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==Overview==
==Overview==
Computed tomography(CT) of the kidneys and urinary tract is better than ultrasound in detecting [[Kidney stone|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 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.<ref name="Surgery (Oxford)">{{cite web |url=http://www.surgeryjournal.co.uk/article/S0263-9319(10)00199-7/abstract |title=www.surgeryjournal.co.uk |format= |work= |accessdate=}}</ref> 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.<ref>{{cite book | last = Rew | first = Karl | title = Primary care urology | publisher = Saunders | location = Philadelphia, Pa. London | year = 2010 | isbn = 978-1437724899 }}</ref>
[[Computed tomography|Computed tomography(CT)]] may be helpful in the diagnosis of bladder cancer in a patient with gross hematuria without any obvious etiology. However, [[ultrasonography]] plus [[cystoscopy]] are usually enough, less costly, and safer as opposed to CT which includes the use of contrast material. [[Computed tomography|Computed tomography(CT)]] of the [[kidney]]<nowiki/>s and [[urinary tract]] is better than ultrasound in detecting [[Kidney stone|stones]] in patients with hematuria, and it has the highest sensitivity, at 94% to 98%. Noncontrast helical CT is excellent for the detection of urinary stones.  


==CT==
==CT==
*[[Computed tomography|Computed tomography(CT)]] may be helpful in the diagnosis of bladder cancer in a patient with gross hematuria without any obvious etiology. However, [[ultrasonography]] plus [[cystoscopy]] are usually enough, less costly, and safer as opposed to CT which includes the use of contrast material<ref name="pmid34233098">{{cite journal |vauthors=Ingelfinger JR |title=Hematuria in Adults |journal=N Engl J Med |volume=385 |issue=2 |pages=153–163 |date=July 2021 |pmid=34233098 |doi=10.1056/NEJMra1604481 |url=}}</ref>.
*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]].<ref name="Surgery (Oxford)">{{cite web |url=http://www.surgeryjournal.co.uk/article/S0263-9319(10)00199-7/abstract |title=www.surgeryjournal.co.uk |format= |work= |accessdate=}}</ref>
*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]].<ref>{{cite book | last = Rew | first = Karl | title = Primary care urology | publisher = Saunders | location = Philadelphia, Pa. London | year = 2010 | isbn = 978-1437724899 }}</ref>
'''Advantages'''
'''Advantages'''
* Distinguish equivocal cases, for planning treatment options and determining the nature of small renal parenchymal lesions.
* Distinguish equivocal cases, for planning treatment options and determining the nature of small renal parenchymal lesions.<ref name="Surgery (Oxford)">{{cite web |url=http://www.surgeryjournal.co.uk/article/S0263-9319(10)00199-7/abstract |title=www.surgeryjournal.co.uk |format= |work= |accessdate=}}</ref>
* Has a high specificity and sensitivity for investigating the causes of hematuria.
* Has a high specificity and sensitivity for investigating the causes of hematuria.
'''Disadvantages'''
'''Disadvantages'''
* CT is expensive, time consuming and carries a high radiation exposure.
* CT is expensive, time-consuming, carries a high radiation exposure, and includes contrast material.<ref name="pmid34233098">{{cite journal |vauthors=Ingelfinger JR |title=Hematuria in Adults |journal=N Engl J Med |volume=385 |issue=2 |pages=153–163 |date=July 2021 |pmid=34233098 |doi=10.1056/NEJMra1604481 |url=}}</ref>


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}
[[Category:Nephrology]]
[[Category:Urology]]
[[Category:Urologic Disease]]
[[Category:Emergency medicine]]
[[Category:Primary care]]


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Latest revision as of 15:36, 10 August 2021

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Adnan Ezici, M.D[2] Venkata Sivakrishna Kumar Pulivarthi M.B.B.S [3]

Overview

Computed tomography(CT) may be helpful in the diagnosis of bladder cancer in a patient with gross hematuria without any obvious etiology. However, ultrasonography plus cystoscopy are usually enough, less costly, and safer as opposed to CT which includes the use of contrast material. 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 the detection of urinary stones.

CT

  • Computed tomography(CT) may be helpful in the diagnosis of bladder cancer in a patient with gross hematuria without any obvious etiology. However, ultrasonography plus cystoscopy are usually enough, less costly, and safer as opposed to CT which includes the use of contrast material[1].
  • 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.[2]
  • 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.[3]

Advantages

  • Distinguish equivocal cases, for planning treatment options and determining the nature of small renal parenchymal lesions.[2]
  • Has a high specificity and sensitivity for investigating the causes of hematuria.

Disadvantages

  • CT is expensive, time-consuming, carries a high radiation exposure, and includes contrast material.[1]

References

  1. 1.0 1.1 Ingelfinger JR (July 2021). "Hematuria in Adults". N Engl J Med. 385 (2): 153–163. doi:10.1056/NEJMra1604481. PMID 34233098 Check |pmid= value (help).
  2. 2.0 2.1 "www.surgeryjournal.co.uk".
  3. Rew, Karl (2010). Primary care urology. Philadelphia, Pa. London: Saunders. ISBN 978-1437724899.

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