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Thanks for your reply Andreas. Okay, so dtifit can handle missing data for an entire diffusion-weighted volume, or one particular slice from all volumes... but what about missing data from a specific slice from a specific volume? - Jerry On Tue, Oct 28, 2008 at 6:35 PM, Andreas Bartsch < [log in to unmask]> wrote: > Hi, > I think the webpage refers to "images affected by large artifacts" in terms > of volumes. Here you'd have to throw out the entire volumes and adjust your > bvecs/bvals files accordingly (i.e by throwing out the respective entry). > You may also eliminate a particular slice from ALL volumes if that slice is > affected across the entire series. That's perfectly fine for dtifit (or even > bedpost(x)) and you would not have to change your bvecs/bvals in that case. > However, it may cause issues for probtrack - not computationally but when it > comes to the tracking results and what you are going to do with these. Also > you may want to be careful about eliminating slices before or after > eddy_correct. > Hope that helps, > Cheers- > Andreas > > ________________________________ > > Von: FSL - FMRIB's Software Library im Auftrag von Jerry Chen > Gesendet: Di 28.10.2008 20:27 > An: [log in to unmask] > Betreff: [FSL] dtifit and missing data > > > Hello, > > From the processing pipeline, > http://www.fmrib.ox.ac.uk/fsl/fdt/fdt_pipeline.html, it is suggested that > we remove bad slices with artifacts. > I am using DTI-Studio to do this. However, I would like to know whether or > not FSL's dtifit can process data with missing slice data. I have heard that > it can not, but I can not find verify this through the website or support > e-mail archive. > > Thanks for your time, > - Jerry >