Dear FSL experts
We measured resting state fMRI data and would like to cover the whole brain
incl. the cerebellum. We used a TR = 2200 ms and TE = 16 ms and were able to
acquire 45 slices with 3 mm slice thickness.
But the MR physicist of the MR unit claimed that a TE of 16 ms is too short
to get a good BOLD-contrast. We recognized that most rsfMRI papers used TE
of about 35 ms.
Therefore I would like to know, whether a TE of 16 ms is really too short
for rsfMRI analyses?
If TE of 16 ms is too short, what is the preferred change?
1. using longer TR (4400 ms)
2. using less than 45 slices
3. increasing slice thickness
4. introducing a gap between slices
Thanks in advance for any recommendation
Regards
Jürgen
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Jürgen Hänggi, Ph.D.
Division Neuropsychology
Institute of Psychology
University of Zurich
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