Dear mailing list,
regarding longitudinal , multi-center trials, using DTI and FSL:
We are planning a longitudinal study on stroke patients , and want to
acquire DTI at different time points during recovery/training.
Different centers are involved, so obviously different scanners.
How would one best correct for the different scanners, in the analysis?
(FA, tracts); and is it possible to combine PHilips and Siemens data?
(1.5 versus 3 T is not possible at all, I guess; so just within the 3 T
and the 1.5 T data)
as for scanning parameter: 60 directions, plus 6 volumes without
diffusion weighting as the standard; do we have to choose the exact same
TR and TE on all scanners? are there parameters that are optimal for
longitudinal measurements?
Thanks very much in advance, agnes floel
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