What is the role of radiography in the workup of chronic kidney disease (CKD)?

Updated: Jul 21, 2021
  • Author: Pradeep Arora, MD; Chief Editor: Vecihi Batuman, MD, FASN  more...
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A retrograde pyelogram may be indicated if a high index of clinical suspicion for obstruction exists despite a negative finding on renal ultrasonography. Intravenous pyelography is not commonly performed, because of the potential for renal toxicity from the intravenous contrast; however, this procedure is often used to diagnose renal stones.

Plain abdominal radiography is particularly useful to look for radio-opaque stones or nephrocalcinosis, while a voiding cystourethrogram (VCUG) is the criterion standard for diagnosis of vesicoureteral reflux.

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