Hi
This is the first time I have tried using FSL, and I am trying to get the DTIFit program to work. I have
a series of diffusion weighted images, each of which are stored as individual fid files (created using
Varian's VnmrJ software). There are seven images in total, one with b=0 and 6 with diffusion
gradients applied in non co-linear directions. I have converted each of these into Nifti format, and
stored them all in a directory. I used FSLview to create my binary mask, and have created text files
with my gradient directions (all normalized to unit length), and my b-values (in units of s/mm2). In
the DTIFit program, I have selected 'specify input files manually', and supplied it with the directory
containing my nifti files, and the filenames of my gradients and b-values text files.
When I press 'go', I get a number of error messages, such as: 'ERROR: nifti_image_read(....directory
name....)can't open header file', 'ERROR: nifti_image_open(...):bad header info', 'Error: failed to open
file', etc. I get the same errors when I try it with analyze files.
Would you be able to tell me what I'm doing wrong? Thanks very much
Patrick Hales
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