Abstract #2886
Diffusion-Weighted Matched-phase Adiabatic Spin Echo (DW-MASE) Sequence for Ultrahigh Field Brain Diffusion-Weighted Imaging
Hadrien Dyvorne 1 , Rafael O'Halloran 1 , and Priti Balchandani 1
1
Radiology, Icahn School of Medicine at Mount
Sinai, New York, NY, United States
We present a novel Diffusion-Weighted Matched-phase Spin
Echo acquisition (DW-MASE) that uses semi-adiabatic
radiofrequency pulses to provide increased robustness to
B1 field inhomogeneity for ultrahigh field brain
diffusion-weighted imaging. We show that DW-MASE leads
to increased signal in regions suffering from
inhomogeneous B1 when compared to conventional
single-refocused diffusion. The impact of improved data
quality on diffusion metrics is shown in a high
resolution white matter tractography example acquired in
a healthy volunteer.
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