With a normal brain I was going to try it today.
I have already done it with many brains with tumor and the results are the following
As we see, the tumor is missing region. I cannot (directly at least) calculate its size or position.
Furthermore, the tumor is shown normally in the 3D projection and not on the other side (like in mirror) which is mostly in MRI the case.
Last but not least, it would be really interesting to have at the and of the analysis, at least the localisation of the tumor (parietal, central region, or much better more accurately specified). Thats shouldn’t be a problem for the software, as it is enough to compare the normal side and its structures with the tumor side.