dear guys,
I have a question concerning your recently tool for overlap different signal in the same subject.
I would like to overlap a Diffusion tensor imaging (a tracts in nifti format) onto my template with activation patterns, both in the MNI coordinates.
Do you think is it possible?
Thank you very much!
Luca
Hi Luca,
If this is a volume image that is coregistered to the T1 MRI you are using in Brainstorm, maybe you can find a way to import it in your subject.
First make sure the two volumes are aligned (by overlaying the diffusion volume with the structural one), then make the new volume the default for this subject (double-click, displayed in green) and display the MEG/EEG source maps on the MRI.
Have you tried?
Francois
Hi Francois,
I tried, but when I compute the coregistration (if I choose ignore the program does not allow me to load it since the volume looks duifferent) the results is bad (the tracts became very distorted).
For example I tried also to overlay the ICBM 152 with the template provided by Catani’s group in MRIcron (NatTemplate), that is a .nii file already coregister in the MNI space. But the results is the same.
Luca
Brainstorm needs the volumes to be strictly matching, not only to have a 4x4 transformation matrix that indicates how to convert voxels to MNI coordinates.
It was not designed to be a software for processing volumes initially… I’m adding small tools here and there for making the volume handling easier, but it’s far from having all the tools it needs.
I have no idea how much time it would require to help you import your volumes, and we don’t have the resource necessary to engage further developments in this direction right now. If you are willing to contribute to this part of the project, I can provide you with more details on how these things are done in Brainstorm. All the code is on GitHub, you’re welcome to join.
Francois