Hi Corinna,

Here is an explanation of register.dat  -  https://surfer.nmr.mgh.harvard.edu/fswiki/RegisterDat

You can use lta_convert to convert it to .lta  -  https://ftp.nmr.mgh.harvard.edu/pub/docs/html/lta_convert.help.xml.html

Best,

Yujing

From: freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu> On Behalf Of Corinna Bauer
Sent: Wednesday, October 18, 2023 1:07 PM
To: Mailing Freesurfer List <freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] .lta vs .dat questions

        External Email - Use Caution        

Hi all,

Can someone please explain the difference between .lta and .dat and why the registration looks different using the two file types?

If bbregister outputs were already checked and edited (if needed) using the .dat file, is there a way to convert it to .lta?

Thanks

Corinna