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Hi Rosalia

Yes they are. The cardiac-gated acquisition makes sure to avoid the heart beat and potential artifacts arising from that, particularly at more inferior regions. On the other hand, it can take considerably longer to acquire. Both datasets are fine to use with FSL tools.

Cheers
Stam
  
 
On 3 Aug 2016, at 14:34, Rosalia Dacosta Aguayo <[log in to unmask]> wrote:

Dear FSL experts,

I have gated and non gated DTI acquisitions (two for every subjects) with the same number of directions.

Question: I do not know the difference between these two kinds of acquisitions and, what is more, if they are compatible for pre-processing steps till arrive to probtrack.

Thank you in advance for your kind help.

Rosalía