Screening patients with multi-detector computed axial tomography (MDCT): when will we inform patients about the risk of radiation?

The National Academy of Science report on the Biological Effects of Ionizing Radiation (BIER VII) estimated that a single population dose of 10 mSv is associated with a lifetime risk for developing a solid cancer or leukaemia by 1 in 1000 exposures. 3 Our level 1 trauma centre emergency department recently installed a General Electric Lightspeed VCT MDCT scanner.