Abstract #2370

High Resolution Radial 3D Ultra-Short Echo Time Imaging in vivo

Karl-Heinz Herrmann¹, Martin Krmer¹, Martin Stenzel², Hans-Joachim Mentzel², Jrgen R. Reichenbach¹

¹Medical Physics Group, Institute of Diagnostic and Interventional Radiology I, Jena University Hospital - Friedrich Schiller University Jena, Jena, Germany; ²Pediatric Radiology, Institute of Diagnostic and Interventional Radiology I, Jena University Hospital - Friedrich Schiller University Jena, Jena, Germany

Ultra-short echo time imaging (UTE) allows visualization of structures with very short T2 relaxation times. Commonly, slice selective 2D double-half RF-pulse UTE with radial readouts is used. However, 3D radial center-out trajectories (spiky ball) have several advantages: Short, hard excitation pulses lead to extremely short echo times, oversampling is possible in all directions avoiding foldover artifacts, and extreme over-sampling of k-space renders the acquisition very robust against motion with excellent SNR. We present 3D UTE in vivo images with excellent resolution and display of anatomical details.