External Email - Use Caution On Mon, Jan 30, 2023 at 12:40 PM Lee, Sang Hoon <[email protected]> wrote:
> External Email - Use Caution > > Dear, Matt, > > > > What kind of issues did you have with version 7.x and the hires stream? > > It would help us to know what we are facing… > > Thanks. > > > > Sang > > > > *From:* [email protected] < > [email protected]> *On Behalf Of *Glasser, Matt > *Sent:* Monday, January 30, 2023 1:23 PM > *To:* Freesurfer support list <[email protected]> > *Subject:* [EXTERNAL] Re: [Freesurfer] High resolution T1 > > > > *CAUTION:* This email originated from outside the organization. *DO NOT > CLICK ON LINKS* *or* *OPEN ATTACHMENTS* unless you know and trust the > sender. > > * External Email - Use Caution * > > We showed improved data (more accurate surface placement leading to more > accurate myelin maps) in prior publications (Glasser et al., 2013; 2014 > Neuroimage). It makes a difference for cortical thickness too (e.g., > falsely too low cortical thickness in auditory cortex in Glasser and Van > Essen 2011 Journal of Neuroscience). That said, at least in our hands we > have had some issues with FreeSurfer 7.X and the hires stream. I’ve been > hoping that the FS folks have a chance to investigate that soon, but for > now we have stuck with FS 6.0 for the HCP and HCP Pipelines. > > > > In general, it’s good to have at least two voxels of grey matter for even > the thinnest cortical areas (e.g., somatosensory area 3b, visual area V1), > which are about 1.6mm thick. This is where the HCP’s recommendation of at > least 0.8mm isotropic T1w and T2w or FLAIR images comes from (and why we > didn’t stick with the typical 1mm resolution recommendation that was > prevalent before the HCP). > > > > Matt. > > > > *From: *<[email protected]> on behalf of "Lee, Sang > Hoon" <[email protected]> > *Reply-To: *Freesurfer support list <[email protected]> > *Date: *Monday, January 30, 2023 at 9:22 AM > *To: *"[email protected]" <[email protected]> > *Subject: *[Freesurfer] High resolution T1 > > > > * External Email - Use Caution * > > I understand that from Version 7.0, better high resolution surface > reconstruction with -hires is done. > > My question is, if we use higher resolution T1, such as 0.8mm, will it > improve the accuracy of the cortical thickness measurement? If yes, is > there any reference? > > Thank you so much for your time! > > > > > > *Sang H. Lee* (Sr. Research Associate III) > > UM-Millier School of Medicine > > > > > > > ------------------------------ > > 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. > _______________________________________________ > Freesurfer mailing list > [email protected] > https://secure-web.cisco.com/18vOJ6Mz_58dKWe49NnMQ1ikc1gn1wW_PjcqgFh0J6_SLs3kLVrq3WC8j8PIUXXRCttSZyPx5-WSrZdWoPVKPM4tknFN_EhTxYCc_E3-TLsIX8CaQV4OJeMFhfoWkEqx3MFkqU7yQ1RBGyyxUv7QAqBR8BW_eSJTcVChB_QD7v9ir5mGNsdJj0NrPZDDjGTp_N2yBClv3Ubxf_ygav2dmHQ2rc8sMzTo2rhw15T0CRM-v0Xbyu9-02TJrB_EACfRB_PlxcKoKK4hXEXrGoTgtCEAOGI7nv9Fnx1JxrUIvPvgXzXsl_iYBVpHEEgY8zMfXsz9caJiN0Cn-b1ZxTzb5dw/https%3A%2F%2Fmail.nmr.mgh.harvard.edu%2Fmailman%2Flistinfo%2Ffreesurfer > 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 > https://secure-web.cisco.com/1gl0MMFeytOpH46Zmu8hmVhALID701JslI1M8GZyAYppIk0QUnnGg-4kn0if8KbYHhc-zKWTQlc2v7W4SXTqSbUJDqLyaSYRpiERmwJgQvGiHZMKlFnkePgEugCPhjAyjrnINA3qGje-8dDSlR9eub7y0mF5y-od_n2rypFrNeUwL4zPnWV_OzFDQtsRbEsP6cL2e_XkQruOG0YGZJLG8A5q9tWEzdNUqVZt6Av5kD7zXhBxYZw1aSNGNTtY4JJewF4w6lkNMa8k1hlm1XbBEgMIqsOuttmjekBnkt7ITXBLj85DSdR2Dz-WJDxC2SAtdxTRI8FkT416D31_cb6697w/https%3A%2F%2Fwww.massgeneralbrigham.org%2Fcomplianceline > < > https://secure-web.cisco.com/1gl0MMFeytOpH46Zmu8hmVhALID701JslI1M8GZyAYppIk0QUnnGg-4kn0if8KbYHhc-zKWTQlc2v7W4SXTqSbUJDqLyaSYRpiERmwJgQvGiHZMKlFnkePgEugCPhjAyjrnINA3qGje-8dDSlR9eub7y0mF5y-od_n2rypFrNeUwL4zPnWV_OzFDQtsRbEsP6cL2e_XkQruOG0YGZJLG8A5q9tWEzdNUqVZt6Av5kD7zXhBxYZw1aSNGNTtY4JJewF4w6lkNMa8k1hlm1XbBEgMIqsOuttmjekBnkt7ITXBLj85DSdR2Dz-WJDxC2SAtdxTRI8FkT416D31_cb6697w/https%3A%2F%2Fwww.massgeneralbrigham.org%2Fcomplianceline> > . >
_______________________________________________ Freesurfer mailing list [email protected] https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer 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 https://www.massgeneralbrigham.org/complianceline <https://www.massgeneralbrigham.org/complianceline> . 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.
