[Freesurfer] Phillips 3T

Hi, We are planning to switch to a 3T Philips system and we would like to use FreeSurfer to process our new sequences. Although I have seen the recommendations on the web (http://www.nmr.mgh.harvard.edu/~andre/ ), I was wondering if anyone using a 3T

Re: [Freesurfer] Phillips 3T

Roberto, One thing not mentioned on the site is to make sure that the slice thickness does not exceed 1.5mm. Around 1mm^3 is ideal. Nick On Thu, 2008-01-03 at 14:24 +0100, roberto wrote: > Hi, > We are planning to switch to a 3T Philips system and we would like to > use FreeSurfer to proces

Re: [Freesurfer] eTIV Normalization Issues

Hi Jason, sulcal CSF, dura and everything else inside the skull that isn't brain. cheers, Bruce On Wed, 12 Dec 2007, Jason Reed wrote: Hi all, We want to normalize our data using eTIV and compared the eTIV values generated in aseg.stats to the total brain volume we calculate by summing: 1)

Re: [Freesurfer] eTIV Normalization Issues

Hi Jason, Interesting to compare the two approaches -- I've thought some about the issues involved in the past, so I'll add my $0.02 in the hope it might benefits others on the list as well. One conceptual potential note of caution: Because the aparc stats and aseg stats are two very different pr

[Freesurfer] mris_smooth and 'NoRandomness'

Hello, Is the 'NoRandomness' flag (and -seed flag) no longer relevant for 'mris_smooth'? That is, if I repeat mris_smooth using the same input, I always get the same output smoothed surface, which was not my expectation. Similarly, even if I explicitly chose different -seed values, the output is

Re: [Freesurfer] mris_smooth and 'NoRandomness'

Hi Mike, I don't think there's any randomness in mris_smooth that I can think of. Bruce On Wed, 12 Dec 2007, Michael Harms wrote: Hello, Is the 'NoRandomness' flag (and -seed flag) no longer relevant for 'mris_smooth'? That is, if I repeat mris_smooth using the same input, I always get th