Dear Feng,
On Fri, 9 Feb 2018 10:08:02 +0800, chenhf_uestc <[log in to unmask]> wrote:
>Dear CAT experts,
>Now, I am using CAT12.1 (r1266 version) to process my data, and I would like to conduct the ROI analysis. I found in the CAT12 software, there are just 7 atlas (expert mode) and 3 atlas (basic mode). However, actually, I want to extract the volume and thickness in other atlases (such as Brodmann atlas) rather than these 7 atlases. I am wondering that is there any easier way to implement my goal?
These atlases were transformed to the CAT12 Dartel space and this is a prerequisite for getting reliable results. Thus, there is no easy way to implement other atlases.
>
>In addition, when I finish conducting ROI analysis, it will generate a mat file catROI*.mat. In this file, there are volume and thickness values in each ROI (Vcsf, Vgm, Vwm, Tcsf, Tgm, Twm). I thought the cortical thickness should be only belong to gray matter (like freesurfer), but how could I understand the thickness belong to white matter and CSF?
Please ignore the thickness ROI estimates, which were not thought to make public. I have thought that these values were not available anymore...
>
>Moreover, the regions in hammers atlas (or other atlas in CAT12), I found nearly each region has the gm, wm and csf volume value. Does this mean that each region contain three tissue classes (gm, wm, csf)? But I think at least the regions in AAL atlas should belong to gray matter, right?
The availability for different tissue types simply depends on the atlas. Some also cover WM and/or CSF.
Best,
Christian
>
>Thanks in advance!
>
>Best,
>Feng
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