Abstract #5036
Evaluation of High Resolution Diffusion MRI on the Next-Generation 7T scanner
An T Vu1,2, Alexander JS Beckett3,4, Salvatore T Torrisi3,4, Sinyeob Ahn5, Michael Koehler6, Peter Dietz6, and David A Feinberg3,4
1Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, United States, 2Radiology, San Francisco Veteran Affairs Health Care System, San Francisco, CA, United States, 3Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA, United States, 4Advanced MRI Technologies, Sebastopol, CA, United States, 5Siemens Medical Solutions USA, Inc., Melvern, PA, United States, 6Siemens Healthcare, Erlangen, Germany
Synopsis
The newly developed head gradient (200 mT/m Gmax, 900 T/m/s SR) on the new NexGen 7T system provides many potential benefits for high-resolution diffusion imaging. Faster, stronger gradients can significantly reduce diffusion encoding times and TE for up to a 3-fold improvement SNR while also reducing TR and total scan time. We demonstrate these benefits in high resolution diffusion imaging applications with b-values of up to 10,000 s/mm2 at 7T.
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