Re: [Freesurfer] fsaverage vertex index to talairach

2013-06-24 Thread Douglas Greve
Hi Cesar, you can run mris_convert lh.white lh.white.asc to convert to ascii. Each vertex is in MNI305 space. Is that good enough? There is a matlab script by Matthew Brett that attempts to convert to Tal coords. You could easily convert to MNI152 as well. doug On 6/24/13 4:34 PM, Cesar

Re: [Freesurfer] Fwd: DTI questions

2013-06-24 Thread Anastasia Yendiki
Hi Rotem - No problem. Were these scans by any chance acquired with a coronal slice prescription? In the axial views that you sent, the artifact that you're pointing to looks like misalignment between consecutive coronal slices, which could be due to head motion. a.y On Tue, 25 Jun 2013, Ro

Re: [Freesurfer] Fwd: DTI questions

2013-06-24 Thread Anastasia Yendiki
Sorry, can't open the image. On Sun, 23 Jun 2013, Rotem Saar wrote: Hi there, Long time:). Well I wrote to the list several times regarding high FA values I got when performing DTI analysis. Today we know that the problem was an additional direction (we had 17 directions instead of 16 - we us

Re: [Freesurfer] Multiple inputs into recon-all -i

2013-06-24 Thread ye tian
Dear Bruce, Thank you very much! Sincerely, Ye On Mon, Jun 24, 2013 at 7:32 PM, Bruce Fischl wrote: > Hi Ye, > > you would never have two files, as each file represents one image, or > slice from a sequence. So you might have two sequences of files, say > Barba001-1.img, Barba001-2.img... Bar

Re: [Freesurfer] Multiple inputs into recon-all -i

2013-06-24 Thread Bruce Fischl
Hi Ye, you would never have two files, as each file represents one image, or slice from a sequence. So you might have two sequences of files, say Barba001-1.img, Barba001-2.img... Barba001-256.ima, and Baraba002-1.ima, Barba002-2.ima Barba002-256.ima. Then you would use -i twice, once wit

Re: [Freesurfer] Multiple inputs into recon-all -i

2013-06-24 Thread ye tian
Dear Bruce, Thank you very much for your suggestion, but I am afraid that I still don't quite understand you. In order to make it simple, suppose I have two files, Barba001.IMA and Barba002.IMA, coming directly from the scanner. Now if I enter *recon-all -s Barba -i Barba001.IMA* from the comm

Re: [Freesurfer] Multiple inputs into recon-all -i

2013-06-24 Thread Bruce Fischl
Hi Ye you only need to give it a single file from each run and it will find the rest. The only time you use -i more than once is if you acquired more than 1 T1-weighted volume. Definitely don't give it all the files that make up the same volume cheers Bruce On Mon, 24 Jun 2013, ye tian wrote

[Freesurfer] Multiple inputs into recon-all -i

2013-06-24 Thread ye tian
Dear David, I wonder whether there is a short cut for recon-all -s Barbara -i /path_to_data/scan1.dicom -i /path_to_data/scan2.dicom ... -i /path_to_data/scan100.dicom Recon-all -i takes only a single file as an input. A typical user, however, has hundreds of files for a particular subject. For e

[Freesurfer] HCP Releases Second Quarter of Brain Connectivity Data

2013-06-24 Thread Jennifer Elam
June 13, 2013 (repost to Freesurfer list June 24, 2013) The Human Connectome Project (HCP) WU-Minn consortium is pleased to announce our second quarterly (Q2) release of HCP image and behavioral data. What’s in the HCP Q2 data release? The Q2 data include multimodal MRI and behavioral data collec

Re: [Freesurfer] Using the T2 pial flag for pial refinement

2013-06-24 Thread Bruce Fischl
Hi Mike the 3.5-4mm thickness probably makes them not usable since it means opposing banks of a sulcus will be in the same voxel pretty frequently sorry Bruce On Mon, 24 Jun 2013, Michael Kranz wrote: Hi all, I'm having trouble determining whether or not to use our T2 images for the new p

[Freesurfer] Using the T2 pial flag for pial refinement

2013-06-24 Thread Michael Kranz
Hi all, I'm having trouble determining whether or not to use our T2 images for the new pial refinement feature. *Most importantly, I'm wondering if our T2 image parameters are sufficient for the T2 pial refinement. The parameters of our T2 images are as follows:* T2 TSE overlay with a voxel size

Re: [Freesurfer] Question about running kvlQuantifyHippocampalSubfieldSegmentations.sh

2013-06-24 Thread Juan Eugenio Iglesias
Dear Zoe, have you checked whether all directories within your subject directory correspond to subjects which have been reconed with the -hippo-subfields flag? Cheers, /Eugenio On 06/24/2013 04:00 PM, Yang, Zoe wrote: Hi all, I am getting error messages while running kvlQuantifyHippocampal

[Freesurfer] fsaverage vertex index to talairach

2013-06-24 Thread Cesar Echavarria
Hello, Anyone know of a fast way to get the talairach coordinates of a vertex index in fsaverage. A function or script is best since I want to do this for a large number of vertices. Thank you for any help you guys can provide. Cesar ___ Freesurfer mail

