Abstract #1369

T2* quantification of the cranial bone using ultra-short echo-time (UTE) imaging

Benedikt Herzau¹, Martin Krämer¹, and Jürgen R Reichenbach^1,2,3,4

¹Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University Jena, Jena, Germany, ²Michael Stifel Center for Data-driven and Simulation Science Jena, Friedrich Schiller University Jena, Jena, Germany, ³Abbe School of Photonics, Friedrich Schiller University Jena, Jena, Germany, ⁴Center of Medical Optics and Photonics, Friedrich Schiller University Jena, Jena, Germany

Quantification of T₂^* of the human cranial bone was performed by using high resolution multi-echo ultra-short echo time (UTE) imaging. Due to the extracted different short T₂^* values across the skull, it became possible to identify and differentiate the three-layer structure of the cranial bone consisting of the two compact bone layers lamina externa and lamina interna as well as the spongy interlayer diploe. Significant differences between the spongy interlayer and the two compact layers were obtained as regards their respective T₂^* relaxation times.

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