[Freesurfer] Average subject

Hi,   When the average subject is built, is it used for the analyses or only to visualize? I want to understand how freesurfer makes the average subject. Thanks, Kelly Veja quais são os assuntos do momento no Yahoo! +Buscados http://br.maisbuscados.yahoo.co

Re: [Freesurfer] Doubt pial segmentation

You do not need to manually separate the cerebellum from the cortex if the pial surface is accurately following the cortex (as it's doing in the pictures you sent). In fact, deleting too much cerebellum might cause other problems. Do you have any other reason why you want to separate them? All

[Freesurfer] mri_label2vol aliasing problem

Hi, I'm trying to use mri_label2voxel to produce an image of a segmented region in the original image voxel space and am seeing black lines through the output region, these are oriented parallel to the voxel axes. In the attached image you can see three of them: two parallel horizontal lines

Re: [Freesurfer] Average subject

Hi Kelly, the average subject is generated by using the spherical transform to compute vertex correspondence, then each vertex is assigned the average tal coordinate of those vertices. cheers, Bruce On Wed, 14 Jan 2009, Kelly Silva wrote: Hi,   When the average subject is built, is it use

RE: [Freesurfer] reg-feat2anat failed

Hello, Dr. Greve, I followed the steps in the tkregister2 --help: converted both example_func and orig.mgz to .img of ANALYZE format and ran the tkregister2 use -- fsl example_func2highres.mat of fsl/FEAT. The two brains are in the different views (i.e., axial view of example_func overlay on the

[Freesurfer] mri_convert failure

Hi, I'm finding that mri_convert produces a read error when trying to convert some short analyze files to mgz, invoked as the following: mri_convert -it analyze -i `pwd`/reslice/00125-003-1.img -o reslice/mni.mgz The output contains (the dimensions shown are correct): ERROR: premature end of f

Re: [Freesurfer] mri_convert failure

Hi Ian, do you have a .hdr file for both of them? A .mat? cheers, Bruce On Wed, 14 Jan 2009, Ian Malone wrote: Hi, I'm finding that mri_convert produces a read error when trying to convert some short analyze files to mgz, invoked as the following: mri_convert -it analyze -i `pwd`/reslice/

[Freesurfer] tksurfer error

Hello, I've run into a problem when trying to view surfaces. tkmedit works fine but tksurfer gives an error saying "Window type not found". I see that others have had this problem in the past but the solution didn't work, i.e. setenv doublebufferflag 1 tksurfer ... Also see: http://www.mail-arc

Re: [Freesurfer] mri_convert failure

Can you verify that the file is the right size? Ian Malone wrote: Hi, I'm finding that mri_convert produces a read error when trying to convert some short analyze files to mgz, invoked as the following: mri_convert -it analyze -i `pwd`/reslice/00125-003-1.img -o reslice/mni.mgz The output