Image dimension/bounding box size compatibility (spmT vs. results.Mask.img)

Hello,

I am working through TFCE image outputs in CONN in 2nd level folders:

spmT (dimensions: 113x136x113)
results.Mask.img (dimension: 92x115x97)

Both images are in 1.6mm space, but are they compatible based on their different dimensions?
They seems to load in together fine as overlays in MRICRON etc.

Why are they in different fields of view/bounding box/dimensions?

Thank you!
Sarah