I recently had a second MRV, on which I found a possible stenosis on (http://www.thisisms.com/ftopicp-95066.html#95066
) I had previously had an MRV performed which only covered my head and the higher part of my neck. Nothing was visible in the first one, so I thought I may of had a lower stenosis.
However, the issue I found in the second MRV, is within the range covered by the first MRV. I have now gone back over it, and still can't seem to find it on the first MRV, but I also can not resolve a link between the two (both done on different machines, by different radiologists at different MRI strengths).
I personally think it is not a case of a vanishing stenoisis, but its just a personal thought, not a scientifically based idea.