You need to use the gradients extracted from the data by FSL (or freesurfer).

Ruopeng

On May 23, 2019, at 5:02 PM, Alan Francis <alandarkenergy@gmail.com> wrote:

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Hi Ruopeng -

I used Diffusion Toolkit to recon DTI data that was preprocessed using FSL. This data is from 7T scanners. I used an Angle threshold of 50. I tried various gradients from 6 - 120, but the images I am getting on trackvis are weird. I have attached a screenshot.

Can you please shed some light on this?

Thank you,

Alan


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Alan N. Francis PhD
Instructor in Psychiatry
Harvard Medical School

Louis V. Gerstner III scholar
Martinos Center for Biomedical Imaging
Massachusetts General Hospital
149, 13th street, Charlestown, MA
                                                                                                          
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