Simplified split-bolus intravenous contrast injection technique for pediatric abdominal CT

Abstract

PurposeTo investigate pediatric abdominal CT using a simplified split-bolus (Split group) contrast injection compared with a single bolus (Control group). MethodsRadiation dose, image quality and diagnostic accuracy were compared. ResultsSplit group demonstrated lower effective dose (2.46 vs. 2.85mSv, p=0.002) and noise levels in aorta, liver and portal vein (p<0.001). There was one false-negative case of portal vein obliteration in the Split group. ConclusionsA simple method of split-bolus intravenous contrast injection technique can provide adequate and homogeneous enhancement in pediatric abdominal CT.