Hi Dianne,
You might also want to check out the C2P route for the multi-band
accelerated EPI sequence available here:
http://www.cmrr.umn.edu/multiband/
cheers,
-MH
--
Michael Harms, Ph.D.
-----------------------------------------------------------
Conte Center for the Neuroscience of Mental Disorders
Washington University School of Medicine
Department of Psychiatry, Box 8134
660 South Euclid Ave. Tel: 314-747-6173
St. Louis, MO 63110 Email: [log in to unmask]
On 2/11/13 3:58 PM, "Mark Pinsk" <[log in to unmask]> wrote:
>Hi Dianne,
>
>We haven't upgraded to VD13 yet, but we're collecting nice 256-direction
>DTI data on our Skyra. What you choose as a protocol will depend on how
>much scan time you want to devote to DTI and how for long your subject
>population is willing to be still.
>
>We are devoting 1.5 hrs for data collection, and we collect four 256-dir
>datasets in that time slot using a slice-accelerated diffusion WIP
>sequence provided by Siemens. Two of the four datasets are collected in
>opposing phase encode directions to model susceptibility-induced
>distortions with the new topup tool in FSL5. If you don't have that WIP
>sequence, you can collect two 256-dir datasets in 1.5 hours. Our
>parameters are fairly standard (2mm voxels, 256mm FOV, 128 matrix, 62
>slices, 4400ms TR, 95ms TE, b=0,1000, 2X GRAPPA).
>
>I believe with VD13, you have the option to implement a custom gradient
>table, so you could also think about trying more advanced things like
>multi-shell acquisitions if you have the expertise in your group to
>pursue that.
>
>Best,
>Mark
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