But of course, Bruce says the .nii.gz format should have worked, so it does not 
need to be type mgz format. I would trust Bruce. Sorry for not cc'ing the 
mailing list earlier.

Thanks,
John

John Drozd
Post-Doctoral Fellow
Robarts Research Institute
University of Western Ontario
London, Ontario, Canada
http://publish.uwo.ca/~jdrozd2


Begin forwarded message:

> From: John Jan Drozd <john.dr...@gmail.com>
> Date: 1 August, 2011 5:10:07 PM EDT
> To: "Tax, C.M.W." <c.m.w....@student.tue.nl>
> Subject: Re: [Freesurfer] Problem loading nii
> 

> Hi,
> 
> I believe the image must be type mgz format for Freesurfer.  (For FSL it 
> needs to be type nii or nii.gz.)
> 
> Try typing:
> 
> gunzip t1.nii.gz
> mri_convert t1.nii t1.mgz
> tkmedit -f t1.mgz
> 
> John
> 
> John Drozd
> Post-Doctoral Fellow
> Robarts Research Institute
> University of Western Ontario
> London, Ontario, Canada
> http://publish.uwo.ca/~jdrozd2
> 
> 
> On 2011-08-01, at 4:55 PM, "Tax, C.M.W." <c.m.w....@student.tue.nl> wrote:
> 
>> Dear Sir/Madam,
>> 
>> I would like to use freesurfer for cortical flattening, working with the nii 
>> format. When I try to load the nii.gz file as described on 
>> http://www.fmrib.ox.ac.uk/fsl/freesurfer/index.html, I get the following 
>> error:
>> 
>> student@BMT-PC125:~$ tkmedit -f t1.nii.gz
>> niiRead(): error opening file ./t1.nii.gz
>> 
>> 
>> Error: Loading volume t1.nii.gz
>> 
>> Couldn't read the anatomical volume.
>> 
>> Tkmedit couldn't read the volume you specified.
>> This could be because the image format wasn't recognized,
>> or it couldn't find the proper header,
>> or the file(s) were unreadable,
>> or it was the wrong size.
>> 
>> 
>> This image t1.nii.gz was obtained by converting DICOM images with dcm2nii. I 
>> also tried to load a example dataset downloaded from 
>> http://nifti.nimh.nih.gov/nifti-1/data, but still I get the same error. FSL 
>> was able to load both datasets without problems.
>> 
>> Please could you help me with this problem?
>> 
>> Thank you in advance,
>> 
>> Kindest Regards
>> 
>> _______________________________________________
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>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>> 
>> 
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