[Alexandre]

Thank you, it was of great help.

I was going through the stimulation folders and ea_stats file and I could find the VTAs volume. Is there a way to find the VTAs diameter or radius?

Regards,

Alexandre

[Alexandre]

Thank you! very useful

[Alexandre]

Thank you Andy.

Would you mind explaining what space are the VTAs output from lead dbs? I under the impression they were already in MNI space since the software draws them around the contact coordinates which is in MNI space? Sorry, just a little confused here as why we have to reslice.

[Alexandre]

To follow-up on my email, it seems that the s/q form is different amongst the VTA files. It was my understanding that when I used ANTs, the electrodes/VTAs would all be in ICBM 152 2009b Nonlinear Asymmetric. is there something I should do to the VTA files to homogenize them before trying to combine them?

[Alexandre]

Hi,
I would need some help regarding the output of the simulation of stimulation (example below):
stimparameters.mat
vat_efield_gauss_left.nii
vat_efield_gauss_right.nii
vat_efield_left.nii
vat_efield_right.nii
vat_left.nii
vat_right.nii

1. I am trying to find exactly what these outputs are and I believe that the “vat_left.nii” and “vat_right.nii” are binary mask of the VTAs. Would that be a correct statement?

2. As a follow-up to my question above, it seems that I am getting errors when I try to use these binary mask and doing simple command such as adding the masks. For example, in FSL, if I use the fslmaths -add with the “vat_right.nii” I get the following error message:

Error message following fslmath (e.g., fslmaths 1802_left.nii -add 1803_left.nii sum_left.nii.gz)
WARNING:: Inconsistent orientations for individual images in pipeline!
Will use voxel-based orientation which is probably incorrect – *PLEASE CHECK*!

Would you have any idea why? Is there something I should do on the VTAs output from lead dbs before trying to add them?

Thank you!

[Alexandre]

Thank you for releasing Lead DBS 2.0, very useful updates.

I had a question regarding the output of the simulation of stimulation (example below):
stimparameters.mat
vat_efield_gauss_left.nii
vat_efield_gauss_right.nii
vat_efield_left.nii
vat_efield_right.nii
vat_left.nii
vat_right.nii

1. Could you briefly explain what all these files are?
2. In order to obtain a binary VTA mask that can be used, which of these files should I use?

Thank you!

[Alexandre]

Thank you Andy! I am looking forward to it! This is a great software, thank you so much.

[Author]

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