Abstract
The development of multi-slice CT systems has allowed the introduction of CT urography (CTU) as a routine urological diagnostic procedure. Compared with IVU and ultrasound, it offers increased sensitivity and specificity in the identification and diagnosis of renal, ureteric and intravesical lesions. Additionally, it allows the diagnosis of other abdominal conditions that may mimic urinary disease. The principle disadvantage of CTU is the radiation burden it imposes compared to the IVU. The typical radiation dose for a split-bolus CTU is approximately 20 mSv. This is equivalent to 9 years of average natural background radiation in the UK and almost 20 times the typical radiation dose from an IVU.
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Further Reading
Kekelidze M, Dwarkasing RS, Dijkshoorn ML, Sikorska K, Verhagen PC, Krestin GP. Kidney and urinary tract imaging: triple bolus multidetector CT urography as a one-stop shop – protocol design, opacification and image quality analysis. Radiology. 2010;255(2):508–16.
Van Der Molen AJ, Cowan NC, Mueller-Lisse UG, Nolte-Ernsting CC, Takahashi S, Cohan RH, CT Urography Working Group of the European Society of Urogenital Radiology (ESUR). CT urography: definition, indications and techniques. A guideline for clinical practice. Eur Radiol. 2008;18:4–17.
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© 2012 Springer-Verlag London
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Taylor, P.M. (2012). How to Do a CT Urogram (CTU). In: Payne, S., Eardley, I., O'Flynn, K. (eds) Imaging and Technology in Urology. Springer, London. https://doi.org/10.1007/978-1-4471-2422-1_12
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DOI: https://doi.org/10.1007/978-1-4471-2422-1_12
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