Meeting Banner
Abstract #0772

Signal-model-based water-fat separation in Zero Echo Time (ZTE) MRI

Romain Nicolas Froidevaux1, Markus Weiger1, Po-Jui LU2, and Klaas Paul Pruessmann1

1University and ETH Zurich, Z├╝rich, Switzerland, 2ETH Zurich, Zurich, Switzerland

The separation of water and fat in zero echo time (ZTE) imaging is challenging for several reasons: First, echo-based signal models are violated for fast-relaxing spins and require the use of loud sequences. Second, frequency selective preparation pulses produce large SAR and are inefficient on short-T2 compounds. Finally the off-resonance induced phase vanishes at TE = 0. In this work, we introduce the principles of a technique that allows water-fat separation for a single ZTE acquisition and demonstrate it potential and limits with phantom and in-vitro experiments.

This abstract and the presentation materials are available to members only; a login is required.

Join Here