Hi all
We are starting using sienax to estimate ventricular CSF to study
patients with hydrocefalus on standard spin echo T1 and T2 images
matrix 256x256, 20 slices 5 mm thickness and 1 mm gap and we have some
problem :
Looking at debug results we observe that in restored data, after bias
correction, ventricles are badly attenuated (central part of ventricles
is now close to WM/GM intensity !) ...bias map is accordingly dark in
ventricles and segmentation fails in this areas.
We have tried different options with no results. In particular, after a
search on fsl-list archive, we tried to disable bias correction using -l
1000
but without improvements.
Any suggestion ? Is there any chance to use this data? If it can help I
can post a snapshot .
Flavio
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