Re: [Freesurfer] AAL labels

2012-10-23 Thread Garikoitz Lerma-Usabiaga
Hi Donald and everybody, I created AAL .mgh and .label-s in FS Colin27 space, if anybody is interested please drop me a line. best regards! Gari On Thu, Jul 12, 2012 at 11:12 PM, MCLAREN, Donald mclaren.don...@gmail.comwrote: Has anyone created an AAL label file for Freesurfer? I've done some

Re: [Freesurfer] Talairach Failure Detection

2012-10-23 Thread Bruce Fischl
Hi Daniel it looks like you have too much wrap in your image, with a significant amount of brain wrapping to the top. Nothing will work on this sorry Bruce On Tue, 23 Oct 2012, Daniel Ferreira wrote: Hi Nick, Here comes attached the tkmedit orig.mgz thanks Daniel 2012/10/22 Nick

[Freesurfer] relationship between cortical volume, cortical area and cortical thickness

2012-10-23 Thread L. Koenders
Dear Freesurfer people, We posted this question before, but maybe you missed it. We have a question regarding the relationship between cortical volume, cortical area and cortical thickness measurements derived from the parcellation stat-file. We were under the impression that the volume is

Re: [Freesurfer] relationship between cortical volume, cortical area and cortical thickness

2012-10-23 Thread Douglas N Greve
Hi Masise and Laura, yes, it is area*thickness, but area*thick is computed on a vertex-by-vertex basis, then summed over vertices. This is not the same as summing the area and multiplying it by the mean of the thickness. doug On 10/23/2012 06:52 AM, L. Koenders wrote: Dear Freesurfer people,

Re: [Freesurfer] trac-all -prep error during inter-subject registration with mri_cvs_register

2012-10-23 Thread Anastasia Yendiki
Hi Verena - Which version of freesurfer are you using? In the public release of 5.1 the CVS registration option in trac-all is disabled. a.y On Tue, 23 Oct 2012, Verena Gramse wrote: From: Verena Gramse Sent:

Re: [Freesurfer] trac-all -prep error during inter-subject registration with mri_cvs_register

2012-10-23 Thread Verena Gramse
Hi Anastasia, Ahh.. I used the regular 5.1 and pointed to our dev folder where the cvs_avg35 (and cvs_avg_inMNI152) live. So, do you recommend skipping cvs registration for now? Thanks in advance! Verena From: Anastasia Yendiki

[Freesurfer] MEMPRAGE

2012-10-23 Thread Gina Caetano
Dear FreeSurfers, I am processing MEMPRAGE images: 1) I use the RMS (of the echoes) output from the scanner 2) the echoes were converted to mgz format [memprage_echo1(to4).mgz], conformed to 256³ , 1mm isotropic, and no further processing. 3) I ran the mris_make_surfaces -dura

Re: [Freesurfer] Dealing with MS lesions

2012-10-23 Thread Julio Alberto González Torre
Hi Bruce. I know I can set the value 110 to the voxels corresponding to white matter lesions, using the FreeSurfer environment. The issue is that I have binary masks for each subject. These masks are binary files that match each subject in native space. Thus, for each subject, this mask contains

Re: [Freesurfer] Dealing with MS lesions

2012-10-23 Thread Bruce Fischl
probably the best thing to do is to fill the lesion with the average of the values on the border. That will create a minimal amount of new gradients in the image cheers Bruce On Tue, 23 Oct 2012, Julio Alberto González Torre wrote: Hi Bruce. I know I can set the value 110 to the voxels

[Freesurfer] Running gcut fails to create brainmask.gcuts.mgz

2012-10-23 Thread Vincent
I'm attempting to remove some dura which is affecting my surfaces, but upon completion of running gcut I can see no differences in my images, nor can I use tkmedit to view my T1 with brainmask.gcuts.mgz, because it says it couldn't import the segmentation volume. I looked for brainmask.gcuts.mgz

Re: [Freesurfer] Running gcut fails to create brainmask.gcuts.mgz

2012-10-23 Thread Benjamin Kay
Check your log. If gcut detects that the gcutted brain is much smaller than the original brain, it will assume that something bad has happened and it won't write brainmask.gcuts.mgz. This may be what is happening in your case. To fix this, you can adjust the watershed threshold or add something

[Freesurfer] Extract a color table from an annotation

2012-10-23 Thread Anisha Keshavan
How do I extract a color table from an annotation? Thanks, Anisha ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person

Re: [Freesurfer] Extract a color table from an annotation

2012-10-23 Thread Maritza Ebling
Anisha, You can use mris_anatomical_stats with the -c option to extract the color table from an annotation. Best, Maritza On Tue, 23 Oct 2012, Anisha Keshavan wrote: How do I extract a color table from an annotation? Thanks, Anisha ___

Re: [Freesurfer] Changes to Sub-cortical Structures after adding WM control points

2012-10-23 Thread Nick Schmansky
Mark, I've posted the recon-all that will be used in the upcoming v5.2, which contains the fix whereby control points are no longer used in the aseg, here: ftp://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/misc/allplatforms/ you can copy it to your v5.1 distro, but note i've named it

[Freesurfer] Compiling on Linux PPC

2012-10-23 Thread Tony Dale
Hi, Does anyone have any advice for compiling freesurfer on Linux powerPC architectures? I've managed to compile a 64-bit version of freesurfer on Linux PowerPC, and I'd be happy to post the documentation for the compile process I used - if I could be sure it would build usable binaries :-(

Re: [Freesurfer] Compiling on Linux PPC

2012-10-23 Thread Nick Schmansky
Tony, the powerpc is a big-endian processor, so make sure the BYTEORDER gets defined as 4321 by configure (see a Makefile). see dcm.c for code that depends on endianness and make sure the big-endian code gets compiled. i dont think the configure.in script is smart enough to setup the endian

[Freesurfer] Training-Control Group Comparison Analysis

2012-10-23 Thread Ryan
Hello everyone, I'm conducting an analysis involving a training group and a control group, where each group has a pre and a post scan. I setup the matrix file, the contrast file, and ran mri_glmfit along with mri_glmfit-sim for the cluster correction. The analysis finished revealing a

[Freesurfer] task-related functional connectivity analyses freesurfer 5.1.0

2012-10-23 Thread SHAHIN NASR
Hi, I was wondering if we can compare functional connectivity between blocks within a run as we do for BOLD signal using freesurfer. Current documentation of freesurfer is for resting state and does not consider conditions that experiment is Blocked Design. Similar question has been asked