Hi Danny,
I calculated the mean_FA_mask with the command you provided and learned that FSL actually ‘just’ ran out of memory.
When I allocated more, it completed the postreg without problems.
Thank you for your advice!
Best,
Philipp
--
Philipp Neukam, M.Sc. Psych.
PhD Student / Doktorand
Technische Universität Dresden
Faculty of Medicine Carl Gustav Carus
Department of Psychiatry & Psychotherapy
Section of Systems Neuroscience
Würzburger Straße 35
01187 Dresden
Germany
Phone: +49 (0) 351 463 - 42217
Fax: +49 (0) 351 463 - 42202
mailto: [log in to unmask]
Von: FSL - FMRIB's Software Library [mailto:[log in to unmask]] Im Auftrag von Daniel Kim
Gesendet: Dienstag, 10. November 2015 18:08
An: [log in to unmask]
Betreff: Re: [FSL] TBSS postreg exception #22
Check the 4D FA nifti file - is it empty?
Then, try separately the command
$FSLDIR/bin/fslmaths all_FA -max 0 -Tmin -bin mean_FA_mask -odt char
Perhaps there's something funny going on when the output type is converted to type 'char'.
Danny Kim
On 2015-11-10, at 4:00 AM, Neukam, Philipp wrote:
Dear FSL’ers,
I am running a TBSS analysis with two groups (G00,G11) with Step 1 and Step 2 working fine so far, but when I run Step 3 (tbss_3_postreg -S) from the TBSS main folder it gives me the following message and error:
merging all upsampled FA images into single 4D image
creating valid mask and mean FA
Killed
Image Exception : #22 :: ERROR: Could not open image mean_FA_mask
terminate called after throwing an instance of 'RBD_COMMON::BaseException'
Aborted
Killed
skeletonising mean FA
Image Exception : #22 :: ERROR: Could not open image mean_FA
terminate called after throwing an instance of 'RBD_COMMON::BaseException'
Aborted
now view mean_FA_skeleton to check whether the default threshold of 0.2 needs changing, when running:
tbss_4_prestats <threshold>
TBSS manages to create the merged 4D nifty but not the mean_FA_mask for some reason.
Do you have an idea what the problem may be?
Thanks and bests,
Philipp
--
Philipp Neukam, M.Sc. Psych.
PhD Student / Doktorand
Technische Universität Dresden
Faculty of Medicine Carl Gustav Carus
Department of Psychiatry & Psychotherapy
Section of Systems Neuroscience
Würzburger Straße 35
01187 Dresden
Germany
Phone: +49 (0) 351 463 - 42217Fax: +49 (0) 351 463 - 42202
mailto: [log in to unmask]