Hi Douglas,
Thanks for your support.
From the below conclusion, can I say
Total ventricular CSF = (lh + rh) Lateral-Ventricle + = (lh + rh)Inf-Lat-Vent + (lh + rh)choroid-plexus + 3rd-Ventricle + 4th-Ventricle + 5th Ventricle + CSF.
Also Is it correct to compute Total CSF using the below mentioned formula
Total CSF = Intracranial Volume - (Total white matter + Total Gray matter)
Regards,
Janani
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Douglas Grevehttps://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu&q=from:%22Douglas+Greve%22 Mon, 31 Jul 2017 07:48:02 -0700https://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu&q=date:20170731
On 7/31/17 3:12 AM, M Janani wrote:
Hi Team,
Could you please confirm whether the below mentioned formulas to compute Total WM and ventricular CSF are correct
1.Total White Matter = CerebralWhiteMatterVol + (lh+rh) Cerebellum White Matter
looks right, though some times people will include brainstem as part of WM
2.Total ventricular CSF = (lh + rh) Lateral-Ventricle + = (lh + rh)Inf-Lat-Vent + (lh + rh)choroid-plexus + 3rd-Ventricle + 4th-Ventricle
There is a 5th ventricle (which I think is basically the aqueduct). There is also a segment called "CSF" (24) but can't remember what gets labeled as "CSF"
Thanks for your support.
Regards,
Janani
::DISCLAIMER::
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The first formula is right. I would not trust the 2nd formula since we don't compute actual ICV
On 8/2/17 2:22 AM, M Janani wrote:
Hi Douglas, Thanks for your support. From the below conclusion, can I say Total ventricular CSF = (lh + rh) Lateral-Ventricle + = (lh + rh)Inf-Lat-Vent + (lh + rh)choroid-plexus + 3rd-Ventricle + 4th-Ventricle + *5^th Ventricle + CSF.* ** **Also Is it correct to compute Total CSF using the below mentioned formula Total CSF = Intracranial Volume – (Total white matter + Total Gray matter) Regards, Janani
**
Douglas Greve https://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu&q=from:%22Douglas+Greve%22Mon, 31 Jul 2017 07:48:02 -0700 https://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu&q=date:20170731
On 7/31/17 3:12 AM, M Janani wrote: Hi Team,
Could you please confirm whether the below mentioned formulas to compute Total WM and ventricular CSF are correct
1.Total White Matter = CerebralWhiteMatterVol + (lh+rh) Cerebellum White Matter
looks right, though some times people will include brainstem as part of WM
2.Total ventricular CSF = (lh + rh) Lateral-Ventricle + = (lh + rh)Inf-Lat-Vent + (lh + rh)choroid-plexus + 3rd-Ventricle + 4th-Ventricle
There is a 5th ventricle (which I think is basically the aqueduct). There is also a segment called "CSF" (24) but can't remember what gets labeled as "CSF"
Thanks for your support. Regards, Janani ::DISCLAIMER::
The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects.
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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Thanks Douglas
From: freesurfer-bounces@nmr.mgh.harvard.edu [mailto:freesurfer-bounces@nmr.mgh.harvard.edu] On Behalf Of Douglas Greve Sent: 02 August 2017 21:15 To: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] Total White matter and CSF value Calculation
The first formula is right. I would not trust the 2nd formula since we don't compute actual ICV
On 8/2/17 2:22 AM, M Janani wrote:
Hi Douglas,
Thanks for your support.
From the below conclusion, can I say
Total ventricular CSF = (lh + rh) Lateral-Ventricle + = (lh + rh)Inf-Lat-Vent + (lh + rh)choroid-plexus + 3rd-Ventricle + 4th-Ventricle + 5th Ventricle + CSF.
Also Is it correct to compute Total CSF using the below mentioned formula
Total CSF = Intracranial Volume - (Total white matter + Total Gray matter)
Regards,
Janani
----------------------------------------------------------------------------------------------------------------------------------------------------
Douglas Grevehttps://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu&q=from:%22Douglas+Greve%22 Mon, 31 Jul 2017 07:48:02 -0700https://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu&q=date:20170731
On 7/31/17 3:12 AM, M Janani wrote:
Hi Team,
Could you please confirm whether the below mentioned formulas to compute Total WM and ventricular CSF are correct
1.Total White Matter = CerebralWhiteMatterVol + (lh+rh) Cerebellum White Matter
looks right, though some times people will include brainstem as part of WM
2.Total ventricular CSF = (lh + rh) Lateral-Ventricle + = (lh + rh)Inf-Lat-Vent + (lh + rh)choroid-plexus + 3rd-Ventricle + 4th-Ventricle
There is a 5th ventricle (which I think is basically the aqueduct). There is also a segment called "CSF" (24) but can't remember what gets labeled as "CSF"
Thanks for your support.
Regards,
Janani
::DISCLAIMER::
----------------------------------------------------------------------------------------------------------------------------------------------------
The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects.
----------------------------------------------------------------------------------------------------------------------------------------------------
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edumailto:Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edumailto:Freesurfer@nmr.mgh.harvard.edu
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freesurfer@nmr.mgh.harvard.edu
-
Douglas Greve -
M Janani