Re: [Freesurfer] infant .tiff templates

2013-06-24 Thread Mark Plantz
Hi Bruce, So technically speaking I guess I have three different brain atlases for neonates, 1 yr olds, and 2 yr olds. Each atlas contains a set of 3D images made up of the intensity model, tissue probability maps, and anatomical parcellation map. I obtained these from a study done by UNC

Re: [Freesurfer] infant .tiff templates

2013-06-24 Thread Bruce Fischl
Hi Mark can you clarify what you mean? What template are you referring to? Bruec On Mon, 24 Jun 2013, Mark Plantz wrote: Hello freesurfers,       I am currently attempting to create my own .tiff templates for a series of infant fMRI's (neonates, 1 yr olds, and 2 yr olds). I currently have th

[Freesurfer] Question about running kvlQuantifyHippocampalSubfieldSegmentations.sh

2013-06-24 Thread Yang, Zoe
Hi all, I am getting error messages while running kvlQuantifyHippocampalSubfieldSegmentations.sh, similar to the error mentioned in an earlier email (http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg24430.html). We did use the -hippo-subfields flag for all of our subjects first, an

[Freesurfer] infant .tiff templates

2013-06-24 Thread Mark Plantz
Hello freesurfers, I am currently attempting to create my own .tiff templates for a series of infant fMRI's (neonates, 1 yr olds, and 2 yr olds). I currently have the templates in .nii.gz, .mgz, and .img/.hdr formats. Is there any easy way to convert from one of these formats to a .tiff ima

[Freesurfer] [FreeSurfer] Freeview: Invalid drawable

2013-06-24 Thread ye tian
Dear Koen, Freeview returns 8 lines of the error message "invalid drawable" whenever executed. The messages are as follows 2013-06-24 14:24:57.930 Freeview[1937:303] invalid drawable 2013-06-24 14:24:57.931 Freeview[1937:303] invalid drawable 2013-06-24 14:24:57.944 Freeview[1937:303] invalid dra

[Freesurfer] retinotopy betas

2013-06-24 Thread dgw
Hi, I am examining the affect a metal artifact has on fMRI data, and I am using Eccentricity mapping with the retinotopy analysis in FSFast. I was recently asked to switch from examining the difference in the fsig to examining the difference in the betas. I opened up beta.nii.gz and I can see that

[Freesurfer] Is there any way of finding out RESEL number in the GLM output?

2013-06-24 Thread Glen Lee
Hello Freesurfer users, I'd hope to know the RESEL number in my group GLM analysis data. I can calculate the number of vertices and also see the fwhm.dat in the ouput GLM folder, but I wonder if there is anyway of finding out RESEL size if freesurfer also provides that info like SPM does. -Glen ___

Re: [Freesurfer] Help with QDEC error

2013-06-24 Thread Manish Dalwani
Hi Nick and Doug,  Can you suggest an alternative way if QDEC is unable to handle a single group?   I would like to run these analyses to address reviewers comments.   Best, Manish From: Douglas Greve To: Manish Dalwani Cc: "freesurfer@nmr.mgh.harvard.edu"

[Freesurfer] mri_glimfit paired analysis

2013-06-24 Thread Gayane Aghakhanyan
Dear FreeSurfers I'm using Freesurfer 5.1 on Ubuntu 12.04 LTS. Currently running paired analysis as described here https://surfer.nmr.mgh.harvard.edu/fswiki/PairedAnalysis After mri_glmfit \ --glmdir lh.paired-diff \ --y lh.paired-diff.thickness.sm05.mgh \ --fsgd paired-diff.fsgd \ --C mean.

Re: [Freesurfer] lme issues + failure to converge

2013-06-24 Thread jorge luis
Hi Cathy If you only have three groups in your data (Control subjects, High risk patients, Ill patients) then you should drop the “Controls versus all others and controls*time interaction” terms from your design matrix. Otherwise it is ill-conditioned. One way to check your design matrix is b

[Freesurfer] problem with surface area regression

2013-06-24 Thread wen.zhang55
Dear Freesurfer, I have checked the mail list, none could answer my problem. I added up the value of all vertxes in the .area or .area.pial files, find that brain size did not contribute much to that vertex-sum. However, some experiment used total brain volume as a regreesion coefficien

[Freesurfer] Error for mri_glmfit contrast

2013-06-24 Thread Catherine Bois
Dear Freesurfer experts, I am currently trying to do a cortical thickness group analysis with one factor, three levels . I have run mri_preproc and mri_surf2surf, and am now trying to run mri_glmfit --y lh.group.thickness.10B.mgh --fsgd easy2.file --C contrast1.mtx --surf fsaverage lh --cort

Re: [Freesurfer] retinotopic mapping selxavg3-sess error

2013-06-24 Thread Bianca van Kemenade
Sorry for the delay. I'm new to FSL, Freesurfer, and VB, so maybe I'm doing it wrong, but I have the impression I cannot run FSL from the VB: - Typing 'fsl' yields 'fsl: Command not found'. - Checking the environment with 'echo $FSLDIR' yields 'FSLDIR: undefined variable' - Checking the path with '