In Abdom Imaging. 2007 Feb 14, Dillman JR et al discuss the role of and various indications, specific techniques, image reconstruction/reformatting, detection of pathology, and pitfalls related to CTU. Article is entitled "Multi-detector CT urography: a one-stop renal and urinary tract imaging modality."
According to them-"Multi-detector computed tomography urography (CTU) is a robust imaging modality for evaluation of the kidneys and urinary tract. When compared to excretory urography (EU), CTU's superior contrast resolution appears to more effectively detect and characterize numerous benign and malignant conditions involving the kidneys, upper urinary tracts, and urinary bladder. "