I want to say: Whether we use site A or site B in the analysis, we will get the same results. Both A and B are anatomical sites (or topographies) in the human body. So the results of the test will be almost identical whether we use the data from A site or B site. Now I want to express the whole idea in short form using phrases in bullets to be used in a seminar meeting, the nearest phrases which came to my mind are these two:
The test is robust, cost-effective and cross-topography.
The test is robust, cost-effective and topography-invariable.
So my question is: what would be the best way to express this idea? Thank you in advance.