Abstract #0999
Diffusion-Weighted SSFP at 7T
Rafael O'Halloran 1 , Eric Aboussouan 1 , Murat Aksoy 1 , Eric Peterson 1 , and Roland Bammer 1
1
Radiology, Stanford University, Stanford,
CA, United States
Diffusion-weighted MRI at 7T using conventional
techniques is challenging due to short T2 relaxation
times, high SAR, and increased susceptibility artifacts
compared to lower field strengths. The
diffusion-weighted steady state free precession sequence
(DW-SSFP) appears well-suited as a means to address
these challenges at 7T due to decreases T2-sensitivity,
lower SAR burden, and potentially lower sensitivity to
susceptibility artifacts as compared to
spin-echo-prepared, diffusion-weighted EPI. In this work
we compare EPI images acquired at 3T to DW-SSFP images
acquired at 3T and 7T in 2 healthy human subjects.
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