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Thank you, Bruce.

Just a follow-up question for my clarification, recon -all - all provides different files including

1. aparc. a2009s. stats 2. aparc. DKTatlas. stats 3. aparc. stats

Now, which one of these files should I use if I would like to consider Desikan-Killiany atlas?

Thanks you for your help. Regards

On Wed, 1 Dec, 2021, 8:29 pm Fischl, Bruce, BFISCHL@mgh.harvard.edu wrote:

Hi KC

I think that not all regions occur in all subjects. I know that is true of Christophe’s parcellation and think it is also true of Ron and Rahul’s, but I’ll cc Ron who can comment

Cheers

Bruce

*From:* freesurfer-bounces@nmr.mgh.harvard.edu < freesurfer-bounces@nmr.mgh.harvard.edu> *On Behalf Of *Koustav Chatterjee *Sent:* Wednesday, December 1, 2021 2:11 AM *To:* Freesurfer support list freesurfer@nmr.mgh.harvard.edu *Subject:* [Freesurfer] Queries on DK Atlas and No of regions

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Dear all,

I had an understanding that Desikan-Killiiany atlas can parcellate total of 68 regions from both hemispheres. However, after running recon-all -all, I can see total of 62 regions. I am afraid if you could help me understanding these discrepancies..

Thank you for your help.

Regards,

KC _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://secure-web.cisco.com/1GnoCQZXO2mG5iyFjv05bsRV4ZeSOcymMn447urTx4bSQFc... 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://secure-web.cisco.com/1neMMSwuMQu4buf6_Ln0uHk5B_sgFJZsv1sMcURboEAfVV1B... . 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. Please note that this e-mail is not secure (encrypted). If you do not wish to continue communication over unencrypted e-mail, please notify the sender of this message immediately. Continuing to send or respond to e-mail after receiving this message means you understand and accept this risk and wish to continue to communicate over unencrypted e-mail.

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Thank you so much for your time and help. Regards, Koustav

On Wed, 1 Dec, 2021, 9:43 pm Fischl, Bruce, BFISCHL@mgh.harvard.edu wrote:

aparc.stats is the DK atlas. Aparc.DKTatlas.stats is the DKT one

cheers

Bruce

*From:* freesurfer-bounces@nmr.mgh.harvard.edu < freesurfer-bounces@nmr.mgh.harvard.edu> *On Behalf Of *Koustav Chatterjee *Sent:* Wednesday, December 1, 2021 10:48 AM *To:* Freesurfer support list freesurfer@nmr.mgh.harvard.edu *Cc:* ron_killiany Ron KILLIANY (rkilliany@cajal-1.bu.edu) < rkilliany@cajal-1.bu.edu> *Subject:* Re: [Freesurfer] Queries on DK Atlas and No of regions

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Thank you, Bruce.

Just a follow-up question for my clarification, recon -all - all provides different files including

1. aparc. a2009s. stats

2. aparc. DKTatlas. stats

3. aparc. stats

Now, which one of these files should I use if I would like to consider Desikan-Killiany atlas?

Thanks you for your help.

Regards

On Wed, 1 Dec, 2021, 8:29 pm Fischl, Bruce, BFISCHL@mgh.harvard.edu wrote:

Hi KC

I think that not all regions occur in all subjects. I know that is true of Christophe’s parcellation and think it is also true of Ron and Rahul’s, but I’ll cc Ron who can comment

Cheers

Bruce

*From:* freesurfer-bounces@nmr.mgh.harvard.edu < freesurfer-bounces@nmr.mgh.harvard.edu> *On Behalf Of *Koustav Chatterjee *Sent:* Wednesday, December 1, 2021 2:11 AM *To:* Freesurfer support list freesurfer@nmr.mgh.harvard.edu *Subject:* [Freesurfer] Queries on DK Atlas and No of regions

•    External Email - Use Caution        *
  
  

Dear all,

I had an understanding that Desikan-Killiiany atlas can parcellate total of 68 regions from both hemispheres. However, after running recon-all -all, I can see total of 62 regions. I am afraid if you could help me understanding these discrepancies..

Thank you for your help.

Regards,

KC

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