Dear all,
I'm new to MITK Diffusion and would like to get some help in using Fiberfox.
I'd like to simulate DWIs from a fiber phantom to test our reconstruction
algorithm, and need a 1mm*3 isotropic resolution for a specific reason. I
figure the easiest way might be to use an existing fiber phantom and use
Fiberfox to simulate DWIs.
The only fiber phantom data I could find online is the "ISMRM 2015 Tractography
challenge - Data" from http://www.tractometer.org/ismrm_2015_challenge/data
which published all files needed to regenerate DWIs e.g. Fibers.fib. However,
the output DWIs only has one volume.
The steps I did was:
Open MITK Diffusion 2014.10.02, switch to fiberfox module, load Fibers.fib. In
the Signal Generation tab, I entered Image settings to the desired #directions
and b-values, along with others. Then I select the Fiber.fib image and start
simulation. When simulation is done, I save the .dwi outoput file to .nii,
which only contains one volume (asking for 10 directions) and the contrast
looks a bit weird: with intensity ranges from 204-242 and none fiber regions
being all 204.
Could you anyone help give me some suggestions on what I did wrong?
Thanks,
Qiuting
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