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A member asked:
How do you calclate rar (what is the process)?
A doctor has provided 1 answer
RAR: Do you mean the Renal-Aortic Ratio used in renal artery ultrasounds of the kidneys? According to this article which discusses it, http://www.jultrasoundmed.org/content/25/3/293.full To calculate the RAR with the following equation: RAR = renal PSV/aortic PSV. PSV is the peak systolic velocity. If this is not what you mean by RAR, ask your question again and clarify.
Answered 10/22/2015
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