[Freesurfer] mri_convert unsupported slice timing error

2012-08-20 Thread Joshua Lee
Hi All, I tried to convert a high res T2 image using mri_convert and got this error message: nifti1Read(): unsupported slice timing pattern 5 Any advice? Complete message below: mri_convert DKA2921c_20120807_001_003_t2_ tse_hippo.img bb.nii.gz $Id: mri_convert.c,v 1.179.2.2 2011/05/16

Re: [Freesurfer] mri_convert unsupported slice timing error

2012-08-20 Thread Joshua Lee
I started over from the .dcm and I didn't encounter the error anymore. So alls well. - Josh On Sun, Aug 19, 2012 at 11:54 PM, Joshua Lee jki...@ucdavis.edu wrote: Hi All, I tried to convert a high res T2 image using mri_convert and got this error message: nifti1Read(): unsupported slice

[Freesurfer] Fwd: How TE, TI and flip angle parameters affect the images and results?

2012-08-20 Thread Daniel Ferreira
Thanks for your answers! Following your comments, I have thought to select only first two sequences, as they are the more frequent in our database and only differ on the TE parameter. We will also create balanced groups. cheers Daniel 2012/8/18 Andre van der Kouwe an...@nmr.mgh.harvard.edu

Re: [Freesurfer] Edits to aparc+aseg.mgz

2012-08-20 Thread Sarosh, Cyrus
Doug, I edited the dura from the brain.finalsurfs.mgz file using the command tkmedit (subject ID) brain.finalsurfs.mgz -aux T1.mgz -surfs and going through the necessary slices that need fixing and erase the dura. I then ran this subject with the command recon-all -subjid (subject ID)

Re: [Freesurfer] 3d Gaussian filter on volume

2012-08-20 Thread Douglas N Greve
what do you mean compute a gaussian image? doug On 08/18/2012 05:01 PM, John Papaioannou wrote: Hi Doug, Will the following compute a gaussian image? mri_fwhm --smooth-only --fwhm 2 --i brainmask.mgz --o brainmasksmoothed.mgz Thank you in advance, John ___ JohnPapaioannou Medical

Re: [Freesurfer] Projection of FMRI data onto Cortical Surface in FS5.1: interpolation method

2012-08-20 Thread Douglas N Greve
By default, it uses nearest neighbor. There is an option to use trilinear. doug On 08/19/2012 04:23 AM, Xinian Zuo wrote: Dear Dr. Greve, Hope all is well. I am writing to ask if you can give me some references or details on the interpolation method used in FS (version 5.1) cmd mri_vol2surf,

Re: [Freesurfer] Clinical DICOM files

2012-08-20 Thread Douglas N Greve
dcmunpack will convert them to whatever file format you want (don't use COR though). doug On 08/20/2012 09:51 AM, Alexandra Tanner wrote: Thanks Bruce. I see that because these are not Siemens scans I need to use the command dcmunpack instead of unpacksdcmdir, however, if the DICOM files are

Re: [Freesurfer] Clinical DICOM files

2012-08-20 Thread Alexandra Tanner
Hi Doug, Thanks! Do you know what command line I should use with dcmunpack? I can't specify the run number since I don't currently have that information for my scan, only the DICOM files. Typically when we unpack our Siemens files we use the following command line: unpacksdcmdir -src source -targ

Re: [Freesurfer] Clinical DICOM files

2012-08-20 Thread Douglas N Greve
You can look at the help (dcmupack -help) for info, but basically you run it twice. First dcmunpack -src dicomdir This will give you a list of runs, then run it specifying the runs that you want to unpack. It takes the same command line options as unpacksdcmdir doug On 08/20/2012 10:05 AM,

Re: [Freesurfer] tcsh: tailarach_avi: Command not found

2012-08-20 Thread Nick Schmansky
Fidel, I don't know why those files are missing from the Tiger ppc distribution, but i confirmed that indeed they are. Here is a tarball of the distribution which contains everything: ftp://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/5.1.0/freesurfer-Darwin-tiger-ppc-stable-pub-v5.1.0.tar.gz

Re: [Freesurfer] Edits to aparc+aseg.mgz

2012-08-20 Thread Douglas N Greve
Hi Cyrus, my apologies, I told you to edit the wrong file. You should edit brainmask.mgz, not brainmask.finalsurfs.mgz. Sorry about, I hope you did not waste too much time. doug On 08/20/2012 09:31 AM, Sarosh, Cyrus wrote: Doug, I edited the dura from the brain.finalsurfs.mgz file using the

Re: [Freesurfer] Problems with ICV calculations in fs5.1.0?

2012-08-20 Thread Nick Schmansky
The problem with the ICV calc in v5.1 is explained in the v5.1 Known Issues section of the ReleaseNotes page, which i've also just updated with notes on a workaround: https://surfer.nmr.mgh.harvard.edu/fswiki/ReleaseNotes the workaround is to type these commands: cd subjid/mri talairach_avi --i

[Freesurfer] Talairach transform error

2012-08-20 Thread Alexandra Tanner
Dear Doug, As I mentioned in a previous email, I'm currently working with T1 DICOM files from the Clinical PACS System that I'd like to pull into the freesurfer stream to get cortical thickness. I've unpacked the data, converting the DICOM files to mgz format, and successfully ran the first

[Freesurfer] More problems created when adding WMCP

2012-08-20 Thread Mark Fletcher
Dear FreeSurfers, I have been working on cross-sectional MRI's of healthy older adults (55-88), and have been correcting the FreeSurfer 5.1 output using the instructions given here ( http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/TroubleshootingData) to correct the FreeSurfer errors that we

[Freesurfer] qdec analyses without interaction effect

2012-08-20 Thread Shannon Kogachi
Hi, I was wondering if there is a way to run statistical tests, such as a 2-way ANCOVA, on QDEC but without the interaction effect. I ran a 2-way ANCOVA for thickness measures for a longitudinal study, and no interaction effect was found. Therefore, I would like to run the same test but without

Re: [Freesurfer] More problems created when adding WMCP

2012-08-20 Thread Louis Nicholas Vinke
Hi Mark, Try either one of these options for uploading data or snapshots for us to look at. FTP info: https://surfer.nmr.mgh.harvard.edu/fswiki/FtpFileExchange E-mail file drop: https://www.nmr.mgh.harvard.edu/facility/filedrop/index.html -Louis On Mon, 20 Aug 2012, Mark Fletcher wrote:

Re: [Freesurfer] More problems created when adding WMCP

2012-08-20 Thread Michael Harms
Hi Mark, Did you see my post from 1/10/2012 (anterior temporal lobe problems)? We had good success (albeit not perfect) in improving our anterior temporal surfaces using the options mentioned there. cheers, -MH On Mon, 2012-08-20 at 14:43 -0500, Mark Fletcher wrote: Dear FreeSurfers, I have

Re: [Freesurfer] Problems with ICV calculations in fs5.1.0?

2012-08-20 Thread Martin Reuter
And for fixing this in the longitudinal stream this should work: 1. you can fix the cross runs as described below (not really necessary, as the longitudinal results do not depend on this) 2. fix the base: cd templateid/mri talairach_avi --i nu.mgz --xfm transforms/talairach.xfm recon-all -base

[Freesurfer] bbregister with PET data

2012-08-20 Thread Marco Loggia, PhD
Hi Doug and Freesurfer team, I am trying to coregister some PET maps with their relative high resolution MEMPRAGE files. I was thinking that bbregister might be my best option but the results are still not satisfactory, likely due to the intrinsic features of my radioligand (the resulting