One of them will be mni305 coordinates, the other an approximation of
talairach coordinates. I'd have to dig into the code to see which one
was which.
On 11/20/17 10:17 AM, Dongsheng Wu wrote:
Dear Freesurfer Developers,
I have two questions about coordinate of ROI when running the QDEC
module: (1) After drawing a ROI,the terminal demostrated the results
like this:
ClusterNo Max VtxMax Size(mm^2) TalX TalY TalZ CWP
CWPLow CWPHi NVtxs WghtVtx Annot
1 -4.407 13586 966.10 44.2 -39.2 7.1 0.02020
0.01840 0.02200 2402 -4786.73 bankssts
Could you tell me what exactly the "TalX TalY TalZ" refers to and
whether the coordinate "TalX TalY TalZ" represents the VtxMax of the
ROI? When I clicked the button "FindClustersAndGotoMax", the terminal
showed the results:
ClusterNo Max VtxMax Size(mm2) TalX TalY TalZ NVtxs Annotation
--------- --- ------ --------- ---- ---- ---- ----- ----------
1 -1.6946 7 966.10 45.9 -43.8 7.5 2402 bankssts
The size(966.10mm2) and NVtxs(2402) of the two results are the same,
but the "Tal X Y Z" is a little different. So are they the same region?
(2) I used mris_anatomical_stats to get a set of statistics on each
individual label created before, the average thickness,number of
vertices, surface area and gray matter volume were saved in the file
of stat. Was the average thickness the normalized one?
Thank you for your help.
Best regards,
Dongsheng Wu
Huaxi MR Research Center, Westchina Hospital,Sichuan University
Chengdu,Sichuan,China
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