EDITORIAL

Computed tomography (CT) has revolutionized diagnostic radiology. Its use has been increasing year after year due to its wide availability, its sectional imaging technology, and for being a method widely known both by radiologists and referring physi-cians. Additionally, CT is a fast imaging exam, which can be made with good quality in case of emergency, in claustrophobic and non-cooperative patients, as well as in children, mostly with no need for anesthesia. CT scan uses a higher dose of radiation than conventional radiology. Multidetector CT scans allow thinner slices that associ-ated with multiple contrast phases further enhance the radiation dose. The indiscriminate use of CT scan has significantly contrib-uted to the increase in the dose of radiation used in patients. Radiologists must remind the referring physicians of the risks of radiation and suggest alternative imaging methods, such as ul