Hi Moran, You cannot (yet) use the FDT tools to do qspace analysis (which I am not sure how you can do anyway if you only have a single b>0). The FDT tools for modelling the signal are DTIFIT and BEDPOSTX, and those will work fine on your data (because you have a single b>0!) Cheers, Saad. On 25 Nov 2009, at 08:41, Moran Artzi wrote: > Hi Matt, > Thanks for your replay > data info: > bvalue of 12000 (non-mono-exponential decay) with 45 gradients > directions > attached - bvals and bvecs files > > Many thank > Moran > > > > > > On Wed, Nov 25, 2009 at 8:56 AM, Matt Glasser <[log in to unmask]> wrote: > FSL's model based analysis is capable of analyzing single shell data > of any > bvalue. What are the parameters of your sequence (# of directions, > bvalue(s))? > > Peace, > > Matt. > > -----Original Message----- > From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On > Behalf > Of Moran Artzi > Sent: Wednesday, November 25, 2009 12:08 AM > To: [log in to unmask] > Subject: [FSL] DTI with High b value > > Hi, > Is there a way to analyze data of DTI with High b value (q-space > analysis) > using FSL? > Thanks > Moran > > <bvasl><bvecs> -- Saad Jbabdi University of Oxford, FMRIB Centre JR Hospital, Headington, OX3 9DU, UK +44 (0) 1865 222466 (fax 717) www.fmrib.ox.ac.uk/~saad