Abstract
PurposeTo examine the influence of incorrectly placed gonad shields on radiation dose when performing abdominal CT with automatic exposure correction, using systems from different vendors. Methods and materialsAn anthropomorphic phantom was scanned without gonad shields, and with gonad shields placed in two different positions relative to the scan range. Dose Length Product was recorded. mA distribution in the longitudinal direction was plotted. Mean dose was compared using the t-test. ResultsThree scanners showed different increase in relative DLP according to shield position. ConclusionCare must be taken when placing lead shielding at CT and characteristics of each scanner should be known to the operator.
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