Trauma: the impact of repeat imaging.

Background: Patients referred to trauma centers often undergo an extensive diagnostic work-up before transfer. The purpose of our study was to quantify and examine the effects of repeat imaging in this population.

Methods: A prospective cohort study of 410 patient transfers was performed. Repeat imaging was conducted at the discretion of the accepting surgeon for multiple reasons. Two groups were compared, those who did and those who did not require repeat imaging.

Results: Overall, 53% of referrals received repeat imaging, at an average cost of $2,985 per patient. This group was older (42 vs 37 y; P < .05), more severely injured (injury severity score, 12 vs 9; P < .05), and experienced longer delays before transfer (244 vs 192 min; P < .05). By using logistic regression analysis, injury severity score was found to be an independent predictor of the need for repeat imaging (P = .003).

Conclusions: Severely injured trauma patients often receive films that ultimately require duplication, resulting in transfer delay, unnecessary morbidity, and increased resource use. Targeted education and development of centralized radiology systems could alleviate some of the burden of unnecessary imaging.