Hi all,
I was wondering whether one could take a standard MRI template and 'populate' it with SEEG locations (without a post-MRI or CT showing where they are). I'm doing this because we are working across labs and I'm trying to generate some a priori hypotheses before requesting large data files. Right now I have the locations of their SEEG implants in MNI coordinates. I just want to manually populate those coordinates onto the template MRI. Thanks!
@dfitzge1, one could do that. The idea of having the post-implantation CT (or MRI) is to localize the contacts from the images.
You can add the contacts manually using the MNI coordinates as references (using the MRI viewer),
https://neuroimage.usc.edu/brainstorm/Tutorials/ECoG#Edit_the_contacts_positions
Or you can import the position of the contacts automatically.
https://neuroimage.usc.edu/brainstorm/Tutorials/Epileptogenicity#Import_the_contacts_positions
Regardless of the approach, you may want to try those two tutorials before hand to get familiar with SEEG in Brainstorm
It looks like both of these options require a channel of data to add the SEEG electrodes. Can I just import or create a blank channel file? I don't have the data files yet 
Yes you can start without a channel file, each SEEG contact will create an entry in the blank channel file. Check the walktrough document for the recent workshop:
Hi @dfitzge1
Adding to @Raymundo.Cassani recommendation,
you can also start your implantation on any subject MRI.
and then use the iEEG panel to create an electrode (+) or remove the electrode (-), and you can also play with all the available option in that panel.
check this quick video:
When you are done with the electrode, save the modifications, and it will create for you the channel file.
Thanks for the help all! As an additional 'solution', I was able to just add a bunch of custom 'scouts' to a cortex surface and that was a quick and dirty way of seeing where the SEEGs were. Thanks again!
It's not a dirty approach, as long as you want to have this as a first template/model.
But for more accurate modeling and analysis, we recommend having the CT and using it for contact localization.
Yes --> I've been going through the tutorials and they are terrific! Thanks for all the work you guys / gals do
