In very preterm infants cortical grey matter does exhibit anisotropy due to its radial organisation, but by term age (40 weeks), the cortex will be low anisotropy.
wbw serena
Dr Serena J Counsell
MRC Senior Investigator Scientist
Honorary Senior Lecturer
Imaging Sciences Department
Imperial College London
020 8383 2773
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From: FSL - FMRIB's Software Library on behalf of Peter Kochunov
Sent: Mon 23/02/2009 14:35
To: [log in to unmask]
Subject: Re: [FSL] TBSS for neonatal brain
Well, I don't think TBSS will work in this population since the human brain is basically unmylinated at birth and offers very little FA contrast. In fact, the GM ribbon will probably have higher FA values than white matter.
pk
----- Original Message -----
From: cathyliu <mailto:[log in to unmask]>
To: [log in to unmask]
Sent: Monday, February 23, 2009 6:51 AM
Subject: [FSL] TBSS for neonatal brain
Hi,
We tried to get the template of FA maps on 22 neonatal cases by using TBSS and followed the instructions from your website. We chose the target image from our population but in the TBSS results we failed to get the good template FA maps, which might be caused by the failed registration between the target image and mpi space. Do you have some idea about it?
Thanks,
Regards,
Yan
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