Dual Overlays in MRI Viewer

Discussions
1

Hello,

I have imported a latency z map nifti file into the Anatomy section and can view it with the MRI Viewer as an overlay on the default MRI. What I would like to do is view the latency z map nifti and overlay PNAI: MEG GRAD(Unconstr) 2018 within the same MRI viewer.

Here are the two views that I would like to have overlaid in one MRI viewer:

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MRIcroGL can do this pretty easily but I do not know how to export the PNAI: MEG GRAD(Unconstr) 2018 from Brainstorm as a DICOM stack or nifti.

If someone could help explain how to create this product within Brainstorm or export the necessary info, that would be greatly appreciated.

Regards,
Jon

2

The Brainstorm MRI Viewer can only show one overlay at a time.
If you want to display multiple volumes on the same image, you need to do it in a separate program, such as MRIcron.

To export source results as volumes: right-click on a file > File > Export as 4D matrix.
Or select your files in the Process1 box and run process File > Export to SPM8/SPM12 (volume)

3

Thank you for the feedback! I have tried exporting, as you explained for the second method. The issue I had was that the time window had to be greatly reduced and the exported product did not retain the same amplitude/threshold or positioning in atlas space.

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My current solution is to use Gimp, a free image editing software, to layer the images. This is great for snapshots to put in reports but not much more.

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4

You need to export the T1 MRI in the same way from Brainstorm, and overlay exported T1 + exported sources.