Dear all,
I have downloaded some DTI data from https://www.mristudio.org/ .
I want to practice the FDT tool on the data above.
Unfortunately, after run "eddy_current" function and "bedpostx" function,
I tried to run "probtrackx" to track the fibers through one seed points as
the following command,
[code]
probtrackx -V 2 --mode=simple --
seedref=./bedpost.2fibers.bedpostX/nodif_brain_mask.nii.gz -
o ./dti_probtrack -x ./dti_probtrack/fdt_coordinates.txt -c 0.2 -S 2000 --
steplength=0.5 -P 5000 --forcedir --opd -
s ./bedpost.2fibers.bedpostX/merged -
m ./bedpost.2fibers.bedpostX/nodif_brain_mask.nii.gz --dir=./dti_probtrack
[/code]
and it promted the following errors,
[error]
basename ./bedpost.2fibers.bedpostX/merged
maskfile ./bedpost.2fibers.bedpostX/nodif_brain_mask.nii.gz
seeds ./dti_probtrack/fdt_coordinates.txt
output ./dti_probtrack
verbose 2
nparticles 5000
nsteps 2000
usef 0
rseed 12345
1_1
1_2
1_3
2_1
2_2
Image Exception : #99 :: Out of memory
terminate called after throwing an instance of 'RBD_COMMON::BaseException'
Aborted
[/error]
Since I just try to track the fibers going through one seed points storing in
the "fdt_coordinates.txt", why does it promt "Out of memory" ?? The version
of FDT toobox is 2.0, and the memory of the system is 3G. The tested DTI
data is 256*256*50*35, where 35 is the number of gradient direction (with 5
b=0 directions).
Thanks for any clues,
Nicozuo
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