On Aug 30, 2021, at 04:17, Marco Aiello <marcoaiello1978@gmail.com> wrote:

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Dear Freesurfer experts,

I'm running (FS 7.1.1) segmentThalamicNuclei.sh on T1 scan from recon-all.

On a sample of about 100 subjects I've found an average volume of 250 mm^3 and 290 mm^3 for LGN-left and LGN-right, respectively.  Consistent with literature, I would expect an LGN volume around the order of 100 mm^3.  Do you have any suggestions to address this issue?

Best,

Marco

An example of left thalamic nuclei stats on a subject:

# Left Thalamic nuclei volume statistics as created by segmentThalamicNuclei.sh
1 1  0 179.160119 AV
2 2  0 89.639229 CeM
3 3  0 40.504433 CL
4 4  0 298.704524 CM
5 5  0 29.204221 LD
6 6  0 323.610060 LGN
7 7  0 172.804240 LP
8 8  0 16.699212 L-Sg
9 9  0 370.292762 MDl
10 10  0 1028.359432 MDm
11 11  0 99.816768 MGN
12 12  0 16.307111 MV(Re)
13 13  0 4.583480 Pc
14 14  0 46.055844 Pf
15 15  0 8.414055 Pt
16 16  0 274.769665 PuA
17 17  0 276.059756 PuI
18 18  0 197.470981 PuL
19 19  0 1329.257389 PuM
20 20  0 540.769724 VA
21 21  0 48.461021 VAmc
22 22  0 879.500725 VLa
23 23  0 1143.223136 VLp
24 24  0 33.606403 VM
25 25  0 1224.126516 VPL
26 26  0 8671.400807 Whole_thalamus

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