Inclusion Criteria:  Clinical suspicion of intra-abdominal injury Presentation within 24 hours of injury Planned CT of the abdomen/pelvis within 24 hours Ability of patient or legally authorized representative to provide informed consent  Exclusion Criteria:  Co-existing penetrating abdominal injury Known hypersensitivity reaction to contrast agent Pregnant patients Prisoners No appropriate IV Line able to be inserted Hemodynamic instability at time of enrollment (sustained systolic blood pressure < 90 mm Hg or sustained heart rate (HR) >120 despite initial resuscitation)