This review article comprehensively discusses multidetector CT urography protocols and their role in imaging of the urinary tract in patients with hematuria.
Hematuria/etiology/*radiography ; Human ; Incidental Findings ; Sensitivity and Specificity ; Tomography, X-Ray Computed/*methods/standards ; Urinary Tract/abnormalities ; Urography/methods/standards ; Urologic Diseases/complications/congenital/radiography

Concerns have been raised over alleged overuse of CT scanning and inappropriate selection of scanning methods, all of which expose patients to unnecessary radiation. Thus, it is important to identify clinical situations in which techniques with lower radiation dose such as plain radiography or no radiation such as MRI and occasionally ultrasonography can be chosen over CT scanning. This article proposes the arguments for radiation dose reduction in CT scanning of the chest and discusses recommended practices and studies that address means of reducing radiation exposure associated with CT scanning of the chest.
Human ; *Practice Guidelines ; Radiation Dosage ; Thorax ; Tomography, X-Ray Computed/*adverse effects/*methods