1) Open a commandline terminal 2) Navigate to the folder that your data is stored in 3) Type bedpostx_datacheck Peace, Matt. _____ From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Mi Jung Kim Sent: Monday, March 09, 2009 11:31 PM To: [log in to unmask] Subject: Re: [FSL] capillary phantom for muscle dti Hi Matt, I am actually sort of beginner with dti analysis. Could you tell me how to run bedpostx_datacheck please? Sincerely, Mi Jung On Mon, Mar 9, 2009 at 7:54 PM, Matt Glasser <[log in to unmask]> wrote: Please run bedpostx_datacheck in your data folder, and post the result here. Peace, Matt. _____ From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Mi Jung Kim Sent: Monday, March 09, 2009 9:45 PM To: [log in to unmask] Subject: Re: [FSL] capillary phantom for muscle dti Hi Mark, Thanks a lot. I also tested with b0 images, but it still gives same error. Thanks, Mi Jung On Mon, Mar 9, 2009 at 6:04 PM, Matt Glasser <[log in to unmask]> wrote: It looks like you are missing the b0 image. Amend your bvecs to be: {0.0 1.0 0.446 0.447 0.448 0.447 -0.449 0.0 0.0 0.895 0.275 -0.723 -0.724 -0.277 0.0 0.0 0.0 0.851 -0.525 0.526 0.850}-bvecs And your bvals to be: {0 500 500 500 500 500 500}-bvals Peace, Matt. -----Original Message----- From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Mi Jung Kim Sent: Monday, March 09, 2009 6:43 PM To: [log in to unmask] Subject: [FSL] capillary phantom for muscle dti Hi All, I am trying to use probabilistic tractograph with my phantom data. I have problem with running 'dtifit'. Below are my bvecs and bvals. {1.0 0.446 0.447 0.448 0.447 -0.449 0.0 0.895 0.275 -0.723 -0.724 -0.277 0.0 0.0 0.851 -0.525 0.526 0.850}-bvecs {500 500 500 500 500 500]-bvals But I see some error message so that I suspect that my vectors and values are not matched with my dwi images. My images actually scaled images from dicom.Would it be a problem? Is there anybody who can help me? Thanks, Mi Jung