Review Article

Recent Developments in Computed Tomography for Urolithiasis: Diagnosis and Characterization

Figure 1

A 25-year-old male presenting with left flank pain. (a) Plain radiograph of the abdomen showing a possible renal calculus in the upper pole of the left kidney (estimated institutional dose ~0.7 mSv). The coned pelvic radiograph (b) does not demonstrate a calculus in the pelvis. Low-dose CT KUB (effective dose of 0.5 mSv) (c) and (d) clearly identifies a 5 mm calculus in the upper pole of the left kidney, as well as a 4 mm calculus, at the left ureterovesical junction. The latter was not seen on the plain radiograph.
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(a)
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(b)
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(c)
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(d)