[Freesurfer] Watershed treshold and amygdala volume

2011-03-20 Thread Hendrikx, A.A.E.M. (Anne)
Dear all, We, members from the Donders Institute Nijmegen (The Netherlands), are using FreeSurfer to calculate amygdala volumes on MRI's. After a couple of tests we are suprised about the following: We are wondering why the amygdala volume changes, after changing the watershed threshold. Besid

Re: [Freesurfer] Watershed treshold and amygdala volume

2011-03-20 Thread Bruce Fischl
Hi Anne I suspect that if you removed enough manually it would change. The atlas-based registration will change if the skull-stripping changes significantly, which will change the resulting segmentation. cheers Bruce On Sun, 20 Mar 2011, Hendrikx, A.A.E.M. (Anne) wrote: > Dear all, > > We,

[Freesurfer] recon-all parallel execution of hemi stages

2011-03-20 Thread Satrajit Ghosh
it seems we could run lh/rh processing stages of recon-all in parallel. however, i think they will write to the same log files. is there a way to specify a different log-file prefix? are there any other common files that these hemisphere based operations write to? concurrent reading i'm assuming i

Re: [Freesurfer] using multiple processors with freesurfer?

2011-03-20 Thread Knut J Bjuland
HI Is it possible to compile Freesurfer with openmpi. Will there be plans to add openmpi or another for for multicore support. On 03/17/2011 09:45 PM, jim kroger wrote: Hello, I just downloaded freesurfer and am processing some of my data. I am using an 8 core machine, but I'm guessing free

Re: [Freesurfer] using multiple processors with freesurfer?

2011-03-20 Thread Bruce Fischl
Hi Jim we've been focusing on CUDA instead, and we do have a released CUDA version. cheers Bruce On Sun, 20 Mar 2011, Knut J Bjuland wrote: > HI > > Is it possible to compile Freesurfer with openmpi. Will there be plans to add > openmpi or another for for multicore support. > > > > On 03/17/20