Hi Maria

you could but they have different contrast/distortion properties, so it isn't clear to me that it is a win. I guess the easiest thing to do would be to "conform" them both with mri_convert, then try registering/averaging them.

cheers Bruce

On Thu, 1 Feb 2018, Gudbrandsen, Maria wrote:

Dear FreeSurfer Team,

Unsure whether this is the correct email for queries, apologies it not.

I am wondering if it is possible to combine data set from two different protocols with different slice numbers.

For example, (see attached screenshots):

1st - SAG ADNI GO ACC SPGR – 196 slices, 1.2 slice thickness, 1.2 slice gap and FoV: 270, Matrix: 256x256

2nd – ADNI MPRAGE – 166 slices - 1.2 slice thickness, 1.2 slice gap and FoV: 260, Matrix: 256x256

Many thanks,

Maria