Abstract #1685
Simultaneous Acquisition of the 3D Displacement Vector in Magnetic Resonance Elastography of the In Vivo Human Brain
Dieter Klatt 1 , Curtis L. Johnson 2 , Temel K. Yasar 3 , Joseph L. Holtrop 2,4 , Bradley P. Sutton 2,4 , Thomas J. Royston 1 , and Richard L. Magin 1
1
The Richard and Loan Hill Department of
Bioengineering, The University of Illinois at Chicago,
Chicago, Illinois, United States,
2
Beckman
Institute, University of Illinois at Urbana-Champaign,
Urbana, Illinois, United States,
3
Mechanical
and Industrial Engineering, The University of Illinois
at Chicago, Chicago, Illinois, United States,
4
Bioengineering,
University of Illinois at Urbana-Champaign, Urbana,
Illinois, United States
SampLe Interval Modulation Magnetic Resonance
Elastography (SLIM-MRE) enables the simultaneous
acquisition of the 3D displacement vector through
direction-dependent shifting of motion encoding
gradients relative to the applied vibration. In this
study, we have embedded a SLIM-MRE acquisition scheme
into a multishot, variable-density spiral imaging
sequence and have determined the cerebral mechanical
properties of three volunteers. Our findings suggest
that SLIM reduces MRE scan time and allows immediate
co-registration of the three displacement components
without compromising inversion results.
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