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I'm not actually sure where the difference crept in, but one fix would be to reslice the Template*.nii files (selecting all volumes) so that they match your new imported images. Use trilinear interpolation, so as not to introduce any negative values. This can be done using the Coregister and reslice only option. Best regards, -John On Monday 15 December 2008 23:08, Dana Perantie wrote: > One more idea: before you re-did the Initial Import, did you also re-do the > Segment that produced the seg_sn.mat files? If you used the default > bounding box during Initial Import [NaN NaN NaN; NaN NaN NaN], it would > refer to the dimensions of the template used during the Segment. If > different images were used as the Segment a priori templates (or if the > apriori templates changed), then the initial import dimensions could be > different, even if you left the bounding box as the default. I would > Display a rc1* and Template to double-check the dimensions and voxel sizes. > In SPM8b I am able to replicate the error that you describe when these do > not match. -Dana > > > From: Muhammad Parvaz [mailto:[log in to unmask]] > Sent: Monday, December 15, 2008 2:37 PM > To: Dana Perantie > Cc: [log in to unmask] > Subject: Re: [SPM] DARTEL error > > Hi, > > I am using SPM5 with Matlab7.0.1. > > Yes, I did the initial import again, and both times (previously and Now) > the voxel size and the bounding box have the same value. What else can go > wrong? > > Thanks > -M > > On Fri, Dec 5, 2008 at 2:26 PM, Dana Perantie > <[log in to unmask]<mailto:[log in to unmask]>> wrote: > > Hi Muhammad, > > Did you re-do the "Initial Import" for the current analysis? If so, did > you use the same voxel size and bounding box as the previous analysis? > > If it is a subset of the group you previously ran and included in the > creation of the first template, does that mean you already have the u_* > (flow fields) for those subjects to the group template? If they are > subjects included in the original analysis, I do not understand why you > need to run them again with "existing Templates". > > -Dana > > > > From: SPM (Statistical Parametric Mapping) > [mailto:[log in to unmask]<mailto:[log in to unmask]>] On Behalf Of > Muhammad Parvaz Sent: Friday, December 05, 2008 12:21 PM > To: [log in to unmask]<mailto:[log in to unmask]> > Subject: [SPM] DARTEL error > > > > Hello all, > > We are using DARTEL for VBM. In the past, we have analyzed a big group > (N=98) with DARTEL already and have gotten some decent results. However, > now when we are looking at a subset of our previous dataset (N=27) and > running DARTEL using the 'existing Template' option, we get the following > error. > > > Running "Run DARTEL (existing Templates)" > *** rc1V00763 *** > > Error running job: Error using ==> spm_dartel_warp > Incompatible dimensions between images and template > > Any suggestion and/or help will be much appreciated. > > Thanks > -Muhammad