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Hi all,
I am currently running a longitudinal hippocampal subfields analysis using version 6.0. Based on the visual inspection of images, I see that Freesurfer is doing a great job.
The problem is that I get negative values of the subfields volumes e.g. Hippocamap_tail -420.400366 subiculum -368.134590
The values seems to be reasonable, but why they are negative, i.e. why they have a '-' sign. Could the minus sign be a hyphen?
Has anybody encounther this problem? I hope you can help
BW, Chris
Dear Chris, Can you please send us the output txt file? Cheers, /Eugenio
Juan Eugenio Iglesias Senior research fellow CMIC (UCL), MGH (HMS) and CSAIL (MIT) http://www.jeiglesias.com
From: freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Krzysztof Gbyl krzygby@gmail.com Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Wednesday, 18 September 2019 at 08:41 To: "freesurfer@nmr.mgh.harvard.edu" freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] negative values of hippocampal subfields volumes
External Email - Use Caution Hi all,
I am currently running a longitudinal hippocampal subfields analysis using version 6.0. Based on the visual inspection of images, I see that Freesurfer is doing a great job.
The problem is that I get negative values of the subfields volumes e.g. Hippocamap_tail -420.400366 subiculum -368.134590
The values seems to be reasonable, but why they are negative, i.e. why they have a '-' sign. Could the minus sign be a hyphen?
Has anybody encounther this problem? I hope you can help
BW, Chris
External Email - Use Caution
Dear Eugenio,
I attach an example of how it looks.
BW, Chris
Den ons. 18. sep. 2019 kl. 14.44 skrev Iglesias Gonzalez, Juan E. < JIGLESIASGONZALEZ@mgh.harvard.edu>:
Dear Chris,
Can you please send us the output txt file?
Cheers,
/Eugenio
Juan Eugenio Iglesias
Senior research fellow
CMIC (UCL), MGH (HMS) and CSAIL (MIT)
*From: *freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Krzysztof Gbyl krzygby@gmail.com *Reply-To: *Freesurfer support list freesurfer@nmr.mgh.harvard.edu *Date: *Wednesday, 18 September 2019 at 08:41 *To: *"freesurfer@nmr.mgh.harvard.edu" freesurfer@nmr.mgh.harvard.edu *Subject: *[Freesurfer] negative values of hippocampal subfields volumes
External Email - Use Caution *Hi all,
I am currently running a longitudinal hippocampal subfields analysis using version 6.0.
Based on the visual inspection of images, I see that Freesurfer is doing a great job.
The problem is that I get negative values of the subfields volumes
e.g.
Hippocamap_tail -420.400366
subiculum -368.134590
The values seems to be reasonable, but why they are negative, i.e. why they have a '-' sign.
Could the minus sign be a hyphen?
Has anybody encounther this problem? I hope you can help
BW,
Chris
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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Hello Eugenio,
I am also encountering the same problem with negative subfield volumes obtained from longitudinal hippocampal subfields analysis using Freesurfer 6.0 on MAC osx.
I could not find the suggested solution for this problem. Could you please guide us on this issue?
Thank you for your time.
Best Jay
On Wed, Sep 18, 2019 at 2:41 PM Krzysztof Gbyl krzygby@gmail.com wrote:
External Email - Use CautionHi all,
I am currently running a longitudinal hippocampal subfields analysis using version 6.0. Based on the visual inspection of images, I see that Freesurfer is doing a great job.
The problem is that I get negative values of the subfields volumes e.g. Hippocamap_tail -420.400366 subiculum -368.134590
The values seems to be reasonable, but why they are negative, i.e. why they have a '-' sign. Could the minus sign be a hyphen?
Has anybody encounther this problem? I hope you can help
BW, Chris
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
freesurfer@nmr.mgh.harvard.edu
-
Iglesias Gonzalez, Juan E. -
Jayachandra Raghava -
Krzysztof Gbyl