Abstract #5108

DUDE: Diffusion tensor imaging with Ultra-short echo time Double Echo steady state – a proof of concept

Stefan Sommer^1,2,3, Constantin von Deuster^1,2,3, Tom Hilbert^3,4,5, and Daniel Nanz²

¹Siemens Healthineers International AG, Zurich, Switzerland, ²Swiss Center for Musculoskeletal Imaging (SCMI), Balgrist Campus, Zurich, Switzerland, ³Advanced Clinical Imaging Technology (ACIT), Siemens Healthineers International AG, Lausanne, Switzerland, ⁴Department of Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland, ⁵LTS5, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland

Synopsis

Keywords: Data Acquisition, Pulse Sequence Design, DESS, UTE, UTE-DESS, DW-DESS, DW-UTE-DESS, ZTE

The quality of echo-planar diffusion images can suffer from severe distortions and signal dropouts, especially in regions with high susceptibility gradients and rapidly decaying (short T2*) signal. To overcome these problems, we implemented a diffusion sensitive UTE-DESS sequence. The acquisition along six distinct diffusion directions allows for fitting of a diffusion tensor. We show the feasibility of Diffusion tensor imaging with Ultra-short echo time Double Echo steady state (DUDE) at 3T and present preliminary results in the brain of a healthy volunteer.

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