What is the meaning of SV RU on chest xrays?

Answer 1

OK...I am pulling this from memory from many years ago so take it as a first shot.

UR means Upper Right

SV means Sievert a unit of measurement equal to 1000 millisievert. It is the measure of unit for the amount of ionizing radiation to produce 1 RAD of high penetration X-ray...aka....the unit of absorbed radiation or a dose equivalent.

Don't know if that helps but it's a start.