Decreasing the tube charge from 100 to 30 mAs resulted in similar detection of renal stones while reducing patient radiation exposure by as much as 70%. Multidetector CT scanning parameters should be tailored to minimize radiation exposure to the patients while helping detect clinically significant renal stones.

Independent of other scanning parameters reconstruction section width influences the ability to detect small renal calculi. It must be considered when creating computerized tomography protocols.

The fetal kidneys and bladder are usually visible by 15 weeks' gestation on sonograms. The authors present their experience with the diagnosis of renal abnormalities in the fetus.

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