Hi @Mic80,
This is another one of those "it depends" things. It depends on your doctors choices as well as other things. For example, I finished rads in the July and they rescanned (mammo, u/s and MRI) in October as that was12 months since surgery. In the following two years I have had multiple scans due to weird things showing up or causing problems.
Practically every part of me has ben scanned and rescanned for various reasons. I have no faith in the mammo's and u/s on there own so always get all three done.
If you jump up and down hard enough they tend do it just to shut you up I think LOL.