Meeting Banner
Abstract #1378

Hadamard Encoding for Magnetic Resonance Elastography

Christian Guenthner1, Jurgen H Runge2,3, Ralph Sinkus2, and Sebastian Kozerke1

1Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland, 2Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom, 3Department of Radiology, Academic Medical Center, Amsterdam, Netherlands

We propose the use of Hadamard encoding for Magnetic Resonance Elastography (MRE) of the full displacement vector field (4D-MRE). To this end, motion is encoded along the four diagonals of the regular cube spanned by the main gradient axes. This allows for a factor four higher phase accumulation compared to classical, unbalanced four-point encoding within the same acquisition time. In this abstract, we demonstrate the increase in phase-to-noise ratio for a gel phantom and show the direct benefit of using Hadamard encoding in-vivo to capture high-quality wave displacement maps in the brain.

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

Join Here