In biological tissue, for a very short time scale (a few ms), the diffusion of the water molecules can be described as:
Which of the following statements is true about the diffusion of water molecules in the brain, over a timescale of roughly 50 ms?
Please select 2 correct answers
Which parameter should be changed to increase the diffusion length/displacement?
How will the log of the diffusion weighted signal change if the diffusion sensitizing gradient strength is doubled?
What is the relationship between the b-value and the resolution in q-space?
How is the signal intensity drift in dMRI data corrected?
When correcting for subject motion in diffusion MRI data, which processing step should be included to prevent a bias?
How does the size of a tract passing close by the grey matter or the ventricles determine the extent of the confound caused by partial voluming, for statistics computed for the entire tract volume?
For which of the following studies is TBSS likely to be unreliable?
How often does more than one fiber orientation occupy a voxel in a diffusion MRI acquisition with 2 mm isotropic voxel size?
What is the recommended step size and the order of interpolation for tractography?
What is the main drawback of probabilistic tracking?
Which structures will be over-represented if the tractography is seeded from every voxel in the brain white matter?
The seeding bias can be overcomed by:
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