Dear FS experts,

I'm interested in doing DTI analysis, using FS.

Do I need to have functional data (feat) and then do I need to register the anatomical data on the functional one?

My MRI data contains the following folders: 3DAx_T1, Ax_Flair, Ax_T2PD, DTI_15, DTI_30. I am not sure for a DTI /FSL analysis what data should I use.

1).Do I need to use the DTI data (DTI_15, DTI_30) and what steps should I follow in order to run a DTI/FSL data analysis for my subjects versus controls?

2).Do I need to run the dt_recon? In this case my input should be the dicom images from a DTI (DTI_15 or DTI_30) folder?

3) When I need to check the registration where I get the lowb.nii?

tkregister2 --mov dti/lowb.nii --reg dti/register.dat \

--surf orig --tag

4) Or, should I use trac-all on the DTI_15 or DTI_30 data?

5) Do I need to run reg-feat2anat to first analyze my data with FEAT (No Smoothing )as in the example posted online:

reg-feat2anat –featdir fbert1.feat –subject bert

6) From where fbert1.feat is coming/how was obtained?

Sorry for asking so many/silly questions.

I will be greatly appreciate any help/directions/suggestions.
Antonella