Hi Roberto,

most of our stuff only works on the T1 (i.e. option 1). In general the T2/PD is impossible to register accurately to the T1, which is why we haven't used it in the past. We have some new sequences developed by Andre van der Kouwe that resolve this problem, but they aren't widely used yet.

cheers, Bruce

On Mon, 3 Dec 2007, Roberto Roiz Ssantiáñez wrote:

Hello all, I’m a new user of FreeSurfer. We would like to start processing a large number of the scans. We have acquired three different sequences using a 1.5T GE scanner (a three dimensional T1-weighted SPGR sequence, and two dimensional PD and T2 sequences). We have already processed those sequences using BRAINS2, and we have obtained a segmented image. I was wondering which sequence would fit best with FreeSurfer:

1. The T1-weighted SPGR sequence.

2. The T1-weighted SPGR sequence and the PD sequence together.

3. The segmented image obtained using BRAINS2.

Thanks a lot

Roberto Roiz

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