What is the role of IV pyelography (IVP) in the workup of azotemia?

Updated: Apr 24, 2020
  • Author: Moro O Salifu, MD, MPH, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Intravenous pyelography (IVP) can provide detailed information concerning calyceal anatomy and the size and shape of the kidney. It is extremely useful for detecting renal stones. IVP is the preferred technique for evaluation and diagnosis of certain structural disorders (eg, chronic pyelonephritis, medullary sponge kidney, and papillary necrosis). It can provide data on the degree of obstruction. The risk of contrast nephrotoxicity should be weighed against the benefits of making a diagnosis that will not change management.

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