Re: [Freesurfer] WM/Pial surfs Problem with SPGRs from 3T GE

2012-07-27 Thread Thomas Fink
Hey experts, Thank you very much for your advice! So I guess my best guess would be to use recon-all with -nuintensitycor-3T and add an expert option file for -b 20 and -n 5. These flags belong to the mri_normalize binary? Best regards Thomas On Thu, Jul 26, 2012 at 4:12 PM, Bruce Fischl

Re: [Freesurfer] WM/Pial surfs Problem with SPGRs from 3T GE

2012-07-26 Thread Bruce Fischl
Hi Mehul it's really all empirical. You just don't want the intensity normalization to erode the gray/white boundary. cheers Bruce On Wed, 25 Jul 2012, Mehul Sampat wrote: Hi Thomas,  The following message posted by Michael Harms

Re: [Freesurfer] WM/Pial surfs Problem with SPGRs from 3T GE

2012-07-26 Thread Bruce Fischl
Hi Michael that's a good thought. Let me talk to Nick, and see if we should default to it and have a 1.5T flag instead Bruce On Thu, 26 Jul 2012, Michael Waskom wrote: Yes, that flag still works in 5.1. Bruce, think these parameters could be default in 5.2?  It's a long extra flag (that

Re: [Freesurfer] WM/Pial surfs Problem with SPGRs from 3T GE

2012-07-25 Thread Mehul Sampat
Hi Thomas, The following message posted by Michael Harms http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg20991.html has some very useful options. I recently noticed that they help us with a very similar problem... Also, I recall that for FS v5.0 there was a flag -nuintensitycor-3T