Hello ENIGMA-DTI members!

Our ENIGMA collaboration on performing a GWAS meta-analysis on DTI phenotypes is about to take off!!
We greatly value your participation. Please tell us a bit about your cohort so we can better help assist you as you work through the processing and analysis protocols.

Thank you and best wishes
The ENIGMA-DTI support team
PI Name *
Your answer
PI email address *
Your answer
Cohort name *
Your answer
Names and emails of other key personnel in group
Your answer
DTI collection status *
Number of acquisition sites
(please indicate if your data were collected from multiple scanners)
Your answer
Participants imaged with DTI *
If your data includes patients, what type and how many?
(for example: 80/150 scans are of bipolar patients)
Your answer
Do you have related individuals in your dataset? *
(siblings, twins, parents, etc)
Number of participants with GWAS and DTI scans *
Your answer
Participant age range *
Your answer
Ethnicity of cohort *
please let us know the ethnicity of your cohort (if multiple ethnic groups are represented, please list them all)
Your answer
Scanner type
(i.e, Siemens, GE, etc.)
Your answer
Magnetic field strength (T)
(1.5, 3, 4 tesla)
Your answer
Number of acquisitions
(per subject at a single time point, usually 1 or 2)
Your answer
Voxel size and slice thickness of images
Your answer
Number of gradient directions and at what b-factor
(for example Ng=32 at b=1000)
Your answer
Number of b0 scans
(number of scans with no diffusion weighting)
Your answer
Have you processed the DTI images previously?
If so, please let us know how and with what software, or please list related publications.
Your answer
(don't be shy)
Your answer
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