Whole-Body CT for Trauma: Strategies to Justify Radiation Dose by Using the Injury Severity Score (original) (raw)

Abstract

PURPOSE Patiens who have sustained multiple trauma are often young and the radiation doses in this range confer a lifetime cancer risk of up to 1/500. It is therefore clear that these scans have to be fully justified either in terms of imaging findings or in potential change in management. Thus, the purpose of our study was to evaluate whether in a selected group of patients, targeted region specific CT (focused CT) can replace Whole-Body CT (WBCT) by using the Injury Severity Score(ISS). METHOD AND MATERIALS A continuous series of 170 patients (mean age 35.2 years ) were included. All patients underwent WBCT ( head to symphysis), with a 64-slice scanner ( Somaton Definition, Siemens, Germany), equipped with an automatic tube current modulation system (Care Dose 4D) In order to evaluate any discrepancy in terms of clinical indications for WBCT, the ISS of each patient was retrospectevely evaluated and compared to the discharge diagnosis. We used an ISS of 15 as a cut-off point becau...

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