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The eTIV from FS 6.0 has been used by many as a normalization measure for regional volumetric analyses. I know it is not a true voxel count but does it conceptually include extra-axial CSF or is it more a total tissue volume?
Jim
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Hi Jim
it is an estimate of everything inside skull.
cheers Bruce On Thu, 13 Dec 2018, Alexopoulos, Dimitrios wrote:
External Email - Use Caution
The eTIV from FS 6.0 has been used by many as a normalization measure for regional volumetric analyses.
I know it is not a true voxel count but does it conceptually include extra-axial CSF or is it more a total tissue volume?
Jim
The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail.
External Email - Use Caution
Ok, so eTIV includes everything within the skull. Does the method to calibrate the scaling in the talairach.xfm include extra-axial CSF?
Jim
-----Original Message----- From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu On Behalf Of Bruce Fischl Sent: Friday, December 14, 2018 9:31 AM To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] eTIV vs. ICV
Hi Jim
it is an estimate of everything inside skull.
cheers Bruce On Thu, 13 Dec 2018, Alexopoulos, Dimitrios wrote:
External Email - Use CautionThe eTIV from FS 6.0 has been used by many as a normalization measure for regional volumetric analyses.
I know it is not a true voxel count but does it conceptually include extra-axial CSF or is it more a total tissue volume?
Jim
The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail.
________________________________ The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail.
Yes
On 4/20/2020 6:57 PM, Alexopoulos, Dimitrios wrote:
External Email - Use CautionOk, so eTIV includes everything within the skull. Does the method to calibrate the scaling in the talairach.xfm include extra-axial CSF?
Jim
-----Original Message----- From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu On Behalf Of Bruce Fischl Sent: Friday, December 14, 2018 9:31 AM To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] eTIV vs. ICV
Hi Jim
it is an estimate of everything inside skull.
cheers Bruce On Thu, 13 Dec 2018, Alexopoulos, Dimitrios wrote:
External Email - Use CautionThe eTIV from FS 6.0 has been used by many as a normalization measure for regional volumetric analyses.
I know it is not a true voxel count but does it conceptually include extra-axial CSF or is it more a total tissue volume?
Jim
The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail.
The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail.
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