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Abstract #0060

Fast 3D acquisition of wave displacement in vivo for low-field MRE: application in the human forearm

Maksym Yushchenko1, Mathieu Sarracanie1, and Najat Salameh1
1Center for Adaptable MRI Technology (AMT Center), Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland


We describe a method to capture wave displacement in vivo in the human forearm for magnetic resonance elastography (MRE) at low magnetic field (0.1 T). Taking advantage of the inherently low spatial frequency nature of propagating waves, the proposed method samples a very low fraction (10%) of the 3D k-space, combined with efficient motion-encoding, processing schemes, and an optimized RF quadrature volume coil. For the first time, acquisitions are demonstrated in humans at a field below 1.5 T within only a few minutes (1-3 min).

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