[Freesurfer] testing FS installation - apparent cursor RAS coordinate mismatch?

2017-06-08 Thread Antonio Algaze Beato
Hello, I just installed FS 6 (mac OS) and followed Examples 1, 2, 3 and 4 under the "Test your FreeSurfer Installation" section here: https://surfer.nmr.mgh.harvard.edu/fswiki/DownloadAndInstall I am getting a very different view of bert's brain when the cursor RAS coordinates are made to coincid

[Freesurfer] -nuiterations and -norm3diters under FreeSurfer 6.0

2017-08-17 Thread Antonio Algaze Beato
Hi, I have a question regarding -nuiterations and -norm3diters. I would like to get a feel for the options available for fine-tuning the intensity normalization in FreeSurfer 6.0. I've seen mention of -nuiterations on some posts. Is this still an option in FreeSurfer 6.0? The reason I ask is bec

[Freesurfer] sequence advice for GE 750 & 8-channel coil

2014-10-03 Thread Antonio Algaze Beato
Dear Freesurfer users, Greetings from Puerto Rico. I am new to FS and would appreciate it very much if you could share some suggestions on appropriate parameters for a GE 750 3T using an 8-channel coil and running system software v. 23.1. I searched the list for these, but could not find anything

Re: [Freesurfer] sequence advice for GE 750 & 8-channel coil

2014-10-08 Thread Antonio Algaze Beato
Hello Lee - thanks so much for your response. I looked into the document you referred me to and found a section on GE protocols here (page 3): http://martinos.org/~andre/FreeSurfer_recommended_morphometry_protocols.pdf I would appreciate your input on a few details. First, the document indicates

[Freesurfer] ADNI protocol anisotropic resolution

2014-11-19 Thread Antonio Algaze Beato
Dear group, I am new to FS and the ADNI protocol, thus my question: is it ok to have a slice thickness of 1.2 mm and in-plane resolution of 1.05 mm for cortical segmentation and brain volume analyses? This seems to be a sequence suggested on the FreeSurferWiki (I am using a GE750 3T). Doesn't the

Re: [Freesurfer] ADNI protocol anisotropic resolution

2014-11-19 Thread Antonio Algaze Beato
... or, perhaps it is meant to speed things up and and cover the whole brain a bit quicker? Cheers, Antonio On Wednesday, November 19, 2014, Antonio Algaze Beato < antonio.alg...@upr.edu> wrote: > Dear group, > > I am new to FS and the ADNI protocol, thus my question: is it ok to