Kaplan SL, Magill D, Felice MA, et al. Intussusception reduction: Effect of air vs. liquid enema on radiation dose. Pediatr Radiol. 2017 Oct;47(11):1471-1476.

We test the hypothesis that air enema reduction of ileocolic intussusception results in lower radiation dose than liquid contrast enema independent of fluoroscopy time. We describe a role for automatic exposure control in this dose difference. We retrospectively evaluated air and liquid intussusception reductions performed on a single digital fluoroscopic unit during a 26-month period. We compared patient age, weight, gender, exam time of day and year, performing radiologist(s), radiographic image acquisitions, grid and magnification use, fluoroscopy time and dose area product.