dear everybody,
I found there is an upper limit on the number of gradients directions
that FSL (i.e. DTIFIT) is able to handle.
In my last post, "[FSL] Fdt (DTIFIT) & NEWMAT error" I asked around
about a 'NEWMAT::IndexException' error appearing when I run DTIFIT on
a scan.
This scan was taken with 256 gradient directions.
Then I discard half of the gradients directions (using fslroi on the
DWI data and considering only the first 124 directions) everything
worked out fine.
I don't know what's the upper limit, but apparently it's between 125
and 256.
Greetings
AC
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