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Hello, Can you send me the report_log from your FEAT directory? Kind Regards Matthew -------------------------------- Dr Matthew Webster FMRIB Centre John Radcliffe Hospital University of Oxford > On 13 Apr 2018, at 16:21, Nicholas Holmes <[log in to unmask]> wrote: > > Hello all, > > I've not used fugue before, but I'm sure it shouldn't take >4 hours to unwarp one image. > > FSL5.0, FEAT 6.0, Ubuntu 14.04, 32GB RAM > > EPI data (TR=2.4, TE=40ms, FA=75, 3x3x3mm, 36 slices, 124 volumes) from a Phillips 3T Achieva > > BO fieldmap images acquired in the same orientation. these are exported as DICOMs and dcm2nii gives a single magnitude and phase image per fieldmap > > following the advice on the FSL wiki, I have BET'd the mag image, and re-scaled, unwrapped, and converted the phase image to rad/sec (values in the final phase image are in the range of 0~8000 rad/s) > > based on a number of parameters found in the header file of the B0 images and the sequence documentation (TE difference=2.6ms; EPI spacing=0.603ms), and using the FEAT GUI, fugue seems to start but then hangs. and hangs some more. > > same trouble with same data experienced on a different computer. > > any advice for where to start fixing this would be very greatly appreciated > > many thanks > Nick > > https://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FUGUE/Guide > > http://support.brainvoyager.com/functional-analysis-preparation/27-pre-processing/459-epi-distortion-correction-echo-spacing.html > > > This message and any attachment are intended solely for the addressee > and may contain confidential information. If you have received this > message in error, please contact the sender and delete the email and > attachment. > > Any views or opinions expressed by the author of this email do not > necessarily reflect the views of the University of Nottingham. Email > communications with the University of Nottingham may be monitored > where permitted by law.