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Thanks, Matt. I re-ran DTIFIT and the new FA images convert without error. -Laura ________________________________ From: Matt Glasser <[log in to unmask]> Reply-To: FSL - FMRIB's Software Library <[log in to unmask]> Date: Wed, 2 Sep 2009 11:06:11 -0400 To: <[log in to unmask]> Conversation: [FSL] problem with fslchfiletype conversion Subject: Re: [FSL] problem with fslchfiletype conversion It sounds like your input is corrupted. Can you try regenerating it? Peace, Matt. -----Original Message----- From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Laura Danielian Sent: Wednesday, September 02, 2009 9:41 AM To: [log in to unmask] Subject: [FSL] problem with fslchfiletype conversion Hi, I am having some trouble converting 2 images from analyze to nii.gz format for use in TBSS. The files are getting cropped (about the top 10 slices) after conversion, and I get error messages about "Missing header/image files" and "Failed to load base image. Command line processing aborted." when trying to view in fslview and the following when using fslmaths: ++ WARNING: nifti_read_buffer(FA.nii.gz): data bytes needed = 3483864 data bytes input = 2624584 number missing = 859280 (set to 0) I ran fslhd and got the same output except for a difference in the vox_offset which was 0 on the analyze file and 352 on the nifti_gz file. However, this was also true for files that did not have trouble with the conversion. We are using regular characters in the file names-no spaces. Your help is appreciated! Thanks, Laura