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These are the missing regions in which I want to obtain their SUVr.
Left-Lateral-Ventricle, Left-Inf-Lat-Vent,
3rd-Ventricle, 4th-Ventricle, Left-vessel, Right-Lateral-Ventricle,
Right-Inf-Lat-Vent, 5th-Ventricle, WM-hypointensities, Left-WM-hypointensities,
Right-WM-hypointensities, non-WM-hypointensities,
Left-non-WM-hypointensities, Right-non-WM-hypointensities, Optic-Chiasm,
CC_Posterior, CC_Mid_Posterior, CC_Central, CC_Mid_Anterior, CC_Anterior.
This is what I get when I applymri_gtmpvc.
I already followed the link that you submitted to me.
Le dim. 19 juin 2022 à 15:54, Douglas N. Greve
<dgr...@mgh.harvard.edu> a écrit :
On 6/15/2022 7:40 AM, Bouchra Guelib wrote:
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Hi,
I wonder if someone can help me to do something similar to
that:
" the mean intensity of each FreeSurfer region (ROI) for the
45 subcortical and the 68 cortical regions were assessed the
mean intensity of each FreeSurfer region (ROI) for the 45
subcortical and the 68 cortical regions were assessed to
obtain SVU".
Also, I found an article that mentioned that " the estimated
total intracranial volume (eTIV) is calculated, which is
used later for normalization of the volumetric measures".
My questions are:
1) In " gtm.stats.dat" not all subcortical regions are
mentioned, why?
which ones are missing?
2) I applied "mri_getmpc" to obtain the mean intensity,
however, I could not figure out what I should do after this
step to obtain the mean intensity and compute SVU.
Do you mean mri_gtmpvc? the values will be in the
gtm.stats.dat file
3) why do they use eTIV, should I use it, and if yes how!
I don't know. It does not make sense to correct an intensity
with eTIV.
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best regards.
--
*GUELIB Bouchra: *Ph.D. student
*Lire *Laboratory
University: Constantine 2-Abdelhamid Mehri- *Algeria *
Alternative email: guelibbouc...@gmail.com**
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*GUELIB Bouchra: *Ph.D. student
*Lire *Laboratory
University: Constantine 2-Abdelhamid Mehri- *Algeria *
Alternative email: guelibbouc...@gmail.com**
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