Abstract #1474

Interleaved Spiral Sequence for MR Elastography of the Brain

Curtis L. Johnson¹, Danchin D. Chen¹, Armen A. Gharibans¹, William C. Olivero^2,3, Bradley P. Sutton^3,4, John G. Georgiadis^1,3

¹Department of Mechanical Science & Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, United States; ²Department of Neurosurgery, University of Illinois at Urbana-Champaign, Urbana, IL, United States; ³Beckman Institute for Advanced Science & Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States; ⁴Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, United States

A spin-echo sequence with interleaved spiral readouts is implemented for Magnetic Resonance Elastography (MRE) of the brain. This novel sequence allows for high-resolution acquisitions with significantly reduced scan times in order to improve subject comfort. To our knowledge, this is the first implementation of such a sequence, and its performance is demonstrated with both phantom and in vivo brain experiments. This sequence will allow for acquisition of data sets necessary for more sophisticated MRE inversion algorithms while maintaining reasonable acquisition times.