra-short echo time imaging with 50 echoes to investigate the T2* decay of the aponeurosis and build a three-component model to quantify the T2* values. Additionally, we quantified T1 using variable flip angle imaging. To our knowledge, this work is the first to report T1 and T2* values of the aponeurosis.

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