Agatston scoring: @curtislisle offered to put the computation script into an easy-to-use Slicer module - see details here
I don’t know what you mean by “3D VRI”. Some kind of volume rendering, or virtual reality, or something else?
In VR the tools no working
Do you mean virtual reality or volume rendering?
Could you describe what you did, what you expected to happen, and what happened instead?
Maybe instead of answering very specific questions, it could be better if you described your clinical end goal and then we would tell how to accomplish those in Slicer.