Can you provide the commandline you used for probtrackx or the contents of
probtrackx.log?
Peace,
Matt.
-----Original Message-----
From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf
Of Francis Wong
Sent: Sunday, March 21, 2010 7:22 PM
To: [log in to unmask]
Subject: [FSL] FDT Multiple masks - all zeros
Hi,
I am having troubles with PROBTRACKX with multiple masks as seeds. Simply
put, I got
images with all zeros after running PROBTRACKX.
For example, with the sample DTI data in the FSL course materials, I tried
using the
thalamus and the precentral gyrus as the seeds in Multiple masks mode
without any
targets, I can't find a single non-zero voxel in the output of FDT.
I am quite confident with the data preprocessing steps because I did get
sensible tracks, for
example, using pSTG as the seed mask, I am able to get the tracks projecting
to the IFG.
But when I no tracks were found with pSTG and IFG as the seed masks.
Is there any sample data showing what an output would look like with
multiple masks
mode?
Any input from you guys would be much appreciated.
Thanks,
Francis
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