Hi Pietro,
I think you should try redoing the control points from scratch, but with
fewer control points and sparser placement. Currently you have 198
control points tightly packed in only a couple regions. Furthermore,
there is one control point at 128, 128, 128 which is right in the thalamus
which should not be there, maybe an accidental click?
Take a look at the placement of the control points in the snapshots on
this tutorial page:
https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/ControlPoints_freeview
If you compare the norm.mgz volumes before/after editing, you will notice
the extreme hyper-intense wm (130+) in the temporal lobes after adding
control points and rerunning. The norm.mgz is passed to mri_pretess to
create the wm.mgz. You can see there is overlap between the hyper-intense
voxels on the norm and the voxels not being included in the wm mask, which
leads to major errors in the wm surface.
-Louis
On Fri, 15 Nov 2013, pietro de rossi wrote:
Good morning Dr Vinke,
did you have the chance to take a look at the subject I uploaded a few days ago?
thanks again.
Kind regards,
Pietro
--
Pietro De Rossi, MD
-------------------------------------
Sapienza Università di Roma, Facoltà di Medicina e Psicologia, Dipartimento
NESMOS (Neuroscienze, Salute Mentale, Organi
di Senso), Ospedale Sant'Andrea, Via di Grottarossa 1035-1039, 00189 Roma
NESMOS Department (Neurosciences, Mental Health and Sensory Functions), School
of Medicine and Psychology, Sapienza
University, Sant’Andrea Hospital, Via di Grottarossa 1035-1039, 00189 Rome,
Italy
Laboratorio di Neuropsichiatria, Dipartimento di Neurologia Clinica e
Comportamentale, IRCCS Fondazione Santa Lucia, via
Ardeatina 306 - 00179 Roma
Tel. +39 (0)6 51501358
Fax +39 (0)6 90280774
web: http://www.neuropsichiatrialab.com
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