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Priya,
I wanted to share with you that the first time I ran eddy_correct I got errors that turned out to be very serious. 
The problem was that cygwin was finding the wrong version of "sort" and the results were quite wrong.  See my output below.
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A question if I may...it looks like DTIstudio will save as raw "dat" files or analyze.
Are raw dat files dicom?  Did you save images using DTIstudio...or were you able to get MRIconvert to take your original dcm images and save them?
It isn't clear to me what the best course is here...any thoughts would be appreciated.  Thanks for directing me to MRIconvert.

Dianne

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Output of eddy_correct when I had the problem with "sort":
Seems to run but complains:

[dpat@abel ~/EddyTest]$ ls
Image4d.hdr  Image4d.img
[dpat@abel ~/EddyTest]$ eddy_correct Image4d.img test1 0
-uThe system cannot find the file specified.

Usage: avwmerge <-x/y/z/t> <output> <file1 file2 .......>

-t : concatenate images in time
-x : concatenate images in the x direction
-y : concatenate images in the y direction
-z : concatenate images in the z direction

-a : auto-choose: single slices -> volume, volumes -> 4D (time series)

[dpat@abel ~/EddyTest]$ ls
Image4d.hdr  Image4d.img  test1.nii.gz

Output file is test1.nii.gz

On 2/27/07, Priya Srinivasan <[log in to unmask]> wrote:
Hello,
I am trying to perform eddy correction with FDT. My initial files were in the Siemen's Mosaic format and I converted them to a 4D .nii format using MRI convert. This software gave me an option to save the converted mosaic Dicom's to "FSL NIfTI". I also see the bvecs and bvals files created. I was able to view them in MRIcro.
 
However, when I load the images under the 'eddy current' tab I get an error saying "Errors: Input does not exist or is not in a supported format"
 
I searched for a solution in the fsl discussions but could not find one. Any help will be greatly appreciated!
 
Thanks 



--
Dianne Patterson, Ph.D.
[log in to unmask]
ERP Lab
University of Arizona
621-3256 (Office)