Adding scout on 3D MRI volume

[niko808080]

Hello
I created MRI volume images but am not able to add scouts. It is asking to do it on 3D MRI image but it is still not working. In that case how to extract the values corresponding to the spot of interest in volume MRI?
Thanks

[Francois]

Hello,

Have you followed the instructions in the tutorial "Volume source information"?
http://neuroimage.usc.edu/brainstorm/Tutorials/TutVolSource#Volume_scouts
If so, please describe precisely which step you could not reproduce.

It looks like there are some bugs still around for the creation of volume scouts in some cases. If you don't manage to make it work, please have a look at the following forum threads:

Volume Model Beginner Questions

Hello, There is a warning about this issue in the tutorial page about sources: http://neuroimage.usc.edu/brainstorm/Tutorials/SourceEstimation This is a pending question. Maybe @John_Mosher can share more information? I fixed a similar bug last week: Possible bug with defining volume scouts using MNI coordinates But the version from January 19th should have this update, so it must be something else… Is this with a volume or mixed forward model? Can you create a scout using the regular …

Possible bug with defining volume scouts using MNI coordinates

Hi Francois, I’ve made a transformation to MNI coordinates in Brainstorm, and selected a point of interest in the posterior left thalamus based on the MNI template. The coordinates in mm are -10 -32 -6. When I enter it into the “set coordinates” box, it goes to a reasonable location in the left posterior thalamus. I would now like to create a volume scout based on this point, on a mixed model (cortex = surface, subcortical regions = volume). I go to my source model, open with MRI 3D viewer, At…

Cheers,
Francois

[niko808080]

Thanks Francois for the answer.
I can add scouts on dSPM 3D volume MRI plots.

1. In my analysis I did time-frequency, power, volume MRIs. When I go to Scout > New cordinates and add the cordinates, I get scout in the scout window but it is not in the brain (figure 1).
2. When I go to Atlas > New atlas > volume scouts, there is an error message: no source results loaded in this figure (figure 2).
   Thanks
   figure1:
   
   

figure 2: