yes, that will work. It will be a bit conservative (that is, if the
overall brain is shrinking then you will underestimate the true effects)
On
Wed, 2 May 2007, hankee wrote:
hi,
Now I use the parahippocampal gyrus gray matter volume to divide the total gray
matter volume,after that I use the
Hi Hankee,
For the parahippocampal gyrus, I would do the following to correct for
head size:
Raw Parahippocampal volume (as derived from aparc.stats)/ICV (as derived
from aseg.stats)
Best,
rahul
> hi,
> Now I use the parahippocampal gyrus gray matter volume to divide the total
> gray matter vo
hi,
Now I use the parahippocampal gyrus gray matter volume to divide the total gray
matter volume,after that I use the ratio to do the statistics. I think though
this procedure can adjust the head size for individual subjects. Am I riht? or
I can do like this way?
Bests
hankee
[EMAIL PROTEC
: [Freesurfer] about the Gray matter volume
I can't see the total gray matter volume in the ?h.aparc.stats file.If I run
the mris_volume ?h.surface command in the
/surf directory, It will produce the new file in this directory? which
data will include in this file?
After that I us
)RE: [Freesurfer] about the Gray matter volume
But I only can see the the total white matter volume in the ?h.aparc.stats
file,don't have total gray matter volume it the this file.
Thank you!
hankee
hankeeļ¼ <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED]
2007-04-29
---
This is reported in the ?h.aparc.stats file that is generated when the
parcellation is run.
Jenni
_
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of hankee
Sent: Sunday, April 29, 2007 8:43 AM
To: freesurfer
Subject: [Freesurfer] about the Gray matter volume
How to
How to calculate the total gray matter volume of the brain using FreeSurfer
software ?
[EMAIL PROTECTED]
2007-04-29
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