Thank you very much Mr. Rorden

With your permission, some following questions:
1. The space between voxels is not included when measuring volume, or given volume of each voxel includes spacing?
I have seen in previous posts that to get volume in cubic mm, spacing of the three dimensions should be multiplied by number of voxels.

2. My VOIs (lesion maps) and the background image (MNI) have different resolutions (voxel sizes and dimensions). 
Trying overlay the same VOI on two different resolution backgrounds, I see that it affects nvox but not volume in cc.
Does is make sense? Should I first coreg:reslice my VOIs to the background image dimension? 


Cheers!
Tammar