10 Sep
2020
10 Sep
'20
12:50 p.m.
Can't you just average the lh and rh values? You can weight by the surface area or number of vertices
On 9/10/2020 12:53 PM, vittal korann wrote:
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Sorry, Douglas, I might have confused you.
Freesurfer will provide mean thickness for the whole-brain. similarly, can I have mean gyrification for the whole brain (not individual values for left and right hemisphere)?
*Finally, it worked. Thank you, Douglas.* So far I was able to get mean gyrification values for each hemisphere separately.
*What?* I want to club the left and right hemisphere values into a single value.
*/ /*
On Thu, Sep 10, 2020 at 9:50 PM Douglas N. Greve <dgreve@mgh.harvard.edu mailto:dgreve@mgh.harvard.edu> wrote:
On 9/10/2020 12:08 PM, vittal korann wrote:External Email - Use Caution Finally, it worked. Thank you, Douglas. My question is regarding the mean gyrification similar to what we get for thickness as a whole-brain mean thickness.I'm not sure what you are asking here. gyrification and thickness are differentIf there is a way to calculate, please let me know.What?Here is a command that I executed and got the mean gyrification value for the left/right hemisphere. mri_segstats --slabel CSRI004 rh $SUBJECTS_DIR/CSRI004/label/rh.cortex --i $SUBJECTS_DIR/CSRI004/surf/rh.pial_lgi --sum h.aparc.pial_lgi-csri004.stats */ /* On Thu, Sep 10, 2020 at 7:22 PM Douglas N. Greve <dgreve@mgh.harvard.edu <mailto:dgreve@mgh.harvard.edu>> wrote: Can you send the actual command you ran and all the terminal output? On 9/10/2020 12:58 AM, vittal korann wrote:External Email - Use Caution Yes, I did replace question marks with left and right. Thank you so much, Douglas. With regards Vittal */ /* On Thu, Sep 10, 2020 at 1:11 AM Douglas N. Greve <dgreve@mgh.harvard.edu <mailto:dgreve@mgh.harvard.edu>> wrote: Are you using actual question marks or are you replacing them with l or r? (you have to replace) On 9/9/2020 2:26 PM, vittal korann wrote:External Email - Use Caution I did that, but the error remains the same. mri_segstats --slabel CSRI001 ?h $SUBJECTS_DIR/CSRI001/label/?h.cortex --i $SUBJECTS_DIR/CSRI001/surf/?h.pial_lgi --sum h.aparc.pial_lgi-csri001.stats */ /* On Wed, Sep 9, 2020 at 11:32 PM Douglas N. Greve <dgreve@mgh.harvard.edu <mailto:dgreve@mgh.harvard.edu>> wrote: You need to include the hemisphere in the --slabel arguments (maybe the 2nd one) On 9/9/2020 2:10 PM, vittal korann wrote:External Email - Use Caution Dear Douglas Thank you for your help! I got an error while executing the mris_segstats command. Command: mri_segstats --slabel CSRI001?h $SUBJECTS_DIR/CSRI001/label/?h.cortex.label --i $SUBJECTS_DIR/CSRI001/surf/?h.pial_lgi --sum h.aparc.pial_lgi-csri001.stats ERROR: Option /usr/local/freesurfer//subjects/CSRI001/surf/rh.pial_lgi unknown Please correct me if something wrong in the command line. Sorry for troubling you again. With regards Vittal */ /* On Wed, Sep 9, 2020 at 10:23 PM Douglas N. Greve <dgreve@mgh.harvard.edu <mailto:dgreve@mgh.harvard.edu>> wrote: You can use mri_segstats with the --slabel option, specifying the ?h.cortex.label and using the gyrification as input On 9/9/2020 12:54 PM, vittal korann wrote:External Email - Use Caution Thank you so much, Douglas. Could you please guide me to obtain the global mean gyrification index for each subject? With regards korann */ /*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 Mass General Brigham Compliance HelpLine at http://www.massgeneralbrigham.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.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 Mass General Brigham Compliance HelpLine at http://www.massgeneralbrigham.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.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 Mass General Brigham Compliance HelpLine at http://www.massgeneralbrigham.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.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 Mass General Brigham Compliance HelpLine at http://www.massgeneralbrigham.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.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 Mass General Brigham Compliance HelpLine at http://www.massgeneralbrigham.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.