Hi Eugenio,
Thank you very much.
I have 54 subjects, aged from 21 to 71. I ran 'recon-all -all' and
'recon-all -qcache', and acquired the volume of hippocampus from the
aseg.stats. Then I used SPSS to calculate correlation between age and volume
without correcting by intracranial volume. For hippocampus subfields, I also
did it without correcting by intracranial volume.
Thanks,
Zheng
At 2017-11-17 21:40:20, "Iglesias Gonzalez, Eugenio" <e.igles...@ucl.ac.uk>
wrote:
Hi again, Zheng,
How many subjects do you have? Did you correct by intracranial volume? What is
the age range?
--
Juan Eugenio Iglesias
ERC Senior Research Fellow
Translational Imaging Group
University College London
http://www.jeiglesias.com
http://cmictig.cs.ucl.ac.uk/
From: <freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of 郑凤莲
<13181786...@163.com>
Reply-To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Date: Friday, 17 November 2017 at 12:41
To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Subject: Re: [Freesurfer] hippocampus subfields
Dear Eugenio,
Thank you for your reply. I am sorry that I don't express it clearly.
FIrstly, I ran egstats2label --subjects subjid --meas volume --segno 17 53
--tablefile $SUBJECTS_DIR/ASEGSTATS.txt' and acquired the volume value of left
and right hippocampus. Then I used SPSS software to calculate the relationship
between volume and age, the P value in the left is 0.029 and the right is
0.125. It showed that there is difference in volume of the left hippocampus,
but the right isn't.
Secondly, I ran 'recon-all -s subjid -all -hippocampal-subfields-T1', and
get the volume of hippocampus subfields. The p value of left_whole_hippocampus
is 0.229 and the right is 0.468. There is no difference in left or right
hippocampus.
My doubt is that why there is an obvious difference between the results of
two ways. Can I speak in this way? If it still not clear, please tell me what
you need, I will provide it for you.
Thanks,
Zheng
At 2017-11-17 17:54:13, "Iglesias Gonzalez, Eugenio" <e.igles...@ucl.ac.uk>
wrote:
Dear Zheng,
Do you think you could provide us with some more detail on your analyses?
Cheers,
/Eugenio
--
Juan Eugenio Iglesias
ERC Senior Research Fellow
Translational Imaging Group
University College London
http://www.jeiglesias.com
http://cmictig.cs.ucl.ac.uk/
From: <freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of 郑凤莲
<13181786...@163.com>
Reply-To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Date: Friday, 17 November 2017 at 09:40
To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] hippocampus subfields
Hi professor,
I am using Freesurfer for DTI data. When I run 'mri_segstats', I got the
result that there was anobvious difference in left hippocampus, but no
difference in right hippocampus. Then, I run segmentation of hippocampus
subfields. The result showed there is no difference in total left or right
hippocampus, and only in two right hippocampus subfields has significant
difference. Why is there inconsistent result in two means?
Thank you very much.
Sincerely,
Zheng
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Partners Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to you in error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.
