Hi Irene,
Sorry for the delay. I wrote some tools almost 10 years ago that do lesions/wm/gm/csf segmentations from multi-spectral data; the code is very much outdated (runs on SPM99!) but if you are technically skilled you can certainly still get it running: http://www.medicalimagecomputing.com/downloads/ems.php.
We have been working on recent code to do this as well, but unfortunately that is nowhere near completion yet...
Koen
On Monday 26 July 2010 09:29:22 Irene Altarelli wrote:
Hi Freesurfers,
I heard about tools for segmenting wm hypotensities from multi-spectral data. We have various sequences (T1, T2 and Flair) from a group of patients and controls and would be interested in looking at hypointensities. So I was wondering if these tools are accessible somewhere.
Thanks very much in advance, Irene
Le mercredi 12 mai 2010 à 20:06 -0400, Bruce Fischl a écrit :
Hi Victor
we treat it as any other label - it's manually labeled in the training subjects and propagated into the aseg. Koen Van Leemput (ccd) has some tools for segmenting them from multi-spectral data that probably works better though (they aren't that well defined only on a T1).
cheers Bruce
On Wed, 12 May 2010, Laluz,
Victor wrote:
Hello guys,
I am curious as to how white matter hypointensities (on T1 mprage) are measured automatically for the aseg.stats file in FS? A group at UCSF is interested in using this measure for a study and would like to have a nice explanation or citation to describe how it is generated.
I have looked through what I think the likely citations would be on the Freesurfer techniques article listing and came up empty.
Thanks!
Victor
Victor Laluz : Imaging Coordinator : UCSF Memory and Aging Center
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