Hematuria CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Venkata Sivakrishna Kumar Pulivarthi M.B.B.S [2]

Overview

Computed tomography(CT) of the kidneys and urinary tract is better than ultrasound in detecting stones in patients with hematuria, and it has the highest sensitivity, at 94% to 98%. Noncontrast helical CT is excellent for detection of urinary stones.

CT

CT urography has been increasingly supplanting intravenous urography when a urological cause for hematuria is suspected, as a result of its higher accuracy in detecting lesions in the renal parenchyma and the rest of the urinary tract.[1] CT urography involves the injection of iodinated contrast media, with subsequent high-resolution nephrogenic phase and delayed phase imaging to evaluate the renal pelvis, ureter, and bladder.[2]

Advantages

  • Distinguish equivocal cases, for planning treatment options and determining the nature of small renal parenchymal lesions.[1]
  • Has a high specificity and sensitivity for investigating the causes of hematuria.

Disadvantages

  • CT is expensive, time consuming and carries a high radiation exposure.

References

  1. 1.0 1.1 "www.surgeryjournal.co.uk".
  2. Rew, Karl (2010). Primary care urology. Philadelphia, Pa. London: Saunders. ISBN 978-1437724899.



